Power conversion equipment for overhead line and high-voltage cable

Abstract

The utility model provides power conversion equipment for an overhead line and a high-voltage cable, which belongs to the technical field of overhead power conversion equipment and comprises movable hoisting equipment, a power conversion terminal, a cable electric fixing device and a power conversion cable. The power conversion terminal is connected with an overhead line, and then is connected with a power supply line through a power conversion cable for temporary power supply. Meanwhile, the power conversion cable is clamped and fixed through the cable electric fixing device arranged on the suspension arm, the power conversion cable can be prevented from loosening under the gravity effect after being lifted, and the rolling supporting part can support the power conversion cable, reduce friction, prevent the power conversion cable from being damaged and avoid loosening caused by friction.

Description

Technical Field

[0001] The utility model belongs to the technical field of overhead power transfer equipment, and particularly relates to an overhead line and high-voltage cable power transfer equipment. Background Technique

[0002] With the development of the national economy, the electricity demand is increasing continuously, and the structure of the overhead power transmission system is becoming more and more complex, and its safe operation is particularly important. In the actual operation of the overhead power transmission line, due to factors such as line aging, improper surrounding engineering construction, settlement of the support foundation, and natural disasters, the overhead power transmission line may fail, resulting in widespread power outages; or due to the need to relocate and modify the overhead line for cooperation with municipal construction, etc., the relocation and repair time of the overhead line is long, resulting in long power outage time and wide range. The cost of using a temporary overhead line to achieve temporary power transmission is relatively high. The height of a 220kV overhead iron tower can reach 18 - 36m, and there are difficulties such as inconvenient erection and long cycle, and inconvenient docking with the temporary cable line. For the overhead line repair and transformation project in the context of the above extreme disasters or line relocation and transformation, the power transmission operation unit faces a dilemma of long-term power outage or extremely high-cost construction of a temporary overhead power transmission channel. At present, when there is a problem with the overhead power transmission line, most of them repair and manufacture the cable terminal on the iron tower in the form of temporarily building a platform + crane. First, it requires a long power outage time and on-site production; second, it is necessary to build a relatively high platform for the production of the terminal, etc., with low safety and low efficiency. In this regard, some existing technologies have proposed some emergency repair solutions that can cope with overhead lines, but the cable is prone to looseness and damage due to its own gravity and friction. Content of the Utility Model

[0003] The utility model aims to at least solve the above technical problems existing in the prior art. For this reason, the utility model provides an overhead line and high-voltage cable power transfer equipment, which can quickly transfer power and restore power supply, and can prevent the cable from loosening or being damaged.

[0004] The overhead line and high-voltage cable power transfer equipment according to the embodiment of the utility model includes:

[0005] A mobile lifting device, which is provided with a boom;

[0006] A power transfer terminal, which is arranged at the end of the boom;

[0007] A cable electric fixing device, which is arranged on the boom. The cable electric fixing device is provided with a clamping assembly and a rolling support part. The clamping assembly can be adjusted to open and close electrically. The clamping assembly defines a cable clamping space, and the rolling support part is arranged in the cable clamping space;

[0008] A power transfer cable, one end of the power transfer cable is connected to the power transfer terminal, and a connector is provided at the other end. The power transfer cable can be clamped and fixed to the boom by the clamping assembly.

[0009] The overhead line and high-voltage cable power transfer device according to the embodiment of the present invention has at least the following beneficial effects: In the overhead line and high-voltage cable power transfer device of the present invention, the mobile lifting device can be quickly moved to the vicinity of the overhead tower, and the boom can be lifted to the height required for power connection to realize the connection between the power transfer terminal and the overhead line, and then the power supply line is connected through the power transfer cable for temporary power supply. At the same time, the power transfer cable is clamped and fixed by the cable electric fixing device provided on the boom, which can prevent the power transfer cable from loosening due to the gravity after being lifted. And the rolling support part can support the power transfer cable, reduce friction, avoid damage to the power transfer cable, and avoid loosening due to friction. The cable electric fixing device is adjusted by electric control opening and closing. During the lifting process, the cable electric fixing device at the end of the boom can be controlled to clamp, while the other cable electric fixing devices distributed along the length direction of the boom are loosened. Thus, when the boom extends and lifts, it can not only prevent the connection between the power transfer cable and the power transfer terminal from loosening, but also be lifted to the specified height as required for power transfer and then fixed, with high flexibility.

[0010] According to some embodiments of the present invention, the boom includes a plurality of telescopic arms, and each telescopic arm is equipped with the cable electric fixing device.

[0011] According to some embodiments of the present invention, a terminal placement platform is provided at the end of the boom, and the power transfer terminal is arranged on the terminal placement platform.

[0012] According to some embodiments of the present invention, the overhead line and high-voltage cable power transfer device further includes a cable winding and unwinding device, and the power transfer cable can be wound on the cable winding and unwinding device.

[0013] According to some embodiments of the present invention, the clamping assembly includes a first clamp body and a second clamp body that can be adjusted to open and close. A cable clamping space is defined between the first clamp body and the second clamp body, and the rolling support part is arranged between the first clamp body and the second clamp body.

[0014] According to some embodiments of the present invention, the clamping assembly further includes a housing, an installation cavity is arranged inside the housing, the first clamp body and the second clamp body are arranged in the installation cavity, and openings are provided on the opposite side walls of the housing, and the openings are opposite to the cable clamping space.

[0015] According to some embodiments of the present invention, the first clamping body and / or the second clamping body is provided with a clearance groove, and when the first clamping body and the second clamping body are clamped together, the rolling support portion is located in the clearance groove.

[0016] According to some embodiments of the utility model, the electric cable fixing device further comprises:

[0017] A driving mechanism, the driving mechanism is drivingly connected to the clamping assembly and is used to control the opening and closing adjustment of the clamping assembly according to a received control signal;

[0018] A signal input module is connected to the driving mechanism and is used to send the control signal to the driving mechanism.

[0019] According to some embodiments of the present utility model, the driving mechanism comprises:

[0020] An electric push rod connected to the first clamping body or the second clamping body;

[0021] A remote control switch module, connected to the electric push rod, for receiving the control signal and controlling the first clamping body and the second clamping body to open or close according to the control signal;

[0022] A power supply module is connected to the electric push rod and the remote control switch module to provide working power.

[0023] According to some embodiments of the present invention, the signal input module is configured as a remote controller.

[0024] Additional aspects and advantages of the present invention will be partially given in the following description, and some of the additional aspects and advantages will become apparent from the following description, or will be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0026] Figure 1 A structural schematic diagram of a mobile lifting device in a folded state;

[0027] Figure 2 A structural schematic diagram of a mobile lifting device in an unfolded and raised state;

[0028] Figure 3 A working schematic diagram of the utility model;

[0029] Figure 4 This is a structural cross-sectional view of a cable electric fixing device in the utility model;

[0030] Figure 5 Schematic axonometric structure diagram of the cable electric fixing device in the present utility model;

[0031] Figure 6 Schematic structure diagram of a kind of housing of the cable electric fixing device in the present utility model;

[0032] Figure 7 Front view of a kind of housing of the cable electric fixing device in the present utility model;

[0033] Figure 8 Schematic axonometric structure diagram of a kind of second clamp body of the cable electric fixing device in the present utility model;

[0034] Figure 9 Structural sectional view of a kind of second clamp body of the cable electric fixing device in the present utility model;

[0035] Figure 10 Schematic structure diagram of a kind of electric push rod of the cable electric fixing device in the present utility model;

[0036] Figure 11 Schematic diagram of a kind of control principle of the cable electric fixing device in the present utility model.

[0037] In the figure:

[0038] 100 - First clamp body, 101 - Second clamp body, 102 - Cable clamping space;

[0039] 1011 - Relief groove;

[0040] 200 - Housing, 201 - Installation cavity, 202 - Upper shell plate, 203 - Front shell plate, 204 - Lower shell plate, 205 - Rear shell plate, 206 - Slide groove, 207 - Slide block;

[0041] 2041 - Installation hole, 2042 - Guide plate;

[0042] 300 - Driving mechanism, 301 - Electric push rod, 302 - Remote control switch module, 303 - Power supply module;

[0043] 400 - Rolling support part;

[0044] 500 - Arc support part;

[0045] 600 - Signal input module;

[0046] 700 - Mobile lifting equipment, 701 - Boom, 702 - Power transfer cable, 703 - Cable electric fixing device, 704 - Power transfer terminal, 705 - Terminal placement platform, 706 - Connector. Specific implementation mode

[0047] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model, and should not be construed as a limitation to the present utility model.

[0048] In the description of the present utility model, it should be understood that for orientation descriptions, such as up, down, front, back, left, right, etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0049] In the description of the present utility model, the meaning of "several" is more than one, the meaning of "multiple" is more than two, and understandings such as "greater than", "less than", "exceeding", etc. do not include the present number, and understandings such as "above", "below", "within", etc. include the present number. If there is a description of "first", "second", etc., it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0050] In the description of the present utility model, unless otherwise clearly defined, words such as "set", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.

[0051] In the description of the present utility model, the description referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0052] With the development of the national economy, the demand for electricity is increasing continuously. The structure of the overhead transmission system is becoming more and more complex, and its safe operation is particularly important. In the actual operation of overhead transmission lines, faults of overhead transmission lines can be caused by factors such as line aging, improper surrounding engineering construction, settlement of support foundations, and natural disasters, resulting in widespread power outages; or due to the need to relocate and modify the overhead lines for municipal construction and other reasons, the relocation and repair time of overhead lines is long, resulting in long power outage time and wide scope. The cost of using temporary overhead lines to achieve temporary power transmission is relatively high. The nominal height of 220 kV overhead iron towers reaches 18 - 36 m, and there are difficulties such as inconvenient erection and long cycle, and inconvenient connection with temporary cable lines. In the face of the overhead line repair and renovation projects under the background of the above extreme disasters or line relocation and transformation, the transmission operation unit faces a dilemma of long-term power outage or extremely high-cost construction of temporary overhead transmission channels. At present, when problems occur in overhead transmission lines, cable terminal repair and production on iron towers are mostly carried out in the form of temporarily building a platform + crane, etc. First, the power outage time is long and on-site production is required; second, a relatively high platform needs to be built for terminal production, etc., with low safety and low efficiency. In response to this, some existing technologies have proposed some emergency repair solutions that can deal with overhead lines, but due to the self-weight and friction of the cable, it is easy to loosen and be damaged.

[0053] Therefore, the present utility model provides an overhead line and high-voltage cable power transfer device, which can quickly transfer power and restore power supply, and at the same time can prevent the cable from loosening or being damaged.

[0054] Referring to Figures 1 to 4 , an overhead line and high-voltage cable power transfer device according to an embodiment of the present utility model includes a mobile lifting device 700, a power transfer terminal 704, a cable electric fixing device 703, and a power transfer cable 702. Among them, the mobile lifting device 700 is a lifting device with a mobile walking function, and is provided with a boom 701. The power transfer terminal 704 is arranged at the end of the boom 701 and can move to any height within the lifting range of the boom 701 as the boom 701 is lifted. The cable electric fixing device 703 is arranged on the boom 701. The cable electric fixing device 703 is provided with a clamping assembly and a rolling support part 400. The clamping assembly can be electrically opened and closed for adjustment. The clamping assembly defines a cable clamping space. The rolling support part 400 is arranged in the cable clamping space. One end of the power transfer cable 702 is connected to the power transfer terminal 704, and the other end is provided with a joint 706. The power transfer cable 702 can be clamped and fixed on the boom 701 through the clamping assembly.

[0055] In the overhead line and high-voltage cable power transfer device of the present utility model, a mobile lifting device 700 can be quickly moved near an overhead iron tower, and the boom 701 can be lifted to the height required for power connection, so as to connect the power transfer terminal 704 with the overhead line. Then, a temporary power supply is carried out by connecting a power supply line through a power transfer cable 702. At the same time, the power transfer cable 702 is clamped and fixed by a cable electric fixing device 703 arranged on the boom 701, which can prevent the power transfer cable 702 from loosening under the action of gravity after being lifted. And the rolling support part 400 can support the power transfer cable 702, reduce friction, prevent the power transfer cable 702 from being damaged, and avoid loosening caused by friction. The cable electric fixing device 703 is adjusted by electric control opening and closing. During the lifting process, the cable electric fixing device 703 at the outermost end of the boom 701 can be controlled to clamp, while the other cable electric fixing devices 703 distributed along the length direction of the boom 701 are loosened. Thus, when the boom 701 extends and lifts, it can not only prevent the connection between the power transfer cable 702 and the power transfer terminal 704 from loosening, but also be lifted to a specified height as required for power transfer and then fixed, with high flexibility.

[0056] Referring to Figure 1 and Figure 2 , in some embodiments of the present utility model, the boom 701 includes multiple telescopic arms, and the multiple telescopic arms are of a hydraulic telescopic structure. The specific number of telescopic sections, installation form, and hydraulic drive mode can be set with reference to the relevant prior art and will not be described in detail here. In this embodiment of the overhead line and high-voltage cable power transfer device, a cable electric fixing device 703 is installed on each telescopic arm. With the structural arrangement of this embodiment, during the power transfer operation, before the boom 701 extends, the power transfer cable 702 is sequentially passed through all the cable electric fixing devices 703 along the length direction of the boom 701 and connected to the power transfer terminal 704. The cable electric fixing device 703 close to the power transfer terminal 704 is controlled to clamp, while the other cable electric fixing devices 703 are opened. Then, the boom 701 is lifted, and the height of the power transfer terminal 704 to the docking overhead iron tower is controlled. After that, all the cable electric fixing devices 703 are controlled to clamp. With the structural arrangement of this embodiment, when the boom 701 is lifted, it will pull the power transfer cable 702 to move upward. The cable electric fixing device 703 can limit and guide the power transfer cable 702, and at the same time, the rolling support part 400 is used for sliding support, so that the power transfer cable 702 can be smoothly deployed for power connection without loosening of the connection or friction damage.

[0057] Continue to refer to Figures 1 to 2In some embodiments of the utility model, a terminal placement platform 705 is provided at the end of the boom 701, and the power transfer terminal 704 is provided on the terminal placement platform 705. Specifically, the terminal placement platform 705 is vertical or nearly vertical to the boom 701, so that after the boom 701 is lifted, it remains nearly horizontal, and when the boom 701 is in a horizontally retracted state, it remains nearly vertical, which is convenient for power connection and retraction. A lightning arrester and an insulating pull rope are also provided on the terminal placement platform 705. The insulating pull rope is connected between the end of the terminal placement platform 705 and the end of the power transfer terminal 704. In addition, a monitoring component is also provided on the terminal placement platform 705 to monitor the status of the power transfer terminal 704. Its specific composition and setting can be set with reference to the relevant prior art, and will not be described in detail here.

[0058] Reference Figure 1 In some embodiments of the utility model, the overhead line and high-voltage cable transfer equipment further includes a cable retracting device, and the transfer cable 702 can be retracted on the cable retracting device. With the structural setting of this embodiment, the transfer cable 702 can be retracted by the cable retracting device during the transfer and movement process, which is convenient for transportation.

[0059] Reference Figure 4 In some embodiments of the present invention, the clamping assembly includes a first clamping body 100 and a second clamping body 101 that can be opened and closed, and a cable clamping space 102 is defined between the first clamping body 100 and the second clamping body 101; and the rolling support part 400 is arranged in the cable clamping space 102. When applied to laying the transfer cable 702, the transfer cable 702 can pass through the cable clamping space 102, so that the transfer cable 702 can be clamped or loosened by the first clamping body 100 and the second clamping body 101.

[0060] In some embodiments of the present invention, the cable electric fixing device 703 is further provided with a driving mechanism, which is transmission-connected to the clamping assembly and is used to control the opening and closing adjustment of the clamping assembly according to a received control signal.

[0061] The electric cable fixing device 703 in this embodiment can utilize the driving mechanism 300 to automatically control the opening and closing adjustment of the first clamp 100 and the second clamp 101, thereby realizing automatic clamping or loosening of the power transfer cable 702. Workers can perform remote control on the ground or in the control room, which is conducive to achieving safe operation, improving operation efficiency, and reducing the labor intensity of workers.

[0062] Among them, the control signals received by the driving mechanism 300 mainly include an opening signal and a clamping signal. When receiving the opening signal, the driving mechanism 300 controls the first clamping body 100 and the second clamping body 101 to move away from each other. When receiving the clamping signal, the driving mechanism 300 controls the first clamping body 100 and the second clamping body 101 to move closer to each other. Further considering that the diameter specifications of the power transfer cable 702 may be different, the clamping signal can be further divided into multiple clamping stroke signals according to the clamping requirements of different outer diameter specifications. When receiving different clamping stroke signals, the first clamping body 100 and the second clamping body 101 are controlled to move different distances to avoid damaging the power transfer cable 702. Similarly, when installing the power transfer cable 702 and adjusting the power transfer cable 702 in the middle, the opening distances required for the first clamping body 100 and the second clamping body 101 may not be the same. For example, when installing and threading the power transfer cable 702, the first clamping body 100 and the second clamping body 101 need to be opened to the maximum distance. However, when adjusting the position of the power transfer cable 702 in the middle, the first clamping body 100 and the second clamping body 101 only need to loosen the power transfer cable 702 appropriately so that the power transfer cable 702 can be pulled, that is, there is no need to open to the maximum distance. Therefore, the opening signal can also be divided into multiple opening stroke signals according to needs. When the driving mechanism 300 receives different opening stroke signals, it controls the first clamping body 100 and the second clamping body 101 to open to different distances.

[0063] Referring to Figures 4 to 7 , in some embodiments of the present invention, the clamping assembly includes a housing 200, and an installation cavity 201 is provided inside the housing 200. The first clamping body 100 and the second clamping body 101 are both installed in the installation cavity 201. Openings are provided on opposite side walls of the housing 200, and the openings are opposite to the cable clamping space 102. In this embodiment, by providing the housing 200 for installing the first clamping body 100 and the second clamping body 101, it is beneficial to improve the integrity of the structure. The opening on the housing 200 is opposite to the cable clamping space 102, that is, the cable clamping space 102 is exposed through the opening, and the power transfer cable 702 can be threaded through.

[0064] Furthermore, in some embodiments of the present invention, the driving mechanism 300 and the rolling support portion 400 are both installed in the installation cavity 201, that is, the housing 200 covers the clamping assembly, the rolling support portion 400 and the driving mechanism 300, which is beneficial to improve the integrity of the cable electric fixing device 703.

[0065] Referring to Figures 4 to 7Specifically, in some embodiments of the present invention, the housing 200 includes an upper shell plate 202, a lower shell plate 204, a front shell plate 203 and a rear shell plate 205, and the upper shell plate 202, the front shell plate 203, the lower shell plate 204 and the rear shell plate 205 are sequentially connected and enclosed together to form a rectangular installation cavity 201. The right ends of the front shell plate 203 and the rear shell plate 205 are provided with openings, so that the upper shell plate 202 and the lower shell plate 204 protrude to the right relative to the front shell plate 203 and the rear shell plate 205. The first clamp 100 is fixedly connected to the right ends of the upper shell plate 202 and the lower shell plate 204. The second clamp 101 is arranged in the installation cavity 201 to be movable and adjustable left and right. The structural setting of this embodiment uses the first clamp 100 to reinforce the right ends of the upper shell plate 202 and the lower shell plate 204, and uses the notches at the right ends of the front shell plate 203 and the rear shell plate 205 to form an opening to expose the cable clamping space 102. The structure is simple and the material is small, which is conducive to reducing production costs. At the same time, the setting of the rectangular installation cavity 201 is also convenient for guiding the second clamp 101, improving the smoothness of the opening and closing adjustment of the clamping assembly.

[0066] Reference Figure 6 and Figure 7 Furthermore, in some embodiments of the present invention, a slide groove 206 is set in the left-right direction on the front shell plate 203 and the rear shell plate 205, and a slider 207 is set on the front and rear end surfaces of the second clamp 101. The slider 207 is inserted into the slide groove 206 for sliding guidance and limiting the second clamp 101.

[0067] Furthermore, in some embodiments of the present invention, the shell 200 is made of a rectangular profile, that is, the upper shell plate 202, the lower shell plate 204, the front shell plate 203 and the rear shell plate 205 are an integrated structure, which helps to improve the structural strength of the shell 200 and at the same time improve the production efficiency of the cable electric fixing device 703.

[0068] Furthermore, in some embodiments of the present invention, the height of the openings set at the right ends of the front shell plate 203 and the rear shell plate 205 is smaller than the height of the front shell plate 203 and the rear shell plate 205, so that a guide plate 2042 is formed on the front and rear sides of the upper shell plate 202 and the lower shell plate 204, respectively, which is conducive to guiding and limiting when the second clamp 101 approaches the first clamp 100, thereby improving the structural stability.

[0069] Combination Figure 4 The driving mechanism 300 is disposed at one end of the second clamping body 101 away from the first clamping body 100 and is transmission-connected to the second clamping body 101. It is understandable that the housing 200 may also be provided with a left shell plate to cover the driving mechanism 300.

[0070] Reference Figure 4 and Figure 8 , Figure 9In some embodiments of the present utility model, arc-shaped concave positions are provided at the facing ends of the first clamping body 100 and the second clamping body 101, so as to better clamp the power transfer cable 702. Further, the front shell plate 203 and the rear shell plate 205 are provided with inwardly concave arc-shaped side walls corresponding to the left side wall of the opening, so as to improve the integrity of the clamping assembly.

[0071] Referring to Figure 6 , in some embodiments of the present utility model, the lower shell plate 204 is provided with a mounting hole 2041 at the left side position of the first clamping body 100, and the rolling support portion 400 is installed in the mounting hole 2041. Specifically, the rolling support portion 400 is provided with two bull's-eye bearings, and their balls are located at the upper end. In this way, when the power transfer cable 702 is clamped in the cable clamping space 102, it can be rollingly supported by the bull's-eye bearings, which is convenient for the power transfer cable 702 to pass through and move and adjust.

[0072] Referring to Figure 8 and Figure 9 , in some embodiments of the present utility model, a relief groove 1011 is provided at the bottom of the second clamping body 101, and the relief groove 1011 extends leftward from the right end of the bottom of the second clamping body 101, so that when the first clamping body 100 and the second clamping body 101 are clamped, the bull's-eye bearings can be accommodated by the relief groove 1011.

[0073] Referring to Figure 4 and Figure 10 , in some embodiments of the present utility model, the driving mechanism 300 includes an electric push rod 301, a remote control switch module 302 and a power supply module 303. The electric push rod 301 is connected to the end of the second clamping body 101 away from the first clamping body 100; the remote control switch module 302 is connected to the electric push rod 301 and is used to receive control signals and control the first clamping body 100 and the second clamping body 101 to open or clamp according to the control signals; the power supply module 303 is connected to the electric push rod 301 and the remote control switch module 302 and is used to provide working power. Among them, the electric push rod 301 uses a trapezoidal screw rod to lift and retract, with high transmission efficiency, built-in limit switches, which can automatically stop when reaching the maximum stroke, and can stop and self-lock at any position, and can realize the clamping of power transfer cables 702 of different specifications and the opening adjustment of different requirements. Using the power supply module 303 to provide working power for the driving mechanism 300 can realize electric control and solve the deficiencies of traditional manual operation. The power supply module 303 is configured as a rechargeable power supply to extend the service life.

[0074] Considering that during the threading and adjustment of the power transfer cable 702, the power transfer cable 702 needs to move back and forth within the cable clamping space 102, and under the action of gravity, the power transfer cable 702 may abut against the guide plate 2042, causing wear and scratches. Therefore, in some embodiments of the present invention, the clamping assembly further includes an arc-shaped support portion 500. The arc-shaped support portion 500 is arranged at one or both ends of the cable clamping space 102 along the depth direction of the cable clamping space 102 and is located in the bottom area of the cable clamping space 102. In this way, the arc-shaped support portion 500 can support the power transfer cable 702 to prevent the power transfer cable 702 from abutting against the guide plate 2042. And it can be understood that in the case where the guide plate 2042 is not provided, it can also be used to prevent the power transfer cable 702 from abutting against the edge position of the housing 200.

[0075] Refer to Figures 4 to 7 , in some embodiments of the present invention, the arc-shaped support portion 500 is made by welding a round tube outside the guide plate 2042.

[0076] In some embodiments of the present invention, the arc-shaped support portion 500 is a round tube rotatably arranged outside the guide plate 2042. Using the rotatably arranged round tube for support can effectively reduce wear.

[0077] In some embodiments of the present invention, the first clamp body 100 and the second clamp body 101 are made of non-magnetic nylon material.

[0078] Refer to Figure 11 , in some embodiments of the present invention, the cable electric fixing device 703 further includes a signal input module 600. The signal input module 600 is connected to the driving mechanism 300 and is used to send a control signal to the driving mechanism 300. The signal input module 600 can be configured as a remote controller, and a wireless remote control operation is performed by using the remote controller to communicate with the remote control switch module 302. In addition, the signal input module 600 can also be configured for wired remote control and perform a remote control operation in a wired control manner.

[0079] In some embodiments of the present invention, the housing 200 is provided with a plurality of ventilation holes on the lower shell plate 204. The ventilation holes are located below the second clamp body 101 to improve the smoothness of the movement and adjustment of the second clamp body 101.

[0080] Refer to Figures 1 to 11, in some embodiments of the present utility model, the overhead line and high-voltage cable power transfer device includes a mobile lifting device 700, a power transfer terminal 704, a cable electric fixing device 703, and a power transfer cable 702. The mobile lifting device 700 is a lifting device with a mobile walking function, and it is provided with a boom 701. The boom 701 includes multiple telescopic arms, and the multiple telescopic arms are of a hydraulic telescopic structure. A cable electric fixing device 703 is provided on each telescopic arm. A terminal placement platform 705 is provided at the end of the boom 701, and the power transfer terminal 704 is arranged on the terminal placement platform 705. The cable electric fixing device 703 includes a clamping assembly, a driving mechanism 300, a rolling support part 400, an arc support part 500, and a signal input module 600. The clamping assembly is provided with a first clamp body 100, a second clamp body 101, and a housing 200. The housing 200 is made of a rectangular profile, and the housing 200 includes an upper shell plate 202, a lower shell plate 204, a front shell plate 203, and a rear shell plate 205. The upper shell plate 202, the front shell plate 203, the lower shell plate 204, and the rear shell plate 205 are sequentially connected and jointly enclose a rectangular installation cavity 201. Openings are provided at the right ends of the front shell plate 203 and the rear shell plate 205, so that the upper shell plate 202 and the lower shell plate 204 protrude to the right relative to the front shell plate 203 and the rear shell plate 205. The first clamp body 100 is fixedly connected to the right ends of the upper shell plate 202 and the lower shell plate 204. The second clamp body 101 is arranged in the installation cavity 201 in a left-right moving and adjustable manner. Arc-shaped concave positions are provided at the opposite ends of the first clamp body 100 and the second clamp body 101. The lower shell plate 204 is provided with an installation hole 2041 at the left side position of the first clamp body 100, and the rolling support part 400 is installed in the installation hole 2041, specifically including two bull's-eye bearings, and their balls are located at the upper end. The front shell plate 203 and the rear shell plate 205 are provided with chutes 206 in the left-right direction, and sliding blocks 207 are provided on the front and rear end faces of the second clamp body 101, and the sliding blocks 207 are inserted into the chutes 206. The arc support part 500 is arranged at both ends of the cable clamping space 102 along the depth direction of the cable clamping space 102, specifically arranged on the front and rear sides of the upper shell plate 202 and the lower shell plate 204. The arc support part 500 is of a circular tube structure. The driving mechanism 300 is arranged at the end of the second clamp body 101 away from the first clamp body 100. The driving mechanism 300 includes an electric push rod 301, a remote control switch module 302, and a power supply module 303. The electric push rod 301 is connected to the end of the second clamp body 101 away from the first clamp body 100; the remote control switch module 302 is connected to the electric push rod 301 and is used to receive a control signal and control the first clamp body 100 and the second clamp body 101 to open or clamp according to the control signal; the power supply module 303 is connected to the electric push rod 301 and the remote control switch module 302 and is used to provide a working power supply. The signal input module 600 is communicatively connected to the driving mechanism 300 and is used to send a control signal to the driving mechanism 300. The power transfer cable 702 passes through all the cable electric fixing devices 703, one end of which is connected to the power transfer terminal 704, and the other end is provided with a connector 706.During operation, before the boom 701 extends, the rotating electric cable 702 is sequentially passed through all the cable electric fixing devices 703 along the length direction of the boom 701, and the rotating electric terminal 704 is connected. The cable electric fixing device 703 near the rotating electric terminal 704 is controlled by a remote controller to be clamped, while the remaining cable electric fixing devices 703 are opened. Then the boom 701 is lifted, and the rotating electric terminal 704 is controlled to reach the height of the overhead iron tower to be docked. After that, all the cable electric fixing devices 703 are remotely controlled to be clamped.

[0081] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the knowledge scope of those of ordinary skill in the art to which the present utility model pertains, various changes can be made without departing from the purpose of the present utility model. In addition, without conflict, the embodiments of the present utility model and the features in the embodiments can be combined with each other.

Claims

1. An overhead line and high-voltage cable power transfer device, characterized in that include: A mobile lifting device, wherein the mobile lifting device is provided with a boom; A power transfer terminal, the power transfer terminal being arranged at the end of the boom; An electric cable fixing device, the electric cable fixing device is arranged on the boom, the electric cable fixing device is provided with a clamping assembly and a rolling support portion, the clamping assembly can be electrically opened and closed, the clamping assembly defines a cable clamping space, and the rolling support portion is arranged in the cable clamping space; A transfer cable, one end of which is connected to the transfer terminal, and a connector is provided at the other end. The transfer cable can be clamped and fixed on the boom by the clamping assembly.

2. The overhead line and high-voltage cable power transfer equipment according to claim 1, characterized in that The boom comprises a plurality of telescopic arms, and each of the telescopic arms is equipped with the electric cable fixing device.

3. The overhead line and high-voltage cable power transfer device according to claim 1, characterized in that A terminal placement platform is provided at the end of the boom, and the power transfer terminal is provided on the terminal placement platform.

4. The overhead line and high-voltage cable power transfer device according to claim 1, characterized in that The overhead line and high-voltage cable power transfer equipment also includes a cable retracting device, and the power transfer cable can be reeled on the cable retracting device.

5. The overhead line and high-voltage cable power transfer device according to claim 1, wherein The clamping assembly comprises a first clamping body and a second clamping body which can be opened and closed and adjusted, the cable clamping space is defined between the first clamping body and the second clamping body, and the rolling support portion is arranged between the first clamping body and the second clamping body.

6. The overhead line and high-voltage cable power transfer device according to claim 5, characterized in that, The clamping assembly also includes a shell, the interior of the shell is provided with an installation cavity, the first clamp body and the second clamp body are arranged in the installation cavity, and openings are arranged on opposite side walls of the shell, and the openings are opposite to the cable clamping space.

7. The overhead line and high-voltage cable power transfer equipment according to claim 5, characterized in that, The first clamping body and / or the second clamping body are provided with a clearance groove, and when the first clamping body and the second clamping body are clamped together, the rolling support portion is located in the clearance groove.

8. The overhead line and high-voltage cable power transfer device according to claim 5, wherein The electric cable fixing device also includes: A driving mechanism, the driving mechanism is drivingly connected to the clamping assembly and is used to control the opening and closing adjustment of the clamping assembly according to a received control signal; A signal input module is connected to the driving mechanism and is used to send the control signal to the driving mechanism.

9. The overhead line and high-voltage cable power transfer device according to claim 8, characterized in that, The driving mechanism comprises: An electric push rod connected to the first clamping body or the second clamping body; A remote control switch module, connected to the electric push rod, for receiving the control signal and controlling the first clamping body and the second clamping body to open or close according to the control signal; A power supply module is connected to the electric push rod and the remote control switch module to provide working power.

10. The overhead line and high-voltage cable power transfer device according to claim 8, characterized in that, The signal input module is configured as a remote controller.

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