Electric drive rigid spacer for two split conductors

Abstract

The invention discloses an electrically-driven rigid spacer on a two-split conductor, and the spacer comprises a spacer body which is provided with a connecting part and hook body parts located at the two ends of the connecting part, and the hook body parts and the connecting part are integrated or connected through a fastener; the two movable clamping blocks are respectively arranged in the two hook body parts and move in the hook body parts under the constraint of the hook body parts; the two lead screws are in threaded connection or pivotal connection with the movable clamping blocks and enable the movable clamping blocks to move in the hook body part through rotation; the motor is in transmission connection with the lead screw directly or indirectly through a transmission pair, so that the lead screw rotates to drive the movable clamping block to move in the hook body part, and the movable clamping block is matched with the hook body part so as to clamp or loosen the sub-conductor; and the motor is directly or indirectly arranged on the connecting part. According to the spacer, clamping or loosening of the sub-conductors can be achieved through electric driving, operation is easy and convenient, efficiency is high, and the structure is stable and reliable.

Description

Technical Field

[0001] The present invention relates to the technical field of angle iron connectors, and particularly to an electrically driven rigid spacer for a two - split conductor on a high - voltage transmission line. Background Art

[0002] A split conductor refers to a conductor erection method adopted for high - voltage or extra - high - voltage transmission lines to suppress corona discharge and reduce line reactance. That is, each phase conductor consists of several smaller - diameter sub - conductors, and the groups of sub - conductors are spaced at a certain distance. A two - split conductor refers to a split conductor composed of two sub - conductors, which is usually applied to transmission lines with a voltage level of 220 kV.

[0003] Since the two sub - conductors of a two - split conductor are very close to each other, they often vibrate under the influence of wind. Under special meteorological conditions and topographical features, the conductor will have rare large - amplitude jumps, commonly known as galloping, which can cause conductor short - circuiting, air insulation breakdown, and in severe cases, damage to line insulators, fittings, cross - arms or tower components. Therefore, a spacer must be used to separate the sub - conductors of a two - split conductor to suppress the mutual galloping between the sub - conductors.

[0004] Traditional spacers mostly adopt mechanical locking or manual adjustment methods, which require manual high - altitude operations to install on the two - split conductor. Manual high - altitude operations have great safety hazards and require power outage operations, which have a large impact. Even without manual high - altitude operations, robots are needed for installation. For example, Chinese Patent No. CN119050895A discloses a two - split spacer installation robot and its on - line method on November 29, 2024, which uses a special robot for installation, and when installing, a drone is also needed to hoist the robot onto the two - split conductor. Whether these installation methods are manned or robotic, they all require power outage operations, resulting in a relatively large impact. Therefore, there is an urgent need for a two - split spacer that can perform unmanned high - altitude operations and install without power outage. Summary of the Invention

[0005] The present invention provides an electrically driven rigid spacer for a two - split conductor. This spacer can clamp or release the sub - conductors through electric drive, with simple operation, high efficiency, and stable and reliable structure.

[0006] According to a first aspect, in one embodiment, an electrically driven rigid spacer for a two - split conductor is provided, including:

[0007] A spacer body having a connecting portion and hook body portions located at both ends of the connecting portion. The hook body portions are integrally formed with the connecting portion or connected by fasteners;

[0008] Two movable clamping blocks, which are respectively placed in the two hook body portions and move under the restraint of the hook body portions in the hook body portions;

[0009] There are two lead screws, which are threadedly connected or pivotally connected to the movable clamping block, and the movable clamping block is moved within the hook body part by rotation; and

[0010] There is one or two motors, which are directly or indirectly drivingly connected to the lead screw through a transmission pair, causing the lead screw to rotate, driving the movable clamping block to move within the hook body part, and cooperating with the hook body part to clamp or release the sub-conductor;

[0011] The motor is directly or indirectly arranged on the connecting part.

[0012] In some embodiments, the hook body part has a hook bending groove or a fork bending groove. Correspondingly, the movable clamping block is also provided with a fork bending groove or a hook bending groove.

[0013] In some embodiments, a cushion block is arranged in the hook bending groove and the fork bending groove. The cushion block is made of a polymer material, and the cushion block has a cable groove.

[0014] In some embodiments, the transmission pair is one or a combination of a worm and worm gear pair, a gear pair, a screw pair, and a sliding pair.

[0015] In some embodiments, the motor is a reduction motor or a corner motor with a reduction gear head.

[0016] In some embodiments, a motor protective cover is covered on the motor. The motor protective cover is made of metal and covers all of the motor and its output shaft.

[0017] In some embodiments, a magnetic attraction power supply connector is arranged on the motor protective cover, and the magnetic attraction power supply connector is electrically connected.

[0018] In some embodiments, a lifting point is arranged on the connecting part or the motor protective cover.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. The present invention adopts a motor to drive the lead screw to rotate, and then drives the movable clamping block to move within the hook body part to realize the clamping and loosening of the sub-conductor. This design greatly improves the operation convenience and efficiency of the spacer.

[0021] 2. The spacer body of the present invention is made of a rigid material. Since the distance between the two split conductors is very small, it can ensure sufficient rigidity and stability when clamping the sub-conductor. Description of the Drawings

[0022] Figure 1 It is a three-dimensional structural schematic diagram of Embodiment 1;

[0023] Figure 2 It is a sectional structural schematic diagram of Embodiment 1;

[0024] Figure 3 Schematic diagram of the three-dimensional structure of the second embodiment;

[0025] Figure 4 Schematic diagram of the sectional structure of the second embodiment;

[0026] Figure 5 Schematic diagram of the three-dimensional structure of the third embodiment;

[0027] Figure 6 Schematic diagram of the three-dimensional structure after the motor of the third embodiment is separated;

[0028] Figure 7 Schematic diagram of the sectional structure without the motor of the third embodiment;

[0029] Figure 8 Schematic diagram of the sectional structure with the motor of the third embodiment.

[0030] In the figure: 1, spacer bar body; 2, connecting part; 3, hook body part; 4, fork bending groove; 5, movable clamping block; 6, hook bending groove; 7, lead screw; 7, motor; 9, motor protection cover; 10, magnetic adsorption type power interface; 11, coupling; 12, cushion block; 13, lifting point; 14, disassembly fixing plate; 15, micro electric push rod; 16, worm; 17; turbine; 18; long shaft; 19, driving gear; 20, driven gear. Specific embodiments

[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings through specific embodiments. Similar elements in different embodiments are labeled with related similar element numbers. In the following embodiments, many details are described to make the present application better understood. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, and methods. In some cases, some operations related to the present application are not shown or described in the specification, which is to avoid the core part of the present application being overwhelmed by excessive description. For those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations according to the description in the specification and the general technical knowledge in the art.

[0032] In addition, the features, operations, or characteristics described in the specification can be combined in any appropriate manner to form various embodiments. At the same time, the steps or actions in the method description can also be reordered or adjusted in an obvious manner by those skilled in the art. Therefore, the various sequences in the specification and drawings are only for clearly describing a certain embodiment, and do not mean that they are the necessary sequences, unless it is stated that a certain sequence must be followed.

[0033] The serial numbers assigned to the components in this text itself, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meaning. And the "connection" and "coupling" mentioned in this application, unless otherwise specified, both include direct and indirect connection (coupling).

[0034] Embodiment 1:

[0035] Please refer to Figure 1 and Figure 2 In one embodiment, an electric drive rigid spacer on a two-split conductor is provided, including a spacer body 1. The spacer body 1 includes a connecting portion 2 and a hook body portion 3, and the connecting portion 2 and the hook body portion 3 are separately provided. The connecting portion 2 is in an I shape, and the I-shaped connecting portion 2 has reinforcing rib plates; the hook body portion 3 is also in an I shape, and one end has a fork bending groove 4. The fork bending groove 4 is like a fork relative to the connecting portion 3 and is called the fork bending groove 4; both ends of the connecting portion 3 are connected to one end of two hook body portions 4 having fork bending grooves 4 through fasteners to form the spacer body 1.

[0036] A motor protection cover 9 is provided on the connecting portion 2 of the spacer body 1. The motor protection cover 9 is in the shape of a rectangular box. The motor protection cover 9 is arranged on the side opposite to the rib plate of the connecting portion 2. A motor 8 is arranged inside the motor protection cover 9. The motor 8 is a double-output head angle motor, and the driving voltage is 12V or 14V. The angle motor is self-equipped with a reducer, and the reducer has a double-head output, that is, a right-angle T-shaped double-output shaft 90° angle reducer. A magnetic adsorption power interface 10 is provided on the motor protection cover 9. The magnetic adsorption power interface 10 is connected to the motor 8 inside the motor protection cover 9, and the motor 8 is powered through the magnetic adsorption power interface 10. Except for the output shaft, all other parts of the motor protection cover 9 are covered. The motor protection cover 9 is made of metal, such as made of stainless steel with a thickness of 1 mm, so that the motor protection cover 9 forms a Faraday cage, enabling the spacer of the present invention to avoid the motor 8 being in the electric field of the two-split conductor during installation and use, that is, the motor 8 is not affected by the electric field of the two-split conductor and can work normally.

[0037] The electrode protection cover 9 on the connecting portion 2 of the spacer body 1 is arranged in the middle of the connecting portion 2. The connecting portions 2 on both sides of the motor protection cover 9 are the suspension points 13 of the electric drive rigid spacer on a two-split conductor in this embodiment, and the suspension points 13 can be connected by a suspension rope or other lifting tools for hoisting operations.

[0038] Each output head of the motor 8 is connected to a lead screw 7 through a coupling 11. The other end of the lead screw 7 is arranged at one end of the hook head 3 without the fork bending groove 4. The lead screw 7 can rotate around its own axis and pass through the connecting part between the connecting part 2 and the hook head 3. The lead screw 7 is threadedly connected with a movable clamp block 5 in the hook head 3. A hook bending groove 6 is arranged on the movable clamp block 5. The hook bending groove 6 is like a hook relative to the connecting part 2 and is called the hook bending groove 6.

[0039] The hook head 3 is provided with a guide hole. The movable clamp block 5 has a convex tongue-shaped slider. The convex tongue-shaped slider of the movable clamp block 5 is placed in the guide hole of the hook head 3 to enable the movable clamp block 5 to be restricted in its movement by the hook body part 3.

[0040] A spacer 12 is arranged in the fork bending groove 4 of the hook head 3 and the hook bending groove 6 of the movable clamp block 5. The spacer 12 is made of an insulating polymer material, such as insulating hard rubber. A cable groove is arranged on the spacer 12. When clamping the two-split conductor, the conductor is located in the cable groove.

[0041] When using an electric drive rigid spacer on a two-split conductor in this embodiment, it can be hoisted into the air by a hoisting device. The two hook bodies are respectively abutted against the two sub-conductors of the double-split conductor. The motor is powered on to make the motor rotate. The movable clamp block is driven by the lead screw to move towards the fork bending groove of the hook body part, clamp and tighten the sub-conductor, and then an electric drive rigid spacer on a two-split conductor in this embodiment can be installed on the two-split conductor.

[0042] When using an electric drive rigid spacer on a two-split conductor in this embodiment, the hoisting device can be a crane, a drone or other devices. During hoisting, an electric wire with a magnetic attraction power interface is magnetically attracted and connected to the magnetic attraction power interface on the motor protective cover of an electric drive rigid spacer on a two-split conductor in this embodiment to supply power to the motor. After an electric drive rigid spacer on a two-split conductor in this embodiment is clamped on the double-split conductor, the magnetic attraction power interface can be separated by pulling.

[0043] Embodiment 2:

[0044] Please refer to Figure 3 and Figure 4In one embodiment, an electrically driven rigid spacer on a two-split conductor is provided, including a spacer body 1, wherein the spacer body 1 has a connecting portion 2 and a hook head 3, wherein the connecting portion 2 is a connecting plate, and one or two ribs are arranged on the lower surface, so that the connecting portion 2 is T-shaped or π-shaped, and the hook head 3 is I-shaped, and the connecting portion 2 and the hook head 3 are arranged integrally. A lifting ring is arranged in the middle of the connecting portion 2, which is used as a lifting point 13 of an electrically driven rigid spacer on a two-split conductor of this embodiment. When hoisting, it is connected to the lifting ring with a lifting rope or other lifting tools. The portion of the hook head 3 connected to the connecting portion 2 has a fork bending groove 4, which is like a fork relative to the connecting portion 2 and is called a fork bending groove 4.

[0045] The spacer body 1 is provided with a motor fixing plate at the position where the connecting part 2 and the hook head 3 are connected. The motor fixing plate is provided with a motor protective cover 9 shaped like a rectangular box. A motor 8 is arranged in the motor protective cover 9. The motor 8 is an angle motor, specifically a 90° angle motor, with a driving voltage of 12V or 14V, and has a reducer. A magnetic power supply interface 10 is provided on the motor protective cover 9, and the magnetic power supply interface 10 is connected to the motor 8 in the motor protective cover 9, and the motor 8 is powered by the magnetic power supply interface 10. Except for the output shaft, all other parts of the motor protective cover 9 are covered. The motor protective cover 9 is made of metal, such as stainless steel with a thickness of 1.2 mm, so that the motor protective cover 9 constitutes a Faraday cage, so that when the spacer of the present invention is installed and used, the motor 8 is prevented from being in the electric field of the two-split conductor, that is, the motor 8 is not affected by the electric field of the two-split conductor and can work normally.

[0046] The motor 8 is connected to a lead screw 7 via a coupling 11 , and bearings are provided at both ends of the I-shaped hook head 3 , and the lead screw 7 is passed through the two bearings.

[0047] The movable clamping block 5 is passed through the lead screw 7 and is located in the hook head 3 . A hook bending groove 6 is provided on the movable clamping block 5 . The hook bending groove 6 is like a hook relative to the connecting part 2 and is called the hook bending groove 6 .

[0048] The hook head portion 3 is provided with a guide hole, and the movable clamping block 5 is provided with a tongue-shaped slider. The tongue-shaped slider of the movable clamping block 5 is placed in the guide hole of the hook head portion 3, so that the movable clamping block 5 can be moved by being restrained by the hook body portion 3.

[0049] A pad 12 is arranged in the fork bend groove 4 of the hook head 3 and the hook bend groove 6 of the movable clamp 5. The pad 12 is made of insulating polymer material, such as insulating hard rubber. A cable groove is arranged on the pad 12. When clamping the two-split wires, the wires are located in the cable groove.

[0050] An electrically driven rigid spacer on a two-split conductor in this embodiment is centrosymmetric with a rotation of 180° with the sling on the spacer body 1 as the symmetry point.

[0051] An electrically driven rigid spacer on a two-split conductor in this embodiment, when in use, can be hoisted into the air by a hoisting device. The hook heads at both ends of the spacer body are leaned against the two sub-conductors of the double-split conductor, and then, depending on the situation, the two motors are energized successively or simultaneously. The motors are rotated, and the movable clamping block is driven by the lead screw to move towards the fork-shaped groove of the hook body part, clamping and tightening the sub-conductor to complete the installation.

[0052] A double-split spacer with electrically driven ends in the present invention, when in use, the hoisting device can be a crane, a drone, etc. During hoisting, a wire with two magnetic attraction power interfaces is magnetically attracted and connected to the magnetic attraction power interfaces on the two motor protective covers of a double-split spacer with electrically driven ends in the present invention to supply power to the motors. After the double-split spacer with electrically driven ends in the present invention is clamped on the double-split conductor, the magnetic attraction power interfaces can be separated by pulling.

[0053] Embodiment Three:

[0054] Please refer to Figure 5 、 Figure 6 and Figure 7 , in an embodiment, an electrically driven rigid spacer on a two-split conductor is provided, including a spacer body 1. The spacer body 1 includes a connecting part 2 and a hook head part 3. The connecting part 2 and the hook head part 3 are separately arranged. The connecting part 2 is in a frame shape with connecting plates at both ends. The outer side surface of the connecting plate has a groove. The hook head part 3 is J-shaped with a head connecting plate. The outer side of the head connecting plate of the J-shaped hook head part 3 also has a groove. The hook head part 3 is fixedly connected to both ends of the connecting part through fasteners. After the hook head part 3 is connected to the connecting part 2, the grooves in the middle of the connecting part enclose a cavity.

[0055] A worm and worm gear sub-assembly is arranged inside the connecting part 2. The worm and worm gear sub-assembly includes a worm wheel 17, a worm 16, a long shaft 18, and a transmission gear 19. The worm wheel 17 is arranged on the long shaft 18. Transmission gears 19 are respectively arranged at both ends of the long shaft 18. The worm 16 and the long shaft 18 are vertically and staggeredly arranged on the worm wheel 17, and the worm 16 and the worm wheel 17 are engaged. One end of the worm 16 penetrates out of the side surface of the connecting part 2, and the penetrated end has a regular polygon columnar head for connecting to a power device. The transmission gears 19 on the long shaft 18 are arranged in the cavity.

[0056] An active clamping block 5 is arranged inside the hook head portion 3. One end of the active clamping block 5 is connected to a lead screw 7. A driven gear 20 is helically connected to the lead screw 7. The driven gear 20 is arranged in a cavity and meshes with a driving gear 29.

[0057] The hook head portion 3 is in sliding contact with the active clamping block 5 in a plane. During the movement of the active clamping block 5, it is restricted by the mutually contacting planes, preventing the active clamping block 5 from rotating relative to the hook head portion 3.

[0058] The hook head portion 3 has a hook bending groove 6. The hook bending groove 6 is like a hook relative to the connecting portion 2 and is called the hook bending groove 6. The active clamping block 5 has a fork bending groove 4. The fork bending groove 4 is like a fork relative to the connecting portion 2 and is called the fork bending groove 4. Insulating pads 12 are arranged in the hook bending groove 6 and the fork bending groove 4. The pads 12 are made of insulating polymer materials, such as insulating hard rubber. Cable grooves are arranged on the pads 12. When clamping a two-split conductor, the conductor is located in the cable grooves.

[0059] In this embodiment, for the electric drive rigid spacer on the two-split conductor, the lead screws 7 located inside the hook head portions 3 at both ends are reverse threads.

[0060] A disassembly and assembly fixing plate 14 is arranged on one side of the connecting portion 2 where the worm 16 passes through the connecting portion 2.

[0061] The power device is detachably arranged on the disassembly and assembly fixing plate 14.

[0062] The power device includes a motor protective cover 9, a motor 8, a socket wrench, and four micro electric push rods 15. The micro electric push rods 15 are IP60 micro electric push rods, and the power supply voltage is 12V or 24V. The extended length of the micro electric push rod 15 is. The micro electric push rods 15 are arranged at the bottom of the motor protective cover 9. The connection and separation between the power device and the disassembly and assembly fixing plate 14 are realized through the telescoping of the micro electric push rods 15. The voltage of the motor 8 is 12V or 24V. A socket wrench is connected to the output shaft of the motor 8. The motor 8 is fixed inside the motor protective cover 9. The socket wrench is sleeved on the regular polygon columnar head at one end of the worm 16 extending out of the connecting portion to drive the worm 16 to rotate.

[0063] A handle is arranged on the motor protective cover 9. The handle serves as a lifting point 13 for the electric drive rigid spacer on the two-split conductor in this embodiment. During hoisting, a lifting rope or other lifting tools are connected to the lifting ring.

[0064] An electric-driven rigid spacer on a two-split conductor in this embodiment. After the motor 8 is powered on and rotates, the worm 16 rotates, driving the turbine 17. The turbine 17 drives the long shaft 18 to rotate. The transmission gear 19 on the long shaft 18 drives the driven gear 20 to rotate, thereby making the lead screw 7 rotate, and further moving the movable clamp block 5 to achieve clamping or loosening.

[0065] In an electric-driven rigid spacer on a two-split conductor in this embodiment, the worm and gear pair is a self-locking worm and gear pair, which has a self-locking function and can effectively prevent the movable clamp block from loosening after clamping.

[0066] An electric-driven rigid spacer on a two-split conductor in this embodiment has a separable power device. In this way, it can be lifted into the air by a lifting device and installed remotely, realizing unmanned aerial installation. The lifting device can be a crane, a drone, etc. Especially after using a drone, live working can be achieved, eliminating a series of problems caused by manned aerial work. After the unmanned aerial installation is completed, the power device is separated, and the remaining parts are installed on the two-split conductor as a spacer for long-term use.

[0067] The above uses specific examples to elaborate on the present invention, which is only used to help understand the present invention and is not intended to limit the present invention. For those skilled in the technical field to which the present invention belongs, based on the idea of the present invention, several simple deductions, deformations or substitutions can also be made.

Claims

1. Electrically driven rigid spacer on a two-split conductor, characterized in that Comprising: Spacer bar body, having a connecting portion and hook body portions located at both ends of the connecting portion, the hook body portions being integrally formed with the connecting portion or connected by fasteners; Movable clamping blocks, there are two, respectively placed inside the two hook body portions, and moving under the restraint of the hook body portions inside the hook body portions; Lead screws, there are two, threadedly connected or pivotally connected to the movable clamping blocks; and Motors, there is one or two, directly or indirectly drivingly connected to the lead screws through a transmission pair; The motor is directly or indirectly arranged on the connecting portion.

2. The electric drive rigid spacer on the two-split conductor according to claim 1, characterized in that: The hook body portions are provided with hook bending grooves or fork bending grooves, correspondingly, the movable clamping blocks are also provided with fork bending grooves or hook bending grooves.

3. The electrically driven rigid spacer on the two-split conductor according to claim 2, characterized in that: Padding blocks are arranged in the hook bending grooves and fork bending grooves, the padding blocks are made of polymer materials, and the padding blocks are provided with cable grooves.

4. The electric drive rigid spacer on the two-split conductor according to claim 1, characterized in that: The transmission pair is one or a combination of a worm and worm gear pair, a gear pair, a screw pair, and a sliding pair.

5. The electric drive rigid spacer on the two-split conductor according to claim 1, characterized in that: The motor is a reduction motor with a reduction gear head or a rotary angle motor.

6. The electric drive rigid spacer on the two-split conductor according to claim 5, characterized in that: A motor protective cover is covered on the motor, and the motor protective cover is made of metal.

7. The electrically-driven rigid spacer on the two-split conductor according to claim 6, characterized in that: A magnetic attraction power supply connector is arranged on the motor protective cover, and the magnetic attraction power supply connector is electrically connected.

8. The electric drive rigid spacer on the two-split conductor according to claim 1, characterized in that: A lifting point is arranged on the connecting portion or the motor protective cover.

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