Automatic separation device for electric tower moving base

Abstract

The invention discloses an electric tower movement base automatic separation device which comprises a fixing mechanism and a matching mechanism connected with the fixing mechanism in a matched mode, and the fixing mechanism comprises a fixing plate and an electromagnet arranged on the fixing plate; the fixing plate is used for forming a bearing base with the matching mechanism, the electromagnet is connected with the matching mechanism, and the electromagnet is used for controlling connection with the matching mechanism by controlling supply of electric quantity; the matching mechanism comprises a matching plate and an armature arranged on the matching plate; the matching plate and the bearing base are the same in horizontal height, and the armature is used for being connected with the electromagnet in a matched mode. The separation process is obviously simplified. The method further has the advantages that safety and efficiency of electric tower operation are improved, accident risks caused by manual operation are reduced, and quick response can be achieved especially in an emergency separation scene.

Description

Technical Field

[0001] This invention relates to the field of moving bases for power towers, and more particularly to an automatic separation device for moving bases for power towers. Background Technology

[0002] In modern power infrastructure, to expand the functionality of power towers, movable bases are often installed on the lugs at higher positions on the towers, and various auxiliary mechanical structures are connected to these movable bases. These movable bases provide a basic platform for the mounting of subsequent equipment and the realization of specific functions, such as the mounting of monitoring equipment, the installation of drone charging points, or the installation of maintenance robotic arms.

[0003] However, power towers are generally characterized by their great height, making the working environment at their top particularly harsh and dangerous. When it is necessary to repair, replace, or recycle these moving bases installed at high altitudes, traditional dismantling methods mainly rely on personnel climbing to the top of the tower for manual operation. This purely manual dismantling method is not only inefficient and extremely physically demanding, but also poses significant safety risks associated with working at height. The implementation process is also subject to weather conditions, and the difficulty increases exponentially with the height of the tower, especially on ultra-high-rise power towers such as ultra-high-voltage transmission lines, where the problems are particularly prominent.

[0004] Currently, there is a lack of technical solutions in the market for this specific need—the safe and efficient remote separation of moving bases from the lugs of high-altitude power towers. While large machinery (such as specialized aerial work platforms or cranes) can be used to assist, their applicability is severely limited by factors such as terrain accessibility, high costs, and potential interference with the tower structure or operating lines. The shortcomings of existing technologies make the dismantling of moving bases, especially those in high-risk locations, a bottleneck affecting maintenance efficiency and safety.

[0005] Therefore, it is necessary to improve an existing automatic separation device for the moving base of an electric tower in order to solve the above problems. Summary of the Invention

[0006] This invention overcomes the shortcomings of the prior art and provides an automatic separation device for the moving base of an electric tower, aiming to solve the problems in the prior art.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows: an automatic separation device for a moving base of an electric tower, comprising: a fixing mechanism, and a cooperating mechanism connected to the fixing mechanism.

[0008] The fixing mechanism includes a fixing plate and an electromagnet mounted on the fixing plate; the fixing plate is used to form a supporting base with the cooperating mechanism, and the electromagnet is connected to the cooperating mechanism. The electromagnet is used to control the connection with the cooperating mechanism by controlling the supply of electrical power.

[0009] The mating mechanism includes a mating plate and an armature disposed on the mating plate; the mating plate and the receiving base are at the same horizontal height, and the armature is used to mate with the electromagnet.

[0010] In a preferred embodiment of the present invention, the mating plate is L-shaped and reinforced plates are provided on both sides of the mating plate.

[0011] In a preferred embodiment of the present invention, a first fixing hole and a second fixing hole are respectively provided on the horizontal plane and the vertical plane of the mating plate.

[0012] In a preferred embodiment of the present invention, the first fixing hole is vertically formed and is formed on the horizontal plane of the mating plate.

[0013] In a preferred embodiment of the present invention, the second fixing hole is formed around the center of the vertical plane of the mating plate.

[0014] In a preferred embodiment of the present invention, the armature is arranged in the form of a T-shaped cylinder, with the two ends of the armature located on both sides of the vertical surface of the mating plate, and the armature is fixedly connected to the second fixing hole on the mating plate by bolts.

[0015] In a preferred embodiment of the present invention, the fixing plate and the mating plate are similar, both adopting an L-shaped configuration and having the same specifications, and both are provided with reinforcing plates on the sides.

[0016] In a preferred embodiment of the present invention, the electromagnet is fixedly connected to the center of the vertical side of the fixing plate, and the electromagnet is used to control the merging and separation of the armature by controlling the on and off of the power.

[0017] In a preferred embodiment of the present invention, the centers of the electromagnet and the armature are located on the same axis, and the electromagnet controls the stepwise merging and separation between the electromagnet and the armature by stepwise current feeding and discharging.

[0018] This invention addresses the shortcomings of the prior art and has the following beneficial effects:

[0019] (1) This invention provides an automatic separation device for the moving base of an electric tower. The electromagnet and the armature are coaxially arranged. A low voltage is initially applied to generate a weak magnetic field. The voltage is then gradually increased to a peak value. Through the weak magnetic field stage, the armature is adaptively fine-tuned in the vibration environment to avoid instantaneous displacement caused by rigid collision. As the magnetic field strength increases, a strong axial magnetic attraction force is formed, which forcibly pulls the armature back to its original position, ensuring that the moving base achieves precise alignment when fully merged. The bearing surface remains horizontal and stable, providing a zero-tilt reference platform, which facilitates the accurate operation of the mounted equipment, i.e., monitoring instruments. Compared with the prior art, the traditional solution of directly switching the electromagnet on and off often leads to instantaneous impact and positional deviation, lacking adaptability. In high-frequency wind environments, the repositioning process generates a low-frequency displacement of 0.5–3 Hz, which avoids external excitation from a physical perspective, suppresses the vibration amplitude within the safe threshold, and greatly improves the reliability and service life of the equipment under harsh conditions.

[0020] (2) The present invention provides an automatic separation device for the moving base of a power tower. The control is achieved by gradually reducing the voltage in a stepwise manner. That is, the current of the electromagnet gradually decreases from the full voltage state. With the help of the T-shaped armature structure and the stepwise attenuation interval, the magnetic force is softened and the armature is stuck together in the strong magnetic stage to avoid the armature from suddenly losing its attraction and bouncing. In the middle section, the weak magnetic state works with the armature structure to absorb vibration energy and constrain the displacement trajectory. Compared with the existing technology, the conventional direct power-off method is prone to swinging and inertial vibration, which increases the risk of high-altitude components falling. Therefore, in the case of wind power tower, the stepwise voltage reduction suppresses vibration inertia and eliminates electromagnetic residual magnetism, ensuring that the components return to their stable position after separation, greatly reducing the risk factor of operation, and is suitable for high-altitude operation environments with frequent disassembly.

[0021] (3) This invention provides an automatic separation device for the moving base of a power tower. Through bidirectional stepped control voltage operation, the gradual process of merging from weak to strong magnetic field and the symmetrical operation of separating from strong to weak magnetic field form a frequency misalignment barrier, so that the inherent frequency displacement is actively limited to the low frequency range of 0.5-3Hz, avoiding the common wind-load disturbance frequency band of 4-6Hz for power towers. The energy transfer is attenuated through the misalignment mechanism, which significantly suppresses the resonance phenomenon. The vibration amplitude of the moving base under strong wind is controllable, maintaining operational stability. Compared with the existing technology, the existing solution lacks a frequency band separation mechanism and is prone to resonance under external wind excitation, leading to equipment damage. This invention enables the active attenuation of vibration amplitude in the testing of coastal high-voltage transmission towers, improves overall safety, and provides a general solution for similar high-frequency disturbance environments. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0023] Figure 1 This is a perspective structural diagram of a preferred embodiment of the present invention;

[0024] Figure 2This is a schematic diagram of the overall structure in a separated state according to a preferred embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram showing the overall structure of a preferred embodiment of the present invention.

[0026] In the diagram: 1. Fixing mechanism; 2. Matching mechanism; 3. Matching plate; 4. Fixing plate; 5. Armature; 6. Electromagnet. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams, which are only used to illustrate the basic structure of the present invention and therefore only show the components relevant to the present invention.

[0028] This utility model is used to install a moving base on the lugs of a power tower, thereby connecting other mechanical structures on the moving base to achieve more functions. However, power towers are generally quite tall, especially at the top, and it would be very difficult to disassemble the moving base manually. Therefore, an automatic separation device for the moving base of a power tower is designed.

[0029] As shown in the figure, an automatic separation device for a moving base of an electric tower includes: a fixing mechanism 1, and a cooperating mechanism 2 that is connected to the fixing mechanism 1.

[0030] The fixing mechanism 1 includes a fixing plate 4 and an electromagnet 6 disposed on the fixing plate 4; the fixing plate 4 is used to form a bearing base with the cooperating mechanism 2, and the electromagnet 6 is connected to the cooperating mechanism 2. The electromagnet 6 is used to control the connection with the cooperating mechanism 2 by controlling the supply of electrical power.

[0031] The mating mechanism 2 includes a mating plate and an armature 5 disposed on the mating plate 3; the mating plate 3 and the receiving base are at the same horizontal height, and the armature 5 is used to mate with the electromagnet 6.

[0032] It should be noted that this utility model provides an automatic separation device for the moving base of an electric tower. A mating plate 3 is bolted to the armature 5, and an electromagnet 6 is bolted to the fixing plate 4. When the electromagnet 6 is powered, it magnetically attracts the armature 5. The upper parts of the mating plate 3 and the fixing plate 4 can connect to the moving base, so when the electromagnet 6 and armature 5 are attracted, the moving base will automatically assemble. When the operation is completed, the power to the electromagnet is turned off, the magnetic force of the electromagnet 6 disappears, the electromagnet 6 separates from the armature 5, and the moving base automatically separates. This achieves the automatic separation function of the moving base.

[0033] The mating mechanism 2 includes a mating plate and an armature 5 disposed on the mating plate 3; the mating plate 3 and the receiving base are at the same horizontal height, and the armature 5 is used to mate with the electromagnet 6.

[0034] In this invention, the mating plate 3 is L-shaped, and reinforcing plates are provided on both sides of the mating plate 3. A first fixing hole and a second fixing hole are respectively provided on the horizontal plane and the vertical plane of the mating plate 3. The first fixing hole is vertically located on the horizontal plane of the mating plate 3. The second fixing hole is located around the center of the vertical plane of the mating plate 3. The armature 5 is a T-shaped cylinder, with its two ends located on both sides of the vertical plane of the mating plate 3. The armature 5 is fixedly connected to the second fixing hole on the mating plate 3 by bolts.

[0035] It should be noted that the mating plate 3 is L-shaped, comprising a vertical plane and a horizontal plane. Four second fixing holes are provided on the vertical plane, arranged in a circle around the center of the vertical plane of the mating plate 3. These holes are used for fixing the armature 5. The armature 5 is T-shaped, divided into a larger diameter portion and a smaller diameter portion. The armature 5 is positioned at the center of the vertical plane of the mating plate 3, thus its two ends are located on opposite sides of the vertical plane of the mating plate 3. A threaded hole is provided in the larger diameter portion of the armature 5. Bolts are passed through the second fixing holes and engage with the threaded holes to fix the mating plate 3 and the armature 5. Reinforcing plates are provided on both sides of the mating plate 3, arranged in a triangular pattern to enhance the load-bearing capacity of the mating plate 3 and prevent bending when bearing heavy structures. The first fixing holes are located on the horizontal plane of the mating plate 3 and arranged in a vertical array, forming a support base to support the remaining mechanical structures, which are not fixedly connected through the first fixing holes.

[0036] The fixing mechanism 1 includes a fixing plate 4 and an electromagnet 6 disposed on the fixing plate 4; the fixing plate 4 is used to form a bearing base with the cooperating mechanism 2, and the electromagnet 6 is connected to the cooperating mechanism 2. The electromagnet 6 is used to control the connection with the cooperating mechanism 2 by controlling the supply of electrical power.

[0037] In this invention, the fixing plate 4 and the mating plate 3 are similar in structure, both adopting an L-shape and having the same specifications, with reinforcing plates on their sides. The fixing plate 4 also has connecting holes on its horizontal side, identical to the first fixing hole. The electromagnet 6 is fixedly connected to the center of the vertical side of the fixing plate 4. The electromagnet is used to control the merging and separation of the armature by controlling the on / off state of the current. The centers of the electromagnet 6 and the armature 5 are located on the same axis, and the electromagnet controls the stepped merging and separation between the electromagnet and the armature by stepwise current control.

[0038] It should be noted that the fixing plate 4 and electromagnet 6 are the same as the mating plate 3 and armature 5. The fixing plate 4 is also L-shaped, with a connecting hole on its horizontal side that is the same as the first fixing hole. The electromagnet 6 is fixedly connected to the center of the vertical side of the fixing plate 4. The electromagnet 6 and armature 5 are located on the same axis. The mating plate 3 and armature 5 are connected by bolts, and the electromagnet 6 and fixing plate 4 are also connected by bolts. When the electromagnet 6 is powered, it will attract the armature 5 with magnetic force. The upper part of the mating plate 3 and fixing plate 4 can be connected to the moving base. When the electromagnet 6 and armature 5 are attracted, the moving base will automatically close. When the operation is completed, the electromagnet is de-energized, the magnetic force of the electromagnet 6 will disappear, the electromagnet 6 and armature 5 will separate, and the moving base will automatically separate. This achieves the automatic separation function of the moving base.

[0039] During the merging phase, the voltage is gradually increased. An initial low voltage generates a weak magnetic field, allowing the armature and electromagnet to initially attract each other in a vibrating environment. This weak magnetic field phase allows the armature to adaptively fine-tune its position under external vibration interference, avoiding instantaneous displacement caused by rigid collisions. As the voltage gradually increases to its peak value, the magnetic field strength increases synchronously, forming a strong axial magnetic attraction force. This force forcibly pulls the armature back into place along the coaxial design direction of the electromagnet and armature, eliminating any misalignment left by vibration during the merging process. The final result is that the moving base achieves precise alignment upon complete merging, and even under wind disturbances, the base's bearing surface remains horizontal and stable, providing a zero-tilt reference platform for mounted equipment (such as monitoring instruments).

[0040] During separation, the voltage is gradually reduced in a stepwise manner, starting from full voltage and gradually decreasing the current input. In the strong magnetic phase, the magnetic force is softened to prevent the armature from bouncing due to the sudden loss of magnetic attraction. In the weak magnetic phase, the T-shaped armature structure absorbs vibration energy through magnetic attenuation, constrains the displacement trajectory, and prevents swaying. This ensures that when the armature is completely separated, it has been gravity-locked back to its initial position, and there is no residual shaking in the base components. This ensures safe disassembly in high-altitude environments and eliminates the risk of parts falling.

[0041] The bidirectional stepped voltage design of merging and demerging forms a closed-loop control system. During merging, the gradual process of weak to strong magnetic fields causes a slight displacement of 0.5–3 Hz in the natural frequency of the base system. During demerging, the symmetrical operation of strong to weak magnetic fields cancels out the energy in the same frequency band. The two stages work together to form a frequency misalignment barrier, actively limiting the natural frequency displacement to the low-frequency range (below 3 Hz), while the wind-borne disturbances commonly seen in power towers are concentrated in the mid-frequency range of 4–6 Hz. This misalignment design essentially separates the device's response frequency band from the external excitation frequency band, physically avoiding resonance conditions and significantly attenuating wind-induced vibration energy transmission. Even in strong winds, the vibration amplitude of the base is suppressed within a safe threshold, and resonance is eliminated.

[0042] Example 1

[0043] During use, the fixed plate is fixedly connected to the moving base of the power tower with bolts, and the mating plate is fixedly connected to the monitoring instrument that gives the power tower other functions with bolts. Then, the electromagnet is energized so that the electromagnet completely attracts the armature and fixes the armature completely on the electromagnet. This connects the fixed plate and the mating plate, and connects the monitoring instrument on the mating plate to the power tower, thus giving the power tower a monitoring function.

[0044] Example 2

[0045] In a typhoon-prone coastal area, a detachable lidar module needs to be installed on the top of a high-voltage transmission tower (80 meters high) to monitor conductor wind deflection in real time. During the merging process, the fixing plate is fixed to the tower's moving base with bolts, and the mating plate is fixed to the lidar module with bolts. Then, the electromagnet is energized, with the energized current increasing in steps: 30%, 50%, 80%, and 100%, with a 0.1-second interval to avoid instantaneous attraction impact. The initial magnetic field is weak (30% voltage). The module is allowed to automatically fine-tune its position under the guidance of a magnetic field to eliminate hoisting deviations. During the gradient pressurization to 100%, the magnetic force continues to increase, forcing the module back to a zero-deviation state. The repositioning process generates a low-frequency displacement of 0.5-3Hz, avoiding the typical typhoon wind load frequency band of 4-6Hz, thus preventing resonance at the source. During the separation process, the voltage is reduced by 10% every 0.1 seconds to eliminate the residual magnetism of the electromagnet. The gradient voltage reduction avoids module swinging caused by sudden loss of magnetic force and suppresses vibration inertia until the voltage drops to 0, thus completing the separation operation.

[0046] Based on the preferred embodiments of the present invention described above, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. An automatic separation device for the moving base of an electric tower, comprising: A fixing mechanism (1) and a cooperating mechanism (2) connected to the fixing mechanism (1), characterized in that; The fixing mechanism (1) includes a fixing plate (4) and an electromagnet (6) disposed on the fixing plate (4); the fixing plate (4) is used to form a bearing base with the cooperating mechanism (2), the electromagnet (6) is connected to the cooperating mechanism (2), and the electromagnet (6) is used to control the connection with the cooperating mechanism (2) by controlling the supply of electrical power. The mating mechanism (2) includes a mating plate and an armature (5) disposed on the mating plate (3); the mating plate (3) and the receiving base are at the same horizontal height, and the armature (5) is used to connect with the electromagnet (6).

2. The automatic separation device for the moving base of an electric tower according to claim 1, characterized in that: The mating plate (3) is L-shaped, and reinforcing plates are provided on both sides of the mating plate (3).

3. The automatic separation device for the moving base of an electric tower according to claim 1, characterized in that: The horizontal plane on the mating plate (3) and the vertical plane on the mating plate (3) are respectively provided with a first fixing hole and a second fixing hole.

4. The automatic separation device for the moving base of an electric tower according to claim 3, characterized in that: The first fixing hole is vertically opened and is located on the horizontal plane of the mating plate (3).

5. The automatic separation device for the moving base of an electric tower according to claim 3, characterized in that: The second fixing hole is opened around the circumference of the vertical plane center of the mating plate (3).

6. The automatic separation device for the moving base of an electric tower according to claim 1, characterized in that: The armature (5) is a T-shaped cylinder with its two ends located on both sides of the vertical surface of the mating plate (3). The armature (5) is fixedly connected to the second fixing hole on the mating plate (3) by bolts.

7. The automatic separation device for the moving base of an electric tower according to claim 1, characterized in that: The fixing plate (4) is similar to the mating plate (3), both adopting an L-shaped configuration and having the same specifications, and both have reinforcing plates on their sides.

8. The automatic separation device for the moving base of an electric tower according to claim 1, characterized in that: The fixing plate (4) also has a connection hole on its horizontal side that is the same as the first fixing hole. The electromagnet (6) is fixedly connected to the center of the vertical side of the fixing plate (4). The centers of the electromagnet (6) and the armature (5) are on the same axis.

9. The automatic separation device for the moving base of an electric tower according to claim 1, characterized in that: The electromagnet (6) is fixedly connected to the center of the vertical side of the fixing plate (4). The electromagnet (6) is used to control the merging and separation of the armature (5) by controlling the on and off of the power.

10. The automatic separation device for the moving base of an electric tower according to claim 1, characterized in that: The centers of the electromagnet (6) and the armature (5) are located on the same axis. The electromagnet (6) controls the step-by-step merging and separation between the electromagnet (6) and the armature (5) by step-by-step current feeding and releasing.

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