Multi-dimensional adaptive transmission line anti-dancing device and working method
Through the multi-dimensional adaptive transmission line anti-dance device, the multi-dimensional dance movement is converted into horizontal and vertical movement, and the extra energy brought by the dance is eliminated through the multi-level anti-dance mechanism, which solves the problem of unsatisfactory adaptability of the existing devices in complex environments, and achieves the stability and safety guarantee of the transmission line.
Patent Information
- Application Number
- CN202411524259.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2044-10-30
AI Technical Summary
The existing anti-dancing device for power transmission lines is not ideally adaptable in complex and changing natural environments, and cannot effectively alleviate the additional energy and tension brought by multi-dimensional dance.
The multi-dimensional adaptive transmission line anti-dance device is adopted. This device converts the multi-dimensional dance movement into horizontal and vertical motion through the linear displacement of the horizontal transmission teeth and vertical transmission teeth, and eliminates the extra energy brought by the dance through the combined action of the inertial volume damping device, torsion spring and torsion body in the multi-level anti-dance mechanism.
It effectively reduces the additional tension on the wire, alleviates the impact and collision during dance, ensures the stability and safety of the transmission line, and extends the service life of the transmission line and its related equipment.
Smart Images

Figure CN119134193B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of power transmission line operation and maintenance, and in particular to a multi-dimensional adaptive power transmission line anti-dancing device and a working method. Background Art
[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.
[0003] Galloping is a large, low-frequency self-excited vibration of the conductor and its ancillary equipment under the influence of wind. This vibration will not only cause friction and collision between the conductor and the tower, and between the conductors, but also cause excessive tension during the galloping period, which will have an adverse effect on the mechanical strength and electrical performance of the transmission line. In severe cases, it may even cause accidents such as line breakage and tower collapse, threatening the safe and stable operation of the power system.
[0004] To solve the problem of conductor dancing, the conductor dancing amplitude can be alleviated and reduced by optimizing the conductor cross-section shape, increasing the rigidity and stability of the pole tower, and installing anti-dancing devices. The existing anti-dancing devices generally have the following aspects:
[0005] Phase spacers are spacers with insulation and mechanical strength used between phases or circuits. The spacers connect the conductors so that the movements of the conductors are mutually restricted, changing the vibration characteristics of the single-phase conductors to achieve the purpose of suppressing the galloping.
[0006] The double pendulum anti-dance device is developed based on the linear stability mechanism. It aims to improve the dynamic stability of the conductor system while also having the function of weight-reducing and anti-dance.
[0007] The wire clamp is a rotating spacer, and part of the wire clamp of the spacer can rotate freely (or within a certain angle range), and part of the wire clamp is the same as the ordinary clamp and cannot rotate freely. The movable clamp can change the ice shape of the ice-covered wire, thereby changing the aerodynamic characteristics of the ice-covered wire, reducing the aerodynamic load effect, and achieving the function of suppressing dancing.
[0008] The damping anti-dancing device is based on the principle of energy absorption and energy consumption. It uses viscoelastic damping materials to dissipate the vibration energy of the wire, thereby suppressing the dancing excitation from the source.
[0009] The detuned pendulum, based on the torsional vibration excitation mechanism, uses the detuning effect to adjust the natural frequency of the torsional vibration, separating it from the high-order natural frequency of the lateral vibration, thereby preventing their coupling and inducing dancing.
[0010] The above-mentioned existing anti-dancing devices have certain technical limitations. For example, some anti-dancing devices may only be applicable to specific types of power transmission lines or specific climatic conditions, and their adaptability to complex and changeable natural environments is not ideal. Summary of the invention
[0011] In order to solve the technical problems existing in the above-mentioned background technology, the present invention provides a multi-dimensional adaptive transmission line anti-dancing device and a working method, which converts multi-dimensional motion into linear displacement of horizontal transmission teeth and vertical transmission teeth, and through the joint action of the inertia damping device, torsion spring and torsion body in the multi-stage anti-dancing mechanism, eliminates the extra energy caused by the dancing, reduces the extra tension borne by the wire, alleviates the impact and collision during the dancing, and ensures the stability and safety of the transmission line.
[0012] In order to achieve the above object, the present invention adopts the following technical solution:
[0013] The first aspect of the present invention provides a multi-dimensional adaptive transmission line anti-dancing device, comprising horizontal transmission teeth and vertical transmission teeth connected to the conductor, the conductor dancing is converted into linear displacement of the horizontal transmission teeth and the vertical transmission teeth, and the dancing energy is consumed by a multi-stage anti-dancing mechanism; wherein the multi-stage anti-dancing mechanism comprises:
[0014] The first-level anti-dancing mechanism includes a pinion gear meshed with the horizontal transmission gear and the vertical transmission gear respectively, and the pinion gear drives the damping disc inside the inertia damping device to rotate, and utilizes the rotation of the damping disc in the damping fluid to consume the dancing energy;
[0015] The secondary anti-dancing mechanism comprises main gears meshing with the horizontal transmission teeth and the vertical transmission teeth respectively, the main gears have at least two groups and are arranged in parallel on the spin connecting rod, the sides of the main gears close to each other are connected with corresponding torsion springs, and the torsion springs are driven by the main gears to rotate to achieve torsion compression and consume the dancing energy;
[0016] The three-level anti-dancing mechanism comprises a torsion body connected to a self-spinning connecting rod, wherein the torsion body is located between two sets of torsion springs, and the self-spinning connecting rod drives the torsion body to rotate to realize torsional compression deformation and consume dancing energy.
[0017] Furthermore, the wire is connected to one end of the horizontal transmission tooth and the vertical transmission tooth respectively through a connecting ring.
[0018] Furthermore, the horizontal transmission teeth and the vertical transmission teeth each have at least two groups, and in each group of the horizontal transmission teeth and the vertical transmission teeth, the two oppositely arranged side surfaces each have a tooth surface.
[0019] Furthermore, the main gear is meshed with the side where the tooth surfaces of the two groups of horizontal transmission teeth and the two groups of vertical transmission teeth are close to each other; the auxiliary gear is meshed with the side where the tooth surfaces of the horizontal transmission teeth and the vertical transmission teeth are far away from each other.
[0020] Furthermore, both ends of the spinning connecting rod are movably connected to a cross fixing plate, and a plurality of groups of inertia-capacitance damping devices arranged in parallel with the spinning connecting rod are provided on the cross fixing plate, each group of inertia-capacitance damping devices includes a main inertia-capacitance damping device and a secondary inertia-capacitance damping device, the auxiliary gears are located at both ends of the main inertia-capacitance damping device, and the secondary inertia-capacitance damping device is located between the auxiliary gear and the cross fixing plate.
[0021] Furthermore, the plurality of sets of inertial capacity damping devices are evenly distributed along the circumferential direction with the axis of the spinning connecting rod as the center of the circle, and the plurality of sets of inertial capacity damping devices together with the spinning connecting rod form a cross-shaped arrangement in the cross section.
[0022] Furthermore, the inertia damping device includes a shell and a damping disc, the shell is fixedly connected to the cross fixing plate, ratchets in opposite directions are respectively provided on both sides of the damping disc, and the cavity between the shell and the damping disc is filled with damping fluid.
[0023] Furthermore, there are multiple groups of damping discs which are arranged in parallel on the same rotating shaft, and the secondary gear drives the multiple groups of damping discs to rotate via the rotating shaft.
[0024] A second aspect of the present invention provides a working method of a multi-dimensional adaptive transmission line anti-dancing device, comprising the following steps:
[0025] When dancing occurs, the horizontal transmission teeth and vertical transmission teeth transfer the dancing energy to the corresponding main gear and auxiliary gear respectively through linear displacement;
[0026] In the first-level anti-dancing mechanism, the secondary gear drives the damping disc inside the corresponding inertia damping device to rotate. The damping disc rotates under the viscosity of the damping fluid, and the ratchet produces relative motion in the viscous damping fluid. The energy is absorbed and dissipated by the damping fluid, and the vibration frequency is changed, forming a first-level anti-dancing measure.
[0027] In the secondary anti-dancing mechanism, the main gear rotates, and the torsion spring located inside the main gear follows the rotation of the main gear to produce torsion compression and consume the dancing energy, forming a secondary anti-dancing measure;
[0028] In the three-level anti-dancing mechanism, the main gear drives the self-spinning connecting rod to rotate, and the torsion body on the self-spinning connecting rod undergoes torsional compression deformation and consumes dancing energy, forming a three-level anti-dancing measure.
[0029] Furthermore, the dancing stops, the torsion spring and the torsion body are deformed and restored, generating a reverse motion, causing the self-spinning connecting rod and the main gear to rotate in the opposite direction, and the multi-stage anti-dance mechanism is restored to its initial state.
[0030] Compared with the prior art, one or more of the above technical solutions have the following beneficial effects:
[0031] 1. The dancing of the conductor is a relative movement in multiple dimensions. The multi-dimensional movement is converted into the linear displacement of the horizontal transmission teeth and the vertical transmission teeth. Through the joint action of the inertial damping device, torsion spring and torsion body in the multi-stage anti-dancing mechanism, the extra energy caused by the dancing is eliminated, the extra tension on the conductor is reduced, the impact and collision during the dancing are alleviated, and the stability and safety of the transmission line are guaranteed.
[0032] 2. When the dancing ends, the deformation recovery ability of the torsion spring and the torsion body is used to generate reverse motion, so that the self-spinning connecting rod and the main gear rotate in the opposite direction, thereby restoring the multi-stage anti-dance mechanism to its initial state, thereby adaptively restoring the spacing position of the transmission line and ensuring the stability of the transmission line.
[0033] 3. The device has a compact structure and is easy to install. It is fixed on the transmission line through an insulating connecting ring. It has a stable structure and is easy to install, and will not have any additional impact on the normal operation of the transmission line.
[0034] 4. The cross-shaped arrangement formed by multiple sets of inertial damping devices and the self-spinning connecting rods, combined with meshing gears on the tooth surfaces on both sides of the horizontal transmission teeth and the vertical transmission teeth, can better decompose the dancing motion into horizontal and vertical motions, and can limit the linear displacement motion to avoid accidental separation of the transmission teeth and gears during the elimination of the dancing energy.
[0035] 5. Long-term dancing will cause wear and fatigue to the transmission line and its supporting structure, reducing its service life. This device effectively reduces the dancing amplitude through the application of multi-level anti-dancing measures, and can significantly reduce such wear and fatigue, thereby extending the service life of the transmission line and its related equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0036] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.
[0037] Figure 1 is a schematic structural diagram of a multi-dimensional adaptive transmission line anti-dancing device provided by one or more embodiments of the present invention;
[0038] Figure 2 It is a schematic diagram of the cross-sectional structure in the axial direction of a multi-dimensional adaptive transmission line anti-dancing device provided by one or an embodiment of the present invention;
[0039] Figure 3 It is a schematic diagram of the structure of a multi-dimensional adaptive transmission line anti-dancing device provided by one or an embodiment of the present invention, after removing the closed chamber;
[0040] Figure 4It is a partial structural schematic diagram of a multi-dimensional adaptive transmission line anti-dancing device provided by one or an embodiment of the present invention, in which a damping disc is removed.
[0041] In the figure, 1 is a transmission line, 2 is a main gear, 3 is a sub-gear, 4 is a self-spinning connecting rod, 5 is a connecting ring, 6 is a horizontal transmission tooth, 7 is a vertical transmission tooth, 8 is a main inertia damping device, 9 is a secondary inertia damping device, 10 is a torsion spring, 11 is a high-elastic torsion rubber, 12 is a cross fixing plate, 13 is a damping disc, 14 is a ratchet, and 15 is a ball bearing. DETAILED DESCRIPTION
[0042] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0043] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.
[0044] Terminology explanation:
[0045] The galloping of transmission lines is a low-frequency, large-amplitude self-excited vibration phenomenon caused by eccentric ice-covered conductors under wind excitation. It is generally believed that when the temperature is 0 to -10℃ or lower, the wind speed is 2 to 25m / s or higher, and the angle between the wind direction and the line direction is in the range of 45° to 90°, the unevenly iced conductors may gallop. Excessive conductor galloping can easily cause conductor strand breakage and loosening of tower bolts. In severe cases, it can also damage or drop the line jumper string, causing arc burns in the line and power accidents. Galloping will generate surge current, which will have negative effects such as electromagnetic interference and overvoltage on the system. The noise and vibration generated by the galloping will also affect the surrounding environment. In addition, the galloping will cause the insulation gap between conductors, between conductors and overhead ground wires, and between conductors and poles or crossarms to decrease, causing cross-contact discharge between phases, resulting in repeated line tripping and affecting normal power supply.
[0046] As described in the background technology, existing anti-dancing devices have certain technical limitations. For example, some anti-dancing devices may only be applicable to specific types of power transmission lines or specific climatic conditions, and their adaptability to complex and changeable natural environments is not ideal.
[0047] Therefore, the following embodiments provide a multi-dimensional adaptive transmission line anti-dancing device and working method, based on the inertia amplification principle, through the cross fixing plate, horizontal dancing transmission device, vertical dancing transmission device, torsion spring, high elastic torsion rubber and inertia damping device coordinated with each other, using the joint action to achieve the purpose of preventing the transmission line from dancing. It can limit and weaken the impact of the transmission line dancing on itself, and has the characteristics of multi-dimensional hierarchical adjustment, self-adaptation and rapid response.
[0048] Embodiment 1:
[0049] like Figure 1-Figure 3 As shown, the multi-dimensional adaptive transmission line anti-dancing device comprises a horizontal transmission tooth 6 and a vertical transmission tooth 7 connected to the conductor, the dancing of the conductor is converted into a linear displacement of the horizontal transmission tooth 6 and the vertical transmission tooth 7, and the dancing energy is consumed by a multi-stage anti-dancing mechanism; wherein;
[0050] The first-level anti-dance mechanism includes a pinion 3 meshed with the corresponding horizontal transmission teeth 6 and vertical transmission teeth 7, and the pinion 3 drives the damping disc 13 inside the inertia damping device to rotate, and utilizes the rotation of the damping disc 13 in the damping fluid to consume the dancing energy;
[0051] The secondary anti-dancing mechanism includes a main gear 2 meshing with the horizontal transmission teeth 6 and another set of main gears 2 meshing with the vertical transmission teeth 7. The two main gears 2 are arranged in parallel on the self-spinning connecting rod 4, and the sides close to each other are connected with corresponding torsion springs 10, and the dancing energy is further consumed by the torsion compression of the torsion springs 10;
[0052] The three-level anti-dancing mechanism includes a torsion body connected to the spinning connecting rod 4, and the torsion body is located between two groups of torsion springs 10. The dancing energy is further consumed through the torsion compression deformation of the torsion body.
[0053] There are at least two groups of horizontal transmission teeth 6 , one end of each group of horizontal transmission teeth 6 is connected to the corresponding wire through a connecting ring 5 , and the upper surface and the lower bottom surface of the horizontal transmission teeth 6 both have tooth surfaces.
[0054] There are at least two groups of vertical transmission teeth 7 , one end of each group of vertical transmission teeth 7 is connected to the corresponding wire through a connecting ring 5 , and both side surfaces of the vertical transmission teeth 7 have tooth surfaces.
[0055] The connecting ring 5 is not limited to a specific structure. For example, one end of the horizontal transmission tooth 6 is fixed to a point on the circumferential side of the connecting ring 5, and the vertical transmission tooth 7 can be fixed to a point on the circumferential side of the connecting ring 5 through an adapter plate. There is a set angle between the vertical transmission tooth 7 and the adapter plate. The specific angle is not limited and can be determined based on the relative position of the wire while ensuring safety (such as insulation).
[0056] In this embodiment, the wire is Figure 1 The transmission line 1 shown in the figure takes two groups of transmission lines arranged in parallel as an example 1, and each transmission line 1 is provided with a connecting ring 5, and the connecting ring 5 is respectively fixedly connected to one end of the horizontal transmission tooth 6 and the vertical transmission tooth 7. When the transmission line 1 dances, the displacement of the horizontal transmission tooth 6 and the vertical transmission tooth 7 decomposes the movement in the horizontal direction and the vertical direction, and the main gear 2 and the sub-gear 3 meshing with the horizontal transmission tooth 6 and the vertical transmission tooth 7 are used to consume the energy generated by the dancing step by step.
[0057] The self-spinning connecting rod 4 is arranged between two groups of power transmission lines 1, and both ends are movably connected to the cross fixing plate 12. Ball bearings 15 are provided at corresponding positions to realize its rotation around the axis.
[0058] At least two groups of main gears 2 arranged in parallel are provided on the spin connecting rod 4, and the sides of the two main gears 2 close to each other are connected to corresponding torsion springs 10, and the sides of the two torsion springs 10 close to each other are provided with a torsion body, which is a high-elastic torsion rubber 11 in this embodiment; the spin connecting rod 4, the main gear 2, the torsion spring 10 and the torsion body are located on the same axis.
[0059] Among the two groups of main gears 2, one group of main gears 2 is meshed with two groups of horizontal transmission teeth 6, and the other group of main gears 2 is meshed with two groups of vertical transmission teeth 7, which converts the multi-dimensional relative motion generated when the transmission line 1 dances into the relative motion of the two groups of transmission lines 1 in the horizontal direction and the relative motion in the vertical direction, and further converts it into the rotation of the main gear 2 together with the spinning connecting rod 4 through the horizontal transmission teeth 6 and the vertical transmission teeth 7 respectively meshed with the main gears 2.
[0060] The two oppositely arranged side surfaces of the horizontal transmission teeth 6 and the vertical transmission teeth 7 both have tooth surfaces, for example, the upper surface and the lower bottom surface of the horizontal transmission teeth 6 both have tooth surfaces, and the two side surfaces of the vertical transmission teeth 7 both have tooth surfaces. The main gear 2 is meshed on the side where the two tooth surfaces are close to each other, and the side where the two tooth surfaces are far away is meshed with the corresponding sub-gear 3. The relative movement of the two groups of transmission lines 1 in the horizontal direction and the relative movement in the vertical direction are converted into the rotation of the sub-gear 3 through the horizontal transmission teeth 6 and the vertical transmission teeth 7, and the sub-gear 3 drives the damping disc 13 inside the inertia damping device to rotate.
[0061] The cross fixing plate 12 is provided with a plurality of groups of inertia capacity damping devices arranged in parallel with the spinning connecting rod 4, each group of inertia capacity damping devices includes a main inertia capacity damping device 8 and a secondary inertia capacity damping device 9, the auxiliary gear 3 is located at both ends of the main inertia capacity damping device 8, and the secondary inertia capacity damping device 9 is located between the auxiliary gear 3 and the cross fixing plate 12.
[0062] The plurality of inertia damping devices are evenly distributed along the circumferential direction with the axis of the self-spinning connecting rod 4 as the center. In this embodiment, there are four groups of inertia damping devices, corresponding to the sub-gears 3 meshing with the two groups of horizontal transmission teeth 6 and the sub-gears 3 meshing with the two groups of vertical transmission teeth 7. The plurality of inertia damping devices together with the self-spinning connecting rod 4 form a cross-shaped arrangement in the cross section, as shown in FIG. Figure 2 shown.
[0063] like Figure 4As shown, the inertia damping device includes a shell and a damping disc 13. The shell is fixedly connected to a cross fixing plate 12. The damping disc 13 has multiple groups and is arranged in parallel on the same axis. The pinion 3 drives the multiple groups of damping discs 13 to rotate. Ratchets 14 in opposite directions are respectively provided on both sides of the damping disc 13. The cavity between the shell and the damping disc 13 is filled with damping fluid.
[0064] The above-mentioned device converts the dancing of the transmission line 1 into the linear displacement of the horizontal transmission teeth 6 and the vertical transmission teeth 7, and can accurately capture the relative movement in the horizontal and vertical directions generated by the dancing of the transmission line, so as to respond in time and take measures to reduce the dancing amplitude and ensure the stability and safety of the transmission line.
[0065] The device is designed with a multi-level anti-dance mechanism, specifically:
[0066] In the primary anti-dancing mechanism, the horizontal transmission teeth 6 and the vertical transmission teeth 7 transfer the dancing energy to the corresponding sub-gear 3 through linear displacement. The sub-gear 3 drives the damping disc 13 inside the corresponding inertia damping device to rotate. The damping disc 13 rotates under the viscosity of the damping fluid. The ratchet 14 produces relative motion in the viscous damping fluid. The energy is absorbed and dissipated by the damping fluid, and the deceleration and energy dissipation effect generated by the interaction between the ratchet and the viscous damping fluid changes the vibration frequency, forming a primary anti-dancing measure.
[0067] The rotation of the secondary gear 3 causes the multiple damping discs 13 to rotate. The damping discs 13 and the secondary gear 3 are arranged on the same rotating shaft, so they rotate at the same angular velocity. The damping discs 13 enlarge the diameter of the rotating shaft, so that the linear velocity of the rotating shaft is amplified, and then the inertia of the rotating shaft is amplified, playing the role of inertia amplification. Ratchets in opposite directions are provided on both sides of the damping disc. As the damping disc rotates, the ratchets produce relative motion in the viscous damping fluid filled in the closed chamber, and the viscous damping fluid slows down the damping disc. When the transmission line dances, the device will convert the dance into the rotation of the self-spinning connecting rod 4 and the rotating shaft through the main gear 2 and the secondary gear 3 respectively, and the ratchets on the damping disc co-rotating with the secondary gear 3 will produce a deceleration and energy consumption effect, changing the vibration frequency.
[0068] In the secondary anti-dancing mechanism, the dancing energy is transferred to the main gear 2 by the horizontal transmission teeth 6 and the vertical transmission teeth 7 through linear displacement. When the main gear 2 rotates, the torsion spring 10 located on the inner side of the main gear 2 produces torsional compression, further consuming the dancing energy, forming a secondary anti-dancing measure.
[0069] In the three-level anti-dancing mechanism, when the main gear 2 rotates, the spinning connecting rod 4 rotates accordingly, and the torsion body (high-elastic torsion rubber 11) on the spinning connecting rod 4 undergoes torsional compression deformation, which also absorbs a large amount of dancing energy, forming a three-level anti-dancing measure.
[0070] Through the combined effect of the above three levels of anti-galloping measures, the galloping energy of the transmission line is significantly reduced.
[0071] The device has a strong adaptive recovery capability. When the external force disappears and the dancing stops, the deformation of the torsion spring 10 and the high-elastic torsion rubber 11 is restored, and reverse motion is generated, so that the self-spinning connecting rod 4 and the main gear 2 rotate in the opposite direction, and the device is restored to the initial state, so that the spacing position of the transmission line 1 is adaptively restored, ensuring the stability of the transmission line 1.
[0072] The device has a compact structure and is easy to install. It is fixed on the transmission line 1 through an insulating connecting ring 5. The structure is stable and easy to install, and will not have additional impact on the normal operation of the transmission line. The cross-shaped arrangement formed by multiple sets of inertial capacitance damping devices together with the spinning connecting rod 4 makes the tooth surfaces on both sides of the horizontal transmission teeth and the vertical transmission teeth have meshing gears, which can better decompose the dancing motion into horizontal and vertical motions, and can limit the linear displacement motion to avoid separation of the transmission teeth from the corresponding gears.
[0073] It can improve the efficiency and safety of power transmission. By effectively reducing the dancing of transmission lines, the risk of line failure and power outage caused by dancing is reduced, thereby improving the efficiency of power transmission and the safety of power grid operation.
[0074] It can enhance the durability of the line. Long-term dancing will cause wear and fatigue to the transmission line and its supporting structure, reducing its service life. This device can significantly reduce such wear and fatigue by effectively reducing the amplitude of dancing, thereby extending the service life of the transmission line and its related equipment.
[0075] It can improve the stability of the system. The dancing of the transmission line may cause voltage fluctuation and current instability in the power grid system, affecting the power supply quality. The application of this device can reduce such unstable factors and improve the overall stability of the power grid system.
[0076] It can reduce maintenance costs. Since the device has a simple structure and can significantly reduce the dancing of the transmission line, it reduces line failures and maintenance requirements caused by the dancing, thereby reducing maintenance costs.
[0077] The device does not require additional energy input, uses mechanical physical principles to prevent dancing, has strong adaptive capabilities and does not require human intervention, is green, pollution-free and sustainable.
[0078] Embodiment 2:
[0079] The working method of the multi-dimensional adaptive transmission line anti-dancing device comprises the following steps:
[0080] When dancing occurs, the horizontal transmission teeth 6 and the vertical transmission teeth 7 transfer the dancing energy to the corresponding main gear 2 and auxiliary gear 3 respectively through linear displacement;
[0081] In the primary anti-dancing mechanism, the secondary gear 3 drives the damping disc 13 inside the corresponding inertia damping device to rotate. The damping disc 13 rotates under the viscosity of the damping fluid, and the ratchet 14 produces relative motion in the viscous damping fluid. The energy is absorbed and dissipated by the damping fluid, and the vibration frequency is changed, forming a primary anti-dancing measure.
[0082] In the secondary anti-dancing mechanism, the main gear 2 rotates, and the torsion spring 10 located inside the main gear 2 generates torsion compression following the rotation of the main gear 2, further consuming the dancing energy, forming a secondary anti-dancing measure;
[0083] In the three-level anti-dancing mechanism, the main gear 2 drives the self-spinning connecting rod 4 to rotate, and the torsion body (high-elastic torsion rubber 11) on the self-spinning connecting rod 4 undergoes torsional compression deformation along with the rotation, further consuming the dancing energy, forming a three-level anti-dancing measure.
[0084] The dancing stops, the deformation of the torsion spring 10 and the high-elastic torsion rubber 11 is restored, and reverse motion is generated, causing the self-spinning connecting rod 4 and the main gear 2 to rotate in the opposite direction, and the device returns to the initial state, thereby causing the spacing position of the transmission line 1 to be adaptively restored, thereby ensuring the stability of the transmission line 1.
[0085] The dancing of the transmission line 1 is converted into the linear displacement of the horizontal transmission teeth 6 and the vertical transmission teeth 7, which can accurately capture the relative movement in the horizontal and vertical directions generated by the dancing of the transmission line, so as to respond in time and take measures to reduce the dancing amplitude. The linear displacement is transferred to the first-level anti-dancing mechanism and the second and third-level anti-dancing mechanisms through the main gear 2 and the auxiliary gear 3, and the corresponding anti-dancing mechanism absorbs and consumes the extra energy brought by the dancing to ensure the stability and safety of the transmission line. Through the joint action of the above-mentioned multi-level anti-dancing measures, the dancing energy of the transmission line is significantly reduced.
[0086] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A multi-dimensional adaptive transmission line anti-dancing device, characterized in that: It includes horizontal transmission teeth and vertical transmission teeth connected to the conductor, the conductor dancing is converted into linear displacement of the horizontal transmission teeth and the vertical transmission teeth, and the dancing energy is consumed by a multi-level anti-dancing mechanism; wherein the multi-level anti-dancing mechanism includes: The first-level anti-dancing mechanism includes a pinion gear meshed with the horizontal transmission gear and the vertical transmission gear respectively, and the pinion gear drives the damping disc inside the inertia damping device to rotate, and utilizes the rotation of the damping disc in the damping fluid to consume the dancing energy; The secondary anti-dancing mechanism comprises main gears meshing with the horizontal transmission teeth and the vertical transmission teeth respectively, the main gears have at least two groups and are arranged in parallel on the spin connecting rod, the sides of the main gears close to each other are connected with corresponding torsion springs, and the torsion springs are driven by the main gears to rotate to achieve torsion compression and consume the dancing energy; The three-level anti-dancing mechanism comprises a torsion body connected to a self-spinning connecting rod, wherein the torsion body is located between two sets of torsion springs, and the self-spinning connecting rod drives the torsion body to rotate to realize torsional compression deformation and consume dancing energy.
2. The multi-dimensional adaptive transmission line anti-dancing device according to claim 1, characterized in that: The conducting wire is respectively connected with one end of the horizontal transmission tooth and the vertical transmission tooth through a connecting ring.
3. The multi-dimensional adaptive transmission line anti-dancing device according to claim 1, characterized in that: The horizontal transmission teeth and the vertical transmission teeth each have at least two groups, and in each group of the horizontal transmission teeth and the vertical transmission teeth, the two oppositely arranged side surfaces each have a tooth surface.
4. The multi-dimensional adaptive transmission line anti-dancing device according to claim 3, characterized in that: The main gear is meshed with the side where the tooth surfaces of the two groups of horizontal transmission teeth and the two groups of vertical transmission teeth are close to each other; the auxiliary gear is meshed with the side where the tooth surfaces of the horizontal transmission teeth and the vertical transmission teeth are far away from each other.
5. The multi-dimensional adaptive transmission line anti-dancing device according to claim 1, characterized in that: The two ends of the self-spinning connecting rod are movably connected to a cross fixing plate, and a plurality of groups of inertia capacity damping devices arranged in parallel with the self-spinning connecting rod are provided on the cross fixing plate, each group of inertia capacity damping devices includes a main inertia capacity damping device and a secondary inertia capacity damping device, the auxiliary gears are located at the two ends of the main inertia capacity damping device, and the secondary inertia capacity damping device is located between the auxiliary gear and the cross fixing plate.
6. The multi-dimensional adaptive transmission line anti-dancing device according to claim 5, characterized in that: The multiple groups of inertia capacity damping devices are evenly distributed along the circumferential direction with the axis of the spinning connecting rod as the center of the circle, and the multiple groups of inertia capacity damping devices together with the spinning connecting rod form a cross-shaped arrangement in the cross section.
7. The multi-dimensional adaptive transmission line anti-dancing device according to claim 1, characterized in that: The inertia damping device comprises a shell and a damping disc, the shell is fixedly connected to a cross fixing plate, ratchets in opposite directions are respectively arranged on two sides of the damping disc, and the cavity between the shell and the damping disc is filled with damping fluid.
8. The multi-dimensional adaptive transmission line anti-dancing device according to claim 1, characterized in that: The damping discs are provided in multiple groups and are arranged in parallel on the same rotating shaft, and the secondary gear drives the multiple groups of damping discs to rotate through the rotating shaft.
9. The working method of the multi-dimensional adaptive transmission line anti-dancing device according to any one of claims 1 to 8 is characterized in that: The following steps are involved: When dancing occurs, the horizontal transmission teeth and vertical transmission teeth transfer the dancing energy to the corresponding main gear and auxiliary gear respectively through linear displacement; In the first-level anti-dancing mechanism, the secondary gear drives the damping disc inside the corresponding inertia damping device to rotate. The damping disc rotates under the viscosity of the damping fluid, and the ratchet produces relative motion in the viscous damping fluid. The energy is absorbed and dissipated by the damping fluid, and the vibration frequency is changed, forming a first-level anti-dancing measure. In the secondary anti-dancing mechanism, the main gear rotates, and the torsion spring located inside the main gear follows the rotation of the main gear to produce torsion compression and consume the dancing energy, forming a secondary anti-dancing measure; In the three-level anti-dancing mechanism, the main gear drives the self-spinning connecting rod to rotate, and the torsion body on the self-spinning connecting rod undergoes torsional compression deformation and consumes dancing energy, forming a three-level anti-dancing measure.
10. The working method of the multi-dimensional adaptive transmission line anti-dancing device according to claim 9, characterized in that: When the dancing stops, the torsion spring and the torsion body recover their shapes, generating reverse motion, causing the self-spinning connecting rod and the main gear to rotate in the opposite direction, and the multi-stage anti-dance mechanism returns to its initial state.
Citation Information
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