Arm hammering type distribution network dual-conductor deicing device and deicing method

Abstract

The present application relates to the technical field of distribution network line deicing equipment, in particular to a large arm knocking type distribution network double-conductor deicing device and deicing method. The device comprises a walking device, a power device, an ice knocking device and a reversing device. The power device outputs two reverse powers, which are controllably transmitted to a torsional spring through a friction transmission assembly. The torsional spring stores energy to drive the ice knocking rod to swing and break ice. The torsional spring is deformed by the reaction force of ice layer impact, and the reversing device is mechanically switched to realize the alternate hitting of the ice knocking rod on the two sides of the conductor. The present application cancels the electric control reversing component, and the double-conductor deicing can be completed by single line hanging. The low temperature environment has low failure rate, the whole machine has small weight and stable operation, and is suitable for distribution network line deicing operation in winter.

Description

Technical Field

[0001] This invention relates to the technical field of distribution network line de-icing equipment, specifically a heavy-duty arm-type distribution network double conductor de-icing device and de-icing method. Background Technology

[0002] In winter, when temperatures are low and there is rain or snow, ice can easily form on the outer surface of 10kV distribution network three-phase overhead conductors. If the ice layer is too thick, it will cause the conductors to become heavier and the sag to increase. In severe cases, it can lead to distribution network accidents such as line breakage, tower collapse, and power outages. Therefore, routine de-icing of lines is a key task in distribution network operation and maintenance.

[0003] Currently, de-icing of power distribution network conductors is mainly divided into three categories: manual de-icing, electrothermal de-icing, and airborne mechanical de-icing. Manual pole-climbing and knocking de-icing is inefficient, high-altitude operations are risky, and it cannot meet the de-icing needs of the entire line when icing is severe or the icing section spans a large area. Electrothermal de-icing requires modification of the line wiring structure and external high-power de-icing power supply, resulting in high equipment investment costs. It is difficult to modify small and medium-sized power distribution lines, and it has high energy consumption and poor economic efficiency. Existing suspended line de-icing robots mostly use a single-sided blade wheel cutting de-icing or a single-sided pendulum knocking structure. Conventional structures can only de-ic the conductors on both sides of a three-phase line, requiring two separate machines for each conductor. The repeated operation and long construction period are significant challenges. Furthermore, existing pendulum-based de-icing structures typically rely on electromagnetic valves, limit switches, and control circuit boards to achieve left-right reversal. In low-temperature, rainy, snowy, and condensing environments, these electronic components are highly susceptible to moisture damage, short circuits, and low-temperature malfunctions, resulting in a high failure rate and frequent maintenance, which significantly increases operating costs. Additionally, conventional energy storage striking structures have a fixed torsion spring travel, making it impossible to adaptively complete reversal actions based on the impact reaction force of the ice layer. This necessitates an additional electronic triggering mechanism, resulting in a complex structure, excessive weight, and poor operational stability when mounted on thinner distribution network conductors, making it prone to problems such as wire jamming, misalignment, and detachment.

[0004] Therefore, there is an urgent need to develop a heavy-duty arm-type double conductor de-icing device and de-icing method for power distribution networks to solve the technical problems of traditional equipment that can only de-ic one conductor at a time, the easy failure of electrical control commutation, and the excessive weight of the whole machine due to structural redundancy. Summary of the Invention

[0005] The purpose of this invention is to provide a heavy-duty arm-type double conductor de-icing device and de-icing method for power distribution networks, so as to solve the above-mentioned defects in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] The present invention proposes a heavy-duty arm-type de-icing device for dual conductors in a power distribution network, comprising a traveling device, a power unit, an ice-breaking device, and a reversing device. The traveling device is an integral rigid frame structure, straddling the middle conductor of a three-phase power transmission line. It has wheels at the bottom, with the outer surface of the wheels conforming to the outer surface of the middle conductor, allowing it to roll along the conductor's axial direction to support the entire machine and achieve uniform speed movement. The power unit is horizontally fixed in the middle of the traveling device and includes an ice-breaking motor and a gear transmission assembly. The ice-breaking motor drives the gear transmission assembly, outputting two continuous rotational forces in opposite directions. The ice-breaking devices are symmetrically arranged inside the power unit and include a friction transmission assembly, a torsion spring, and a... Spring 2 and ice-breaking stick; the two reverse power sources delivered by the power unit are selectively switched on and off by the friction transmission component, respectively driving torsion spring 1 and torsion spring 2. The torsion springs undergo elastic torsional deformation under load, which has both torque transmission and impact energy storage functions, and is linked to the ice-breaking stick to swing back and forth to strike the two outer conductors of the three-phase power transmission line to cover the ice; the reversing device is located below the ice-breaking device and is mechanically linked with the friction transmission component, torsion spring 1, and torsion spring 2; the ice-breaking stick impacts the ice and generates reverse resistance, which forces the corresponding torsion spring to twist and deform. The deformation displacement of the torsion spring drives the reversing device to perform mechanical linkage, pulling the friction transmission component to switch the clutch on and off, realizing the alternating conduction of the left and right power sources, driving the ice-breaking stick to alternately strike the two outer conductors of the three-phase power transmission line.

[0008] Preferably, the walking device includes a walking frame, walking wheels, and support rollers; the walking frame is a rectangular hollow rigid frame, horizontally spanning directly above the middle conductor of the three-phase power transmission line, with support arms extending from both ends, and the middle part serving as the mounting platform for the power unit, acting as the mounting base for all components of the machine; the walking wheels are solid circular rubber wheels, four in total, divided into two groups of two each, symmetrically mounted on the bottom of the walking frame and on both sides of the middle conductor of the three-phase power transmission line, the wheel bodies of the walking wheels are in contact with the side of the middle conductor and can rotate freely around their own horizontal axis under the drive of a micro geared motor, driving the entire machine to roll smoothly along the conductor axis; the support rollers are mounted on the bottom of the walking frame and engaged on the upper side of the middle conductor of the three-phase power transmission line, used for supporting and limiting the entire machine.

[0009] Preferably, the power unit includes an ice-crushing motor and a gear transmission assembly; the ice-crushing motor is a unidirectional, continuously rotating servo motor, fixedly mounted on the central mounting platform of the walking frame; the gear transmission assembly includes a lower drive shaft, a second drive gear, a third drive gear, an idler gear, a first drive gear, and a fourth drive gear; a combined support base is mounted on the central mounting platform of the walking frame, the lower drive shaft passes through the combined support base, and one end of it is rigidly connected to the output shaft of the ice-crushing motor coaxially; the second and third drive gears are spur gears with identical structures, respectively fixed to both ends of the lower drive shaft shaft by flat keys, rotating synchronously and at the same speed as the lower drive shaft; the idler gear, the first drive gear, and the fourth drive gear... The four drive gears are mounted on the combined support base directly above the three drive gears, and their axes are parallel to the lower drive shaft axis. The idler gear is positioned between the three drive gears and the four drive gears, and its outer tooth surface meshes with the outer tooth surfaces of both the three drive gears. The first drive gear is mounted on the combined support base directly above the second drive gear, and its axis is parallel to the lower drive shaft axis. The outer tooth surface of the first drive gear meshes with the outer tooth surface of the second drive gear. The first drive gear and the fourth drive gear are coaxial, and through gear meshing and the reversing action of the idler gear, the first drive gear and the fourth drive gear rotate in opposite directions, thereby outputting two opposing rotational forces.

[0010] Preferably, the friction transmission assembly includes a stepped shaft one, a stepped shaft two, a friction transmission component one, a friction transmission component two, a friction transmission component three, a friction transmission component four, a disc-shaped transmission component one, and a disc-shaped transmission component two; the stepped shaft one and the stepped shaft two are horizontally mounted on the combined support base, with their axes collinear; the outer end of the stepped shaft one is coaxially and fixedly connected to the transmission gear four, and the outer end of the stepped shaft two is coaxially and fixedly connected to the transmission gear four, and are synchronously driven to rotate by the gear transmission assembly; the friction transmission components one, two, three, and four are all disc-shaped components, and the friction transmission components one and two are respectively connected to the inner ends of the stepped shaft one and the stepped shaft two by flat keys and can slide along the axes of the stepped shaft one and the stepped shaft two respectively; the disc-shaped transmission components one and two are coaxially fixed with the friction transmission components three and four respectively, and the common connecting shafts of the disc-shaped transmission components one and three, and the disc-shaped transmission components two and four are all mounted through the combined support base; Friction plate 1 and friction plate 2 are respectively bonded to the opposite end faces of friction transmission component 1 and friction transmission component 3, and friction plate 3 and friction plate 4 are respectively bonded to the opposite end faces of friction transmission component 2 and friction transmission component 4; when friction plate 1 and friction plate 2, and friction plate 3 and friction plate 4 are in contact with each other, torque transmission is achieved, and when they are separated, power input is cut off.

[0011] Preferably, the ice-breaking device further includes a first return spring and a second return spring; the first and second torsion springs are equal-diameter cylindrical helical torsion springs, respectively fitted on the outside of the second and first disc-shaped transmission components, and one end of the first and second torsion springs are respectively engaged and fixed to the second and first disc-shaped transmission components, and the other end of both are engaged and fixed to the ice-breaking rod; the ice-breaking rod is a solid metal long rod with its outer end suspended, used to knock ice off the outer conductor of the three-phase power transmission line; the first and second return springs are respectively fitted on the first and second stepped shafts, one end of each abutting against the combined support seat, and the other end abutting against the first and second friction transmission components, respectively, used to drive the corresponding friction transmission components to press against the friction plate contact side.

[0012] Preferably, the reversing device includes a first lifting disc, a second lifting disc, a disc lifting control assembly, an inner core rod, a first friction element sliding control assembly, a second friction element sliding control assembly, and an outer core sleeve; the first and second lifting discs are respectively positioned directly below the second and first torsion springs, and the second and first torsion springs are respectively controlled by the disc lifting control assembly to move the first and second lifting discs up and down; the inner core rod is arranged laterally below the first and second lifting discs, and the outer core sleeve is fixedly mounted on the traveling frame by a support arm. The inner core rod is limited and installed in the shaft hole of the outer core sleeve by the core rod limiting component; the friction component sliding control component one and the friction component sliding control component two are respectively installed at both ends of the inner core rod, and the friction transmission component two is in transmission cooperation with the friction component sliding control component one, and the friction transmission component one is in transmission cooperation with the friction component sliding control component two; a bent pipe is horizontally fixedly installed on the lifting disc one, and a strip plate is horizontally fixedly installed on the lifting disc two, and the ends of the bent pipe and the strip plate are respectively abutted and linked with the friction component sliding control component one and the friction component sliding control component two.

[0013] Preferably, the inner end of the ice-crushing stick is equipped with a striking roller, and both ends of the torsion spring are respectively fastened to the disc-shaped transmission component and the striking roller by pins; both ends of the torsion spring are respectively fastened to the disc-shaped transmission component and the striking roller by pins; the disc lifting control assembly includes a vertical rod, a torsion disc, and a crank rod; each set of disc lifting control assemblies has two vertical rods, both of which are installed on the traveling frame at one end of the striking roller, and the lifting disc one or lifting disc two is slidably sleeved on the two vertical rods. Each of the vertical rods below the second lifting disc is fitted with a disc return spring, and the upper end of the disc return spring abuts against the lower end face of the first or second lifting disc. The torsion disc is fitted outside the first or second torsion spring. The inside of the torsion disc is provided with a disc-shaped cavity. A strip-shaped crank rod through hole is provided on the outer periphery of the torsion disc, which connects to the disc-shaped cavity inside. An arc-shaped through hole is provided on the end face of the torsion disc away from the striking roller, which connects to the disc-shaped cavity inside. The crank rod is installed in the disc-shaped cavity inside the torsion disc. Its inner end is hinged to the inner wall of the torsion disc, and its outer end is suspended. A strip-shaped adjustment hole is provided on the crank rod. The torsion disc is fixed to the striking roller or to one end of the first or second torsion spring near the striking roller. The extension of the end of the first or second torsion spring away from the striking roller passes through the arc-shaped through hole and is inserted into the strip-shaped adjustment hole of the crank rod.

[0014] Preferably, the friction component sliding control assembly includes a sliding bracket, a diagonal rod, and a universal ball bearing. Two sliding brackets are symmetrically fixed on the combined support base, and L-shaped adjustment holes are provided on the sliding brackets. One end of the diagonal rod is hinged to one end of the inner core rod, and the universal ball bearing is installed on the outside of the other end of the diagonal rod and abuts against the inclined end face provided on one side of the friction transmission component. The two ends of the hinge shaft provided at the hinge point of the diagonal rod and the inner core rod are respectively limited in the transverse slots of the L-shaped adjustment holes of the two sliding brackets. A longitudinal rotation shaft is provided through the other end of the diagonal rod, and the two ends of the longitudinal rotation shaft are respectively inserted into the vertical slots of the L-shaped adjustment holes of the two sliding brackets. Two symmetrical bends are provided, and the ends of the two bends are respectively suspended above the two ends of the longitudinal rotation shaft.

[0015] The friction component sliding control assembly two includes a lifting core rod, a flange, a core rod lifting control device, a core rod limit control device, and a universal ball bearing two. The core rod lifting control device consists of a lifting device sleeve, a first contact element, and a core rod lifting return spring. The core rod limit control device consists of a limit device sleeve, a second contact element, and a second contact element return spring. The lifting device sleeve is vertically fixed on the traveling frame, and the lifting core rod is vertically slidably assembled inside the lifting device sleeve. The upper and lower ends of the core rod lifting return spring are respectively fixed to the lower end of the lifting core rod and the bottom surface inside the lifting device sleeve. The flange is sleeved and fixed on the lifting core rod, and the end of the strip plate is suspended above the flange surface. The second universal ball bearing is installed on the outer side of the upper end of the lifting core rod and abuts against the inclined end face of the friction transmission component one. The first contact component is a conical frustum structure with a smaller bottom and a larger top, and is sleeved and fixed on the lifting core rod. The limiting device sleeve is arranged longitudinally and fixed to the side wall of the lifting device sleeve. The second contact component and the contact component return spring are both installed inside the limiting device sleeve, and the front end of the second contact component penetrates into the lifting device sleeve and engages or abuts against the first contact component. The front and rear ends of the return spring are fixed to the rear end of the second contact component and the rear end inside the limiting device sleeve, respectively. The end of the inner core rod is provided with an inclined end face and penetrates into the limiting device sleeve, and is arranged opposite to the inclined end face provided on the second contact component.

[0016] Preferably, the core rod limiting assembly includes a first fixed sleeve, an inner core rod return spring, a limiting sleeve, a transverse auxiliary rod, a limiting element, a limiting element return spring, and a second fixed sleeve. Both the first and second fixed sleeves are conical frustum structures. The first fixed sleeve is securely fitted onto the inner core rod. The two ends of the inner core rod return spring are respectively fixed to the first fixed sleeve and one end of the outer core sleeve. The limiting sleeve is fixed to the outer core sleeve or a support arm. The limiting element and the limiting element return spring are both installed inside the limiting sleeve. The front end of the limiting element extends beyond the limiting sleeve and connects to the other end of the first fixed sleeve. The end face is limited and engaged. The front and rear ends of the return spring of the limiting member are fixed to the rear end of the limiting member and the inner wall of the rear end of the limiting sleeve, respectively. The transverse auxiliary rod is arranged parallel to the inner core rod and one end of it is fixed to the outer core sleeve through a support rod. The other end of the transverse auxiliary rod is provided with an inclined end face that penetrates into the limiting sleeve and is aligned with the inclined surface provided on the limiting member. The second fixed sleeve is sleeved on the inner core rod and fixed to the other end of the outer core sleeve. A limiting block is provided on the lower end face of the strip plate. The inclined end face provided on the limiting block is arranged opposite to the inclined surface provided on the second fixed sleeve.

[0017] This invention also discloses a mechanical alternating de-icing method for dual conductors of a power distribution network using a heavy-duty arm striking mechanism, comprising the following steps:

[0018] S1. Equipment mounting: Hoist the de-icing device to the three-phase power line, so that the support roller of the walking device is pressed on the upper side of the middle conductor of the three-phase power line, and the walking wheels are clamped on both sides of the middle conductor to complete the cross-line assembly of the whole machine.

[0019] S2. Initial power accumulation upon startup: Start the ice-breaking motor. The motor splits into two opposing rotational power paths through the gear transmission assembly. In the initial state, only one side of the two friction plates is in contact with each other, while the other side is separated. Only one of the two power paths is connected and input to torsion spring one or torsion spring two through the friction pair and disc-shaped transmission component. The other side remains in a power cut-off state.

[0020] S3, Single-sided knocking de-icing: The single-sided torsion spring is driven to twist, causing the ice knocker to swing around the knocking roller and hit the ice on the corresponding outer wire. After the ice knocker hits the ice layer, it is limited by the reverse resistance and cannot continue to swing. The corresponding torsion spring continues to input torque and undergoes further elastic torsional deformation to store energy.

[0021] S4. Mechanical self-reversing disconnection: The torsion spring torsion deformation drives the crank of the disc lifting control component to deflect, pressing the lifting disc downwards; the lifting disc, through the bent pipe or strip plate, links the friction component sliding control component one and the friction component sliding control component two, pulling the friction transmission component on this side to slide axially, separating the friction plates and cutting off the power on this side; at the same time, the friction transmission component on the other side is released from its limit, and under the action of the corresponding reset spring, the friction plates re-adhere, and the power on the other side is connected;

[0022] S5. Cyclic de-icing: The power-driven ice-crushing stick on the conducting side swings in the opposite direction to knock on the ice on the other side of the conductor, repeating steps S3 and S4 to achieve automatic alternating knocking on the left and right sides; the traveling wheels move at a constant speed along the middle conductor of the three-phase transmission line under the drive of the micro geared motor, continuously completing the de-icing operation of the entire line.

[0023] The beneficial effects of this invention are as follows:

[0024] (1) The whole machine of the present invention is mounted on the middle conductor of the three phases. It relies on mechanical automatic reversing to realize the alternating striking of the two outer conductors on the left and right sides with the ice-striking stick. The equipment can complete the double conductor cycle de-icing in a single online load, without the need for the equipment to go online twice for construction. This greatly shortens the de-icing period of the three-phase distribution network line, improves the efficiency of field de-icing operations, and overcomes the defect of traditional equipment that can only de-ic a single conductor in a single online load.

[0025] (2) This invention eliminates all electrically controlled commutation components such as solenoid valves, limit switches, and control boards. It relies entirely on the reaction force of the ice pop hitting the ice layer to drive the torsion spring to deform, and then the torsion spring deformation drives the entire mechanical structure to realize the power switching. There are no electrical fault hazards in the field rain, snow, condensation, low temperature freezing environment, which greatly improves the reliability of the equipment in low temperature field operation, reduces the later maintenance cost, and solves the pain point of traditional electrically controlled commutation components being prone to failure when damp at low temperature.

[0026] (3) The present invention relies on the deformation of the torsion spring to realize energy storage and commutation triggering simultaneously, without the need for additional independent commutation drive mechanism. The whole machine has simplified parts and compact structure. The hollow frame walking frame controls the weight of the whole machine while ensuring rigidity. When mounted on conventional distribution network fine diameter conductors, the running stability is stronger, overcoming the problems of traditional equipment having many commutation matching mechanisms, large weight, and poor suspension stability.

[0027] (4) The solid ice-breaking bar of the present invention relies on the torsion spring to store the impact energy and release it instantly. It has a large impact force to break ice and is excellent for breaking thick ice and frozen ice layers. It is suitable for different icing conditions in winter in the north and south of my country and has stronger versatility. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the device of the present invention;

[0029] Figure 2 This is a schematic diagram of the walking device structure of the present invention;

[0030] Figure 3 This is a schematic diagram of the power unit of the present invention;

[0031] Figure 4 This is a schematic diagram of the ice-breaking device of the present invention;

[0032] Figure 5 This is a schematic diagram of the structure of the first lifting disc, the second lifting disc, and the disc lifting control assembly of the present invention;

[0033] Figure 6 This is a schematic diagram of the disc lifting control component of the present invention and its assembly with the torsion spring;

[0034] Figure 7 This is a schematic diagram of the overall structure of the commutation device of the present invention. Figure 1 ;

[0035] Figure 8 This is a schematic diagram of the second friction component sliding control assembly of the present invention;

[0036] Figure 9 This is a schematic diagram of the overall structure of the commutation device of the present invention. Figure 2 ;

[0037] The corresponding markings in the diagram are as follows: 1. Walking device, 2. Power device, 3. Ice-breaking device, 4. Reversing device, 11. Walking frame, 12. Walking wheel, 13. Support roller, 14. Miniature geared motor, 21. Ice-breaking motor, 22. Gear transmission assembly, 221. Lower transmission shaft, 222. Transmission gear two, 223. Transmission gear three, 224. Idler wheel, 225. Transmission gear one, 226. Transmission gear four, 227. Combined support base, 31. Friction transmission assembly, 32. Torsion spring one, 33. Torsion spring two, 34. Ice-breaking stick, 341. Striking roller, 35. Return spring one, 36. Return spring two, 3101. Stepped shaft one, 3102. Stepped shaft two 3103. Friction Transmission Component 1; 3104. Friction Transmission Component 2; 3105. Friction Transmission Component 3; 3106. Friction Transmission Component 4; 3107. Disc-type Transmission Component 1; 3108. Disc-type Transmission Component 2; 3109. Friction Plate 1; 3110. Friction Plate 2; 3111. Friction Plate 3; 3112. Friction Plate 4; 41. Lifting Disc 1; 42. Lifting Disc 2; 43. Disc Lifting Control Assembly; 431. Vertical Rod; 432. Disc Return Spring; 433. Torsion Disc; 434. Arc-shaped Through Hole; 435. Crank Rod Through Hole; 436. Crank Rod; 44. Inner Core Long Rod; 45. Friction Component Sliding Control Assembly 1; 451. Sliding Bracket; 452. L 453. Adjustment hole, 454. Diagonal rod, 455. Hinge shaft, 456. Longitudinal rotation shaft, 457. Universal ball bearing 1, 46. Friction component sliding control assembly 2, 461. Lifting core rod, 462. Flange, 463. Lifting device sleeve, 464. Limiting device sleeve, 465. Contact component 1, 466. Core rod lifting return spring, 467. Contact component 2, 468. Contact component return spring, 469. Universal ball bearing 2, 47. Outer core sleeve, 48. Support arm, 49. Core rod limiting assembly, 491. Fixed platform 1, 492. Inner core rod return spring, 493. Horizontal auxiliary rod, 494. Limiting component, 495. Limiting component return spring, 496. Fixed platform 2, 411. Bend, 421. Strip plate, 422. Limiting block, 100. Three-phase power transmission line. Detailed Implementation

[0038] The present invention will be further described below with reference to the embodiments. It should be noted that these are merely examples and descriptions of the inventive concept. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the inventive concept or exceed the scope defined in the claims, they should all be considered to fall within the protection scope of the present invention.

[0039] Example 1:

[0040] like Figures 1-9As shown, the heavy-duty arm striking type power distribution network double conductor de-icing device proposed in this invention includes a walking device 1, a power device 2, an ice-knocking device 3, and a reversing device 4.

[0041] The walking device 1 is an integral rigid frame structure, straddling the middle conductor of the three-phase power transmission line 100. It is equipped with a walking wheel 12 at the bottom. The outer circular surface of the walking wheel 12 is in contact with the outer surface of the middle conductor and can roll along the conductor axis to support the whole machine and achieve uniform speed movement.

[0042] The power unit 2 is horizontally fixed in the middle of the walking device 1, and includes an ice-knocking motor 21 and a gear transmission assembly 22. The ice-knocking motor 21 drives the gear transmission assembly 22 to output two continuous rotational powers in opposite directions.

[0043] The ice-breaking device 3 is symmetrically arranged inside the power unit 2, including a friction transmission assembly 31, a torsion spring 32, a torsion spring 33, and an ice-breaking stick 34. The two reverse power supplies delivered by the power unit 2 are selectively switched on and off by the friction transmission assembly 31, which drives the torsion spring 32 and the torsion spring 33 respectively. The torsion springs undergo elastic torsional deformation under load, which has both torque transmission and impact energy storage functions, and is linked with the ice-breaking stick 34 to swing back and forth to strike the ice on both sides of the conductors of the three-phase power transmission line 100.

[0044] The reversing device 4 is located below the ice-breaking device 3 and is mechanically linked with the friction transmission assembly 31, torsion spring 1 32, and torsion spring 2 33. When the ice-breaking stick 34 hits the ice, it generates reverse resistance, which forces the corresponding torsion spring to twist and deform. The deformation displacement of the torsion spring drives the reversing device 4 to perform mechanical linkage, which pulls the friction transmission assembly 31 to switch the clutch on and off, so as to realize the alternating conduction of the left and right power paths, and drive the ice-breaking stick 34 to alternately hit the two outer conductors of the three-phase power transmission line 100.

[0045] This invention relies on a fully mechanical linkage structure, which can automatically switch directions by using the reaction force of ice-breaking impact and the deformation of torsion springs without the need for electrical control components. Once hung on the middle conductor of three phases, it can alternately remove ice from the conductors on both sides, which not only improves the efficiency of de-icing operations and avoids electrical control failures in low-temperature rain and snow environments, but also simplifies the overall structure, reduces its weight, and improves the stability of suspended operation of thin-diameter conductors.

[0046] Example 2:

[0047] like Figures 1-9 As shown, the heavy-duty arm-type striking-type power distribution network double conductor de-icing device proposed in this invention includes a walking device 1, a power device 2, an ice-breaking device 3, and a reversing device 4. The specific structures of each part are as follows:

[0048] 1. Walking mechanism:

[0049] like Figure 1 , Figure 2As shown, the traveling device 1 includes a traveling frame 11, traveling wheels 12, support rollers 13, and a micro geared motor 14. The traveling frame 11 is a rectangular hollow rigid steel plate welded frame structure, horizontally spanning directly above the intermediate conductor of the three-phase power transmission line 100. Both ends bend downwards to form support arms. The flat area in the middle of the frame serves as the mounting platform for the power unit 2, acting as the mounting base for all components of the entire machine. The traveling wheels 12 are solid annular rubber wheels, four in total, divided into two groups of two, symmetrically mounted at the bottom of the traveling frame 11 and on the left and right sides of the intermediate conductor of the three-phase power transmission line 100. The concave wheel surface of the traveling wheels 12 fits against the outer side wall of the intermediate conductor. The micro geared motor 14... The speed motor 14 is fixedly mounted at the front and rear ends of the walking frame 11. The output shaft of the micro gear motor 14 is rigidly connected to the walking wheel 12 on the same side, which can drive the walking wheel 12 to rotate around its own horizontal axis, thereby driving the whole machine to move smoothly along the axial direction of the middle conductor. The support roller 13 is mounted at the bottom center of the walking frame 11. The lower arc surface of the support roller 13 engages with the upper side of the middle conductor of the three-phase power transmission line 100, providing vertical support and limiting the whole machine from the top of the conductor. Together with the walking wheels 12 on both sides, it forms a limiting structure that clamps the conductor from the top and bottom, preventing the whole machine from moving up and down or shifting left and right during operation.

[0050] The walking frame 11 adopts a hollow frame design, which reduces the amount of steel used in the whole machine and lowers its weight while ensuring structural rigidity and strength. The support arms that bend downwards at the front and rear provide installation space for the power unit and reversing device to be arranged downwards. The support roller 13 is made of wear-resistant nylon material, and the outer diameter arc of the roller matches the outer diameter of commonly used power distribution wires, which improves the fit and limiting effect with the wires. The micro geared motor 14 adopts a low-speed output structure to ensure that the whole machine travels smoothly along the line at low speed.

[0051] 2. Power unit:

[0052] like Figure 3 As shown, the power unit 2 includes an ice-crushing motor 21 and a gear transmission assembly 22. The ice-crushing motor 21 is a unidirectional, continuously rotating servo motor, which is fixedly mounted on the mounting platform in the middle of the walking frame 11 by bolts.

[0053] The gear transmission assembly 22 includes a lower transmission shaft 221, a second transmission gear 222, a third transmission gear 223, an idler gear 224, a first transmission gear 225, a fourth transmission gear 226, and a combined support base 227. The combined support base 227 is bolted to the mounting platform in the middle of the walking frame 11. The combined support base 227 is a split-cast component with multiple sets of coaxial bearing mounting holes inside. The lower drive shaft 221 is horizontally inserted and assembled inside the bearing holes of the combined support base 227. One end of the lower drive shaft 221 extends out of the base and is rigidly fastened coaxially to the output shaft of the ice-breaking motor 21. The second and third transmission gears 222 and 223 are standard spur gears with the same module and number of teeth. They are fixed to the left and right ends of the lower drive shaft 221 by flat keys and rotate synchronously with the lower drive shaft 221 at the same angular velocity. The idler gear 224 and the fourth transmission gear 226 are rotatably mounted on the combined support base 227 directly above the third transmission gear 223. The idler gear 224 and the fourth transmission gear 226 rotate back. The axes of rotation are all parallel to the axis of the lower transmission shaft 221. The idler gear 224 is sandwiched between the transmission gear 3 223 and the transmission gear 4 226. The outer tooth surface of the idler gear 224 meshes with the tooth surfaces of both the transmission gear 3 223 and the transmission gear 4 226. The transmission gear 1 225 is rotatably mounted on the combined support 227 directly above the transmission gear 222. The axis of the transmission gear 1 225 is also parallel to the axis of the lower transmission shaft 221. The teeth of the transmission gear 1 225 mesh with the teeth of the transmission gear 222. The transmission gear 1 225 and the transmission gear 4 226 are coaxially arranged on the same axis. Relying on the gear meshing transmission and the reversing action of the idler gear 224, the transmission gear 1 225 and the transmission gear 4 226 rotate in opposite directions, ultimately outputting two continuous rotational forces with opposite directions.

[0054] The ice-knocking motor 21 continuously outputs torque in one direction, driving the lower drive shaft 221 to rotate synchronously. The two drive gears 222 and 223 at both ends of the lower drive shaft 221 rotate in the same direction. The two drive gears 222 directly mesh with and drive the first drive gear 225 to rotate in the forward direction. The third drive gear 223 meshes with and drives the fourth drive gear 226 to rotate in the reverse direction after being reversed by the idler wheel 224. The coaxially arranged drive gears 225 and 226 are respectively connected to the subsequent stepped shafts, providing reverse power input for the ice-knocking operations on the left and right sides.

[0055] 3. Ice-breaking device and friction transmission assembly:

[0056] like Figure 4As shown, the ice-knocking device 3 includes a friction transmission assembly 31, a torsion spring 32, a torsion spring 33, an ice-knocking stick 34, a return spring 35, and a return spring 36; while the friction transmission assembly 31 includes a stepped shaft 3101, a stepped shaft 3102, a friction transmission component 3103, a friction transmission component 3104, a friction transmission component 3105, a friction transmission component 3106, a disc-shaped transmission component 3107, and a disc-shaped transmission component 3108.

[0057] Stepped shaft 1 (3101) and stepped shaft 2 (3102) are horizontally mounted on combined support base 227. The two stepped shafts are arranged with their axes collinear. The outer end of stepped shaft 1 (3101) is coaxially fastened to transmission gear 4 (226), and the outer end of stepped shaft 2 (3102) is coaxially fastened to transmission gear 1 (225). They are synchronously driven to rotate by gear transmission assembly 22. Friction transmission components 1 (3103), 2 (3104), 3 (3105), and 4 (3106) are all disc-shaped components. Friction transmission components 1 (3103) and 2 (3104) are respectively fitted onto the inner end shaft sections of stepped shaft 1 (3101) and stepped shaft 2 (3102) via flat keys. The flat key structure ensures that the friction transmission components rotate synchronously with the stepped shafts, and at the same time, the friction transmission components can slide freely along the axial direction of the corresponding stepped shafts. Disc-shaped transmission component 1 (3107) and disc-shaped transmission component 2 (3106) are also present. The second type of transmission component 3108 is coaxially fixed with the third type of friction transmission component 3105 and the fourth type of friction transmission component 3106. The first type of disc transmission component 3107 shares a connecting shaft with the third type of friction transmission component 3105, and the second type of disc transmission component 3108 shares a connecting shaft with the fourth type of friction transmission component 3106. Both connecting shafts are rotatably inserted and assembled inside the combined support base 227. Friction plates 3109 and 3110 are respectively bonded and fixed on the opposite end faces of the first type of friction transmission component 3103 and the third type of friction transmission component 3105. Friction plates 3111 and 3112 are respectively bonded on the opposite end faces of the second type of friction transmission component 3104 and the fourth type of friction transmission component 3106. When the end faces of the two sets of friction plates on the same side are tightly attached to each other, the rotational torque is transmitted by friction. When the friction plates are pushed apart by external force, the power transmission is immediately cut off.

[0058] Return spring 1 35 and return spring 2 36 are respectively fitted around the shafts of stepped shaft 1 3101 and stepped shaft 2 3102. One end of return spring 1 35 abuts against the end face of the combined support 227, and the other end presses against the side of friction transmission component 1 3103. One end of return spring 2 36 abuts against the combined support 227, and the other end presses against the side of friction transmission component 2 3104. Under normal conditions, the two return springs are always in a pre-compressed state, continuously pressing the corresponding friction transmission components against the friction plate contact side to ensure that the friction plate remains in contact and conductive state when there is no external force interference. Torsion spring 1 32 and torsion spring 2 33 are equal-diameter cylindrical helical torsion spring structures. Torsion spring 1 32 is fitted around the disc-shaped transmission component 2 3104. On the outside of 108, torsion spring 2 33 is fitted on the outside of disc-shaped transmission component 1 3107; the ice-beating stick 34 is a solid tempered metal long rod structure. The inner end of the ice-beating stick 34 near the transmission structure is fixedly fitted with the striking roller 341. The two ends of torsion spring 1 32 are locked and fixed to disc-shaped transmission component 2 3108 and striking roller 341 respectively by pins. The two ends of torsion spring 2 33 are locked and fixed to disc-shaped transmission component 1 3107 and striking roller 341 respectively by pins. The end of the ice-beating stick 34 away from the striking roller 341 is suspended and extends outward to form a powerful arm structure. Under the action of the torsion spring torsion storage and release, it swings back and forth around the axis of the striking roller 341, and uses the end of the stick to hit the surface of the outer conductor to cover ice.

[0059] 4. Overall structure of the commutator:

[0060] like Figures 5-9 As shown, the reversing device 4 includes a first lifting disc 41, a second lifting disc 42, a disc lifting control assembly 43, an inner core rod 44, a first friction component sliding control assembly 45, a second friction component sliding control assembly 46, an outer core sleeve 47, a support arm 48, and a core rod limiting assembly 49.

[0061] Both lifting disc 1 (41) and lifting disc 2 (42) are circular steel plate disc components. Lifting disc 1 (41) is positioned directly below torsion spring 2 (33), and lifting disc 2 (42) is positioned directly below torsion spring 1 (32). Torsion spring 2 (33) and torsion spring 1 (32) are each equipped with a set of disc lifting control components (43). Each set of disc lifting control components (43) controls the vertical lifting movement of lifting disc 1 (41) and lifting disc 2 (42) in a corresponding linkage manner. The inner core rod 44 is a solid long cylindrical rod component, arranged laterally below lifting disc 1 (41) and lifting disc 2 (42). The outer core sleeve 47 is a hollow cylindrical component, vertically fixed to the lower end plate of the traveling frame 11 by support arm 48. The inner core rod 44 is inserted into the central inner hole of the outer core sleeve 47, and the inner core rod 44 is limited by the core rod limiting component (49), and can only slide left and right along its own axis inside the sleeve. Friction component sliding control component 1 (45) and friction component sliding control component 2 (45) are also included. Component 2 46 is respectively assembled and fixed at the left and right ends of the inner core rod 44; friction transmission component 2 3104 and friction component sliding control component 1 45 form a pushing relationship, and friction transmission component 1 3103 and friction component sliding control component 2 46 form a pushing relationship; the lower end face of the lifting disc 1 41 is fixedly welded with a bent pipe 411, and the lower end face of the lifting disc 2 42 is fixedly welded with a strip plate 421. The lower end of the bent pipe 411 is suspended above the friction component sliding control component 1 45, and the lower end of the strip plate 421 is suspended above the friction component sliding control component 2 46. When the lifting disc moves vertically up and down, the bent pipe 411 and the strip plate 421 press down on the corresponding control components to realize the clutch switching of the friction plate.

[0062] (1) Disc lifting control assembly:

[0063] like Figure 5 , Figure 6 As shown, the single-group disc lifting control assembly 43 includes two vertical rods 431, a disc return spring 432, a torsion disc 433, an arc-shaped through hole 434, a crank rod through hole 435, and a crank rod 436.

[0064] Two vertical rods 431 are vertically fixed to the traveling frame 11 plate next to the striking roller 341. Lifting disc one 41 and lifting disc two 42 are slidably fitted on the outside of the two vertical rods 431 on the same side, and can only slide up and down along the axis of the vertical rods 431. Each vertical rod 431 has a disc return spring 432 fitted on the rod section below the lifting disc. The upper end of the disc return spring 432 is pressed against the lower end of the lifting disc, and the lower end is against the mounting base below. Under normal conditions, the spring pushes the lifting disc upward to keep it in a high position. The torsion disc 433 is a hollow cylindrical structure, and the hollow part forms a disc-shaped cavity. The torsion disc 433 is fitted on the outer side wall of the corresponding torsion spring. The circumferential side wall of the torsion disc 433 has a long strip-shaped crank rod through hole 435 that connects to the internal cavity. The end face of the torsion disc 433 facing the disc-shaped transmission component has an arc-shaped through hole 434 that connects to the cavity. 436 is arranged in the internal cavity of the torsion disc 433. The inner end of the crank rod 436 is hinged to the inner wall of the cavity of the torsion disc 433. The crank rod 436 has a long strip-shaped adjustment hole. The torsion disc 433 is fastened to the end of the torsion spring near the side of the striking roller 341. The extension of the end of the torsion spring away from the striking roller 341 passes through the arc-shaped through hole 434 and is inserted into the strip-shaped adjustment hole of the crank rod 436. When the torsion spring is circumferentially torsioned by the power input, the end of the torsion spring pushes the crank rod 436 to rotate outward around the hinge point. The outer end of the crank rod 436 extends out from the crank rod through hole 435 and presses down on the corresponding lifting disc, overcoming the elastic force of the disc return spring 432 and driving the disc to move down. When the power on this side is cut off and the torsion spring returns to its original position, the crank rod 436 is retracted, and the lifting disc is reset and lifted up under the action of the disc return spring 432.

[0065] (2) Friction component sliding control assembly one:

[0066] like Figure 7As shown, the friction component sliding control assembly 45 includes a sliding bracket 451, an L-shaped adjustment hole 452, a diagonal rod 453, a longitudinal rotation shaft 456, and a universal ball bearing 457. The sliding brackets 451 are symmetrically fixed in pairs on the surface of the combined support base 227. Each sliding bracket 451 has an L-shaped adjustment hole 452, which is divided into a horizontal groove and a vertical groove. One end of the diagonal rod 453 is hinged to the end of the inner core long rod 44, and the other end of the diagonal rod 453 is fitted with the universal ball bearing 457. The spherical surface of the universal ball bearing 457 and the inclined end face machined on the side of the friction transmission component 3104 are directly opposite each other. The diagonal rod 453 and the inner core long rod 456 are connected in abutting. The hinge shaft of rod 44 is limited and locked at both ends inside the transverse groove of the L-shaped adjustment hole 452 of the sliding bracket 451 on both sides; the end of the inclined rod 453 away from the inner core rod 44 is fixed through the longitudinal rotating shaft 456, and the two ends of the longitudinal rotating shaft 456 are respectively limited inside the vertical groove of the L-shaped adjustment hole 452 on both sides; the lower ends of the two bent tubes 411 matched with the lifting disc 41 are respectively suspended above the two ends of the longitudinal rotating shaft 456. When the bent tubes 411 move down with the lifting disc, they press down against the longitudinal rotating shaft 456. The longitudinal rotating shaft 456 moves down vertically along the L-shaped adjustment hole 452 into the groove, pulling the inclined rod 453 to deflect. The universal ball 457 separates from the friction transmission component 3104. The friction transmission component 3104 slides under the action of the return spring 36. The friction plate 3111 and the friction plate 4112 are in contact to conduct power.

[0067] (3) Friction component sliding control assembly:

[0068] like Figure 8As shown, the friction component sliding control assembly 2 46 includes a lifting core rod 461, a flange 462, a lifting device sleeve 463, a limiting device sleeve 464, a first contact element 465, a core rod lifting and returning spring 466, a second contact element 467, a second contact element returning spring 468, and a second universal ball bearing 469; the lifting device sleeve 463 is vertically fixed to the plate surface of the traveling frame 11, and the lifting core rod 461 is vertically inserted and slidably assembled in the inner hole of the lifting device sleeve 463; the core rod lifting and returning... A compound spring 466 is arranged inside the sleeve 463 of the lifting device. The lower end of the spring is fixed to the bottom surface of the sleeve, and the upper end is connected to the lower end of the lifting core rod 461. The flange 462 is fixedly fitted onto the rod body of the lifting core rod 461. The end of the strip plate 421, which is matched with the lifting disc 42, is suspended above the disc surface of the flange 462. When the strip plate 421 moves down and presses down on the flange 462, it can drive the lifting core rod 461 to move down synchronously. The universal ball bearing 469 is assembled on the lifting core rod 461. 1. At the upper end, the spherical surface of the universal ball bearing 469 and the inclined end face of the friction transmission component 3103 are aligned and fitted together; the contact component 465 has a cone-shaped structure that is larger at the top and smaller at the bottom, and is fixedly fitted in the middle section of the lifting core rod 461; the limiting device sleeve 464 is laterally fixed to the side wall of the lifting device sleeve 463, and the contact component 467 and the contact component return spring 468 are all assembled inside the limiting device sleeve 464; the front end of the contact component 467 extends out of the sleeve and into the lifting device. The sleeve 463 is placed inside and can engage with the conical surface of the first contact member 465 for limiting; one end of the return spring 468 of the contact member abuts against the rear end of the second contact member 467, and the other end abuts against the inner wall of the limiting device sleeve 464; the inner core rod 44 is machined with an inclined end face towards the end of the friction member sliding control assembly 46, and this end face extends into the limiting device sleeve 464 and is aligned with the inclined end face of the second contact member 467. When the inner core rod 44 moves laterally, it can squeeze the second contact member 467 to retract and unlock.

[0069] (4) Core rod limiting assembly:

[0070] like Figure 9As shown, the core rod limiting assembly 49 includes a first fixed sleeve 491, an inner core rod return spring 492, a limiting sleeve, a transverse auxiliary rod 493, a limiting member 494, a limiting member return spring 495, and a second fixed sleeve 496. Both the first fixed sleeve 491 and the second fixed sleeve 496 are conical structures. The first fixed sleeve 491 is securely fitted onto the inner core rod 44. One end of the inner core rod return spring 492 is connected to the first fixed sleeve 491, and the other end abuts against... The inner core rod 44 rests against one end face of the outer core sleeve 47; the limiting sleeve is fixed on the outer core sleeve 47 or the matching support arm 48, and the limiting element 494 and the limiting element return spring 495 are all installed in the inner cavity of the limiting sleeve; the front end of the limiting element 494 extends out of the opening of the limiting sleeve and clamps the end face of the limiting fixing platform 491, restricting the free axial sliding of the inner core rod 44, and the two ends of the limiting element return spring 495 press against the rear end of the limiting element 494 and the inner wall of the limiting sleeve respectively; laterally The auxiliary rod 493 and the inner core long rod 44 are arranged in parallel to each other. One end of the transverse auxiliary rod 493 is fixed to the outer wall of the outer core sleeve 47 by a support rod, and the other end is machined with an inclined end face and extends into the interior of the limiting sleeve, which cooperates with the inclined end face of the limiting member 494. The fixed sleeve 496 is fitted on the inner core long rod 44 and is fastened to the other end face of the outer core sleeve 47. The lower end plate of the strip plate 421 is fixed with a limiting block 422, and the lower end of the limiting block 422 has an inclined end face. The inclined end face of the limiting block 422 is arranged directly opposite the inclined end face of the fixed sleeve 496. When the strip plate 421 moves down, the inclined surface of the limiting block 422 presses against the fixed sleeve 496, causing the outer core sleeve 47 and the transverse auxiliary rod 493 to move slightly laterally. The inclined surface of the transverse auxiliary rod 493 pushes the limiting piece 494 back, releasing the limitation on the fixed sleeve 491. The inner core rod 44 can then slide laterally under the elastic force of the inner core rod return spring 492.

[0071] This invention provides a heavy-duty arm-type striking double conductor de-icing device for power distribution networks. This invention adopts a purely mechanical linkage structure, eliminating the need for electrical components such as electronic control sensors, switches, and circuit boards. It can automatically alternate and strike the ice by relying on the reaction force of the ice layer. The whole machine is hung on the middle conductor of a three-phase line at once, and can alternately strike the two outer conductors on the left and right sides to remove ice. This solves the industry technical problems of traditional equipment, such as single-conduct de-icing per line, high failure rate of electronic control reversing, and heavy and unstable suspension.

[0072] Example 3:

[0073] like Figures 1-9 As shown, this embodiment of the mechanical alternating de-icing method for dual conductors of a power distribution network using a heavy-duty arm striking mechanism is based on the heavy-duty arm striking mechanism for dual conductors of a power distribution network disclosed in Embodiment 2, and includes the following steps:

[0074] S1. Equipment mounting and installation:

[0075] The entire de-icing device is hoisted to the position where the three-phase power transmission line 100 is erected, so that the support roller 13 of the walking device 1 presses against the upper outer wall of the middle conductor, and the two walking wheels 12 on both sides hug and hold the left and right side walls of the middle conductor, thus completing the cross-line limiting assembly of the whole machine.

[0076] S2, Initial power-on charging:

[0077] When the external power source of the ice-knocking motor 21 and the micro geared motor 14 is connected, the ice-knocking motor 21 is started. The output torque of the ice-knocking motor 21 is changed and reversed through the gear transmission component 22, resulting in two continuous rotary power sources with opposite directions of rotation. In the initial assembly state of the equipment, only one side of the friction plates on both sides is in contact with each other, while the other side is separated. Only one power source is connected and input to the torsion spring 32 or the torsion spring 33 through the friction pair and the disc-shaped transmission component to start torsion and store power. The other power source is cut off.

[0078] S3, De-icing by tapping on one side:

[0079] The power is conducted on the side where the friction transmission component 2 3104 is located. The power is transmitted to the striking roller 341 via the disc-shaped transmission component 2 3108 and the torsion spring 1 32. The torsion spring 1 32 twists and drives the ice-striking stick 34 to swing in the opposite direction around the striking roller 341. The end of the ice-striking stick 34 strikes the ice layer on the outer conductor of one side of the three-phase power transmission line 100. After the ice-striking stick 34 hits the ice layer, it is unable to continue swinging due to the reverse limiting resistance between the conductor and the ice layer. However, the power device 2 continues to output torque, which causes the torsion spring 1 32 to continue to be loaded, twisted, deformed, and store energy. During the twisting process, the internal structure of the disc lifting control component 43 drives the lifting disc 2 42 to move vertically downward, and simultaneously drives the strip plate 421 fixed to the lifting disc 2 42 to descend synchronously.

[0080] S4, Mechanical automatic reversing:

[0081] During the downward displacement of the strip plate 421, the inclined end face of the lower limit block 422 presses against the inclined surface of the fixed sleeve platform 496, pushing the outer core sleeve 47 and the transverse auxiliary rod 493 to move laterally and compressing the inner core rod return spring 492; the inclined surface of the end of the transverse auxiliary rod 493 presses against the limit member 494 to retract, the limit member 494 and the end face of the fixed sleeve platform 491 separate, releasing the limiting constraint on the inner core rod 44, and the inner core rod 44 slides laterally to one side under the rebound force of the inner core rod return spring 492; the sliding of the inner core rod 44 drives the inclined rod 453 and the longitudinal rotation shaft 456 of the friction component sliding control component 45 to move, the universal ball 457 is lifted upward and pushes the friction transmission component 3104 laterally along the stepped shaft 3102 to slide axially, and finally the friction plate 3111 and the friction plate 4112 separate from each other, cutting off the power input on this side;

[0082] At the same time, during the downward movement of the strip plate 421, the lower end plate surface presses down on the flange 462. The flange 462 drives the lifting core rod 461 to move downward along the lifting device sleeve 463. The upper universal ball bearing 469 moves downward and disengages from the inclined end face of the friction transmission component 3103. The friction transmission component 3103 loses its pushing limit and slides towards the contact side under the elastic force of the return spring 35. The friction plate 3109 and the friction plate 3110 are tightly contacted, and the power is smoothly conducted on the side where the torsion spring 33 is located.

[0083] When torsion spring 2 33 is energized and twists, it causes ice-pounding stick 34 to swing forward, striking the outer conductor on the other side of the three-phase power transmission line 100 and causing it to become covered in ice. Similarly, after ice-pounding stick 34 stops swinging due to the ice layer, torsion spring 2 33 continues to twist and deform, causing lifting disc 1 41 to move downward through the matching disc lifting control component 43. The downward movement of lifting disc 1 41 presses down on the longitudinal rotating shaft 456 through the bent pipe 411. The longitudinal rotating shaft 456 moves downward along the vertical groove of the L-shaped adjusting hole 452, simultaneously pulling the diagonal rod 453 to deflect and causing the inner core rod 44 to move laterally to the other side. After displacement, the second contact member 467 is pressed, releasing the locking limit on the first contact member 465. The core rod lifting return spring 466 pushes the lifting core rod 461 upward, thereby driving the universal ball bearing 469 to move upward synchronously. The lifting of the universal ball bearing 469 pushes the friction transmission member 3103 to slide, and the friction plates 3109 and 3110 separate and break the force. The universal ball bearing 457 moves downward synchronously, and the friction transmission member 3104 returns to its position under the action of the return spring 36. The friction plates 3111 and 3112 re-adhere to conduct the power on the side of the torsion spring 32.

[0084] S5. Continuous de-icing:

[0085] The aforementioned power on / off and ice-knocking reversal actions are continuously repeated, enabling the ice-knocking stick 34 to alternately knock on the ice covering the two outer conductors; the micro reduction motor 14 continuously drives the walking wheel 12 to rotate at low speed, driving the whole machine to move forward at a constant speed along the middle conductor, continuously completing the ice removal operation of the entire line.

[0086] All reversing actions of the machine are achieved through pure mechanical linkage based on the reaction force of the ice impact and the deformation of the torsion spring, with no electronic control components involved in the reversing control throughout the process.

[0087] The above is an exemplary description of the invention. Obviously, the specific implementation of the invention is not limited to the above-described manner. Any non-substantial improvement made using the inventive concept and technical solution of the invention, or the direct application of the inventive concept and technical solution to other situations without modification, is within the protection scope of the invention.

Claims

1. A heavy-duty arm-type impact-type de-icing device for power distribution networks with dual conductors, characterized in that, It includes a walking device (1), a power device (2), an ice-breaking device (3), and a reversing device (4). The walking device (1) is an integral rigid frame structure, which is placed directly above the middle conductor of the three-phase power transmission line (100). The bottom is provided with a walking wheel (12). The outer surface of the walking wheel (12) is in contact with the outer surface of the middle conductor and can roll along the conductor axis to support the whole machine and achieve uniform speed movement. The power unit (2) is horizontally fixed in the middle of the walking device (1), and includes an ice-knocking motor (21) and a gear transmission assembly (22). The ice-knocking motor (21) drives the gear transmission assembly (22) to output two continuous rotational powers in opposite directions. The ice-knocking device (3) is symmetrically arranged inside the power device (2), including a friction transmission assembly (31), a torsion spring one (32), a torsion spring two (33) and an ice-knocking stick (34); the two reverse power supplies delivered by the power device (2) are selectively switched on and off by the friction transmission assembly (31) to drive the torsion spring one (32) and the torsion spring two (33) respectively. The torsion springs undergo elastic torsional deformation under load, which has both torque transmission and impact energy storage functions and is linked to the ice-knocking stick (34) to swing back and forth to knock ice on the conductors on both sides of the three-phase power transmission line (100); The reversing device (4) is located below the ice-breaking device (3) and is mechanically linked with the friction transmission assembly (31), torsion spring one (32), and torsion spring two (33). The ice-breaking stick (34) impacts the ice and generates reverse resistance, forcing the corresponding torsion spring to twist and deform. The torsion spring deformation displacement drives the reversing device (4) to perform mechanical linkage, pulling the friction transmission assembly (31) to switch the clutch on and off, realizing the alternating conduction of the left and right power, driving the ice-breaking stick (34) to alternately strike the two outer conductors of the three-phase power transmission line (100).

2. The heavy-duty arm-type impact-type power distribution network double-conductor de-icing device according to claim 1, characterized in that, The walking device (1) includes a walking frame (11), walking wheels (12), and support rollers (13). The walking frame (11) is a rectangular hollow rigid frame, which is horizontally positioned above the middle conductor of the three-phase power transmission line (100). The front and rear ends extend to form support arms, and the middle part is the mounting platform of the power device (2), serving as the mounting base for all components of the machine. The walking wheels (12) are solid circular rubber wheels, four in total, divided into two groups, two in each group, symmetrically mounted on the bottom of the walking frame (11) and on both sides of the middle conductor of the three-phase power transmission line (100). The wheel body of the walking wheel (12) is attached to the side of the middle conductor and can rotate freely around its own horizontal axis under the drive of the micro reduction motor (14), driving the whole machine to roll smoothly along the conductor axis. The support rollers (13) are mounted on the bottom of the walking frame (11) and engaged on the upper side of the middle conductor of the three-phase power transmission line (100), serving as the support and limit for the whole machine.

3. The heavy-duty arm-type impact-type power distribution network double-conductor de-icing device according to claim 2, characterized in that, The power unit (2) includes an ice-knocking motor (21) and a gear transmission assembly (22); the ice-knocking motor (21) is a servo motor that operates continuously in one direction and is fixedly installed on the middle mounting platform of the walking frame (11); the gear transmission assembly (22) includes a lower drive shaft (221), a second drive gear (222), a third drive gear (223), an idler gear (224), a first drive gear (225), and a fourth drive gear (226). A combined support base (227) is installed on the middle mounting platform of the walking frame (11). The lower drive shaft (221) is installed through the combined support base (227), and one end of it is rigidly connected to the output shaft of the ice-breaking motor (21). The second drive gear (222) and the third drive gear (223) are straight cylindrical gears with the same structure. They are fixed to both ends of the shaft of the lower drive shaft (221) by flat keys and rotate synchronously and at the same speed as the lower drive shaft (221). The idler wheel (224) and the fourth transmission gear (226) are both mounted on the combined support base (227) directly above the third transmission gear (223), and their axes are parallel to the axis of the lower transmission shaft (221). The idler wheel (224) is located between the third transmission gear (223) and the fourth transmission gear (226), and its outer circular tooth surface meshes with the outer circular tooth surfaces of the fourth transmission gear (226) and the third transmission gear (223). The first transmission gear (225) is mounted on the combined support seat (227) directly above the second transmission gear (222), and the axis of the first transmission gear (225) is parallel to the axis of the lower transmission shaft (221). The outer tooth surface of the first transmission gear (225) meshes with the outer tooth surface of the second transmission gear (222). The first transmission gear (225) and the fourth transmission gear (226) are on the same axis. Relying on the meshing of the gears and the reversing action of the idler wheel (224), the first transmission gear (225) and the fourth transmission gear (226) rotate in opposite directions, thereby outputting two rotational forces in opposite directions.

4. The heavy-duty arm-type impact-type power distribution network double-conductor de-icing device according to claim 3, characterized in that, The friction transmission assembly (31) includes a stepped shaft one (3101), a stepped shaft two (3102), a friction transmission component one (3103), a friction transmission component two (3104), a friction transmission component three (3105), a friction transmission component four (3106), a disc transmission component one (3107), and a disc transmission component two (3108). The stepped shaft one (3101) and stepped shaft two (3102) are horizontally mounted on the combined support base (227). The two shafts are arranged coaxially. The outer end of stepped shaft one (3101) is coaxially fixed to the transmission gear four (226), and the outer end of stepped shaft two (3102) is coaxially fixed to the transmission gear one (225). They are synchronously driven to rotate by the gear transmission assembly (22). The friction transmission component one (3103), friction transmission component two (3104), friction transmission component three (3105), and friction transmission component four (3106) are all disc-shaped components. The friction transmission component one (3103) and friction transmission component two (3104) are respectively connected to the inner ends of stepped shaft one (3101) and stepped shaft two (3102) by flat keys and can slide along the axis of stepped shaft one (3101) and stepped shaft two (3102) respectively. The disc-shaped transmission component one (3107) and disc-shaped transmission component two (3108) are coaxially fixed with friction transmission component three (3105) and friction transmission component four (3106) respectively, and the common connecting shaft of disc-shaped transmission component one (3107) and friction transmission component three (3105), and disc-shaped transmission component two (3108) and friction transmission component four (3106) are all mounted on the combined support base (227). Friction plate one (3109) and friction plate two (3110) are respectively bonded to the opposite end faces of friction transmission component one (3103) and friction transmission component three (3105). Friction plate three (3111) and friction plate four (3112) are respectively bonded to the opposite end faces of friction transmission component two (3104) and friction transmission component four (3106). When friction plate one (3109) and friction plate two (3110), and friction plate three (3111) and friction plate four (3112) are in contact with each other, torque transmission is achieved. When they are separated, power input is cut off.

5. The heavy-duty arm impact-type power distribution network double-conductor de-icing device according to claim 4, characterized in that, The ice-knocking device (3) also includes a return spring one (35) and a return spring two (36); the torsion spring one (32) and the torsion spring two (33) are equal-diameter cylindrical helical torsion springs, respectively fitted on the outside of the disc-shaped transmission component two (3108) and the disc-shaped transmission component one (3107), and one end of the torsion spring one (32) and the torsion spring two (33) are respectively engaged and fixed to the disc-shaped transmission component two (3108) and the disc-shaped transmission component one (3107), and the other end of both are engaged and fixed to the ice-knocking stick (34); The ice-knocking stick (34) is a solid metal rod with its outer end suspended in the air. It is used to knock ice off the outer conductor of the three-phase power transmission line (100). The reset spring one (35) and reset spring two (36) are respectively sleeved on the stepped shaft one (3101) and stepped shaft two (3102). One end of each spring abuts against the combined support seat (227), and the other end abuts against the friction transmission component one (3103) and friction transmission component two (3104) respectively. They are used to drive the corresponding friction transmission component to press against the friction plate contact side.

6. The heavy-duty arm-type impact-type power distribution network double-conductor de-icing device according to claim 4, characterized in that, The reversing device (4) includes a first lifting disc (41), a second lifting disc (42), a disc lifting control assembly (43), an inner core rod (44), a first friction component sliding control assembly (45), a second friction component sliding control assembly (46), and an outer core sleeve (47). The lifting disc one (41) and lifting disc two (42) are respectively located directly below the torsion spring two (33) and the torsion spring one (32). The torsion spring two (33) and the torsion spring one (32) are controlled by the disc lifting control component (43) to lift the lifting disc one (41) and the lifting disc two (42) respectively. The inner core rod (44) is arranged horizontally below the first lifting disc (41) and the second lifting disc (42). The outer core sleeve (47) is fixedly installed on the walking frame (11) by the support arm (48). The inner core rod (44) is limited and installed in the axial hole of the outer core sleeve (47) by the core rod limiting assembly (49). The friction component sliding control assembly one (45) and the friction component sliding control assembly two (46) are respectively installed at both ends of the inner core rod (44), and the friction transmission component two (3104) is in transmission cooperation with the friction component sliding control assembly one (45), and the friction transmission component one (3103) is in transmission cooperation with the friction component sliding control assembly two (46). A bent pipe (411) is fixedly installed horizontally on the first lifting disc (41), and a strip plate (421) is fixedly installed horizontally on the second lifting disc (42). The ends of the bent pipe (411) and the strip plate (421) are respectively abutted and linked with the first friction component sliding control assembly (45) and the second friction component sliding control assembly (46).

7. The heavy-duty arm-type impact-type power distribution network double-conductor de-icing device according to claim 6, characterized in that, The inner end of the popping stick (34) is equipped with a striking roller (341). Both ends of the torsion spring (32) are fastened to the disc-shaped transmission component (3108) and the striking roller (341) respectively by pins. Both ends of the torsion spring (33) are fastened to the disc-shaped transmission component (3107) and the striking roller (341) respectively by pins. The disc lifting control assembly (43) includes a vertical rod (431), a torsion disc (433), and a crank rod (436); each set of disc lifting control assemblies (43) has two vertical rods (431) which are installed on the walking frame (11) at one end of the striking roller (341). The lifting disc one (41) or the lifting disc two (42) is slidably sleeved on the two vertical rods (431). The vertical rod (431) below the lifting disc one (41) or the lifting disc two (42) is sleeved with a disc return spring (432), and the upper end of the disc return spring (432) abuts against the lower end face of the lifting disc one (41) or the lifting disc two (42). The torsion disc (433) is sleeved on the outside of the torsion spring one (32) or the torsion spring two (33). The torsion disc (433) has a disc-shaped cavity inside. The outer periphery of the torsion disc (433) has a strip-shaped crank rod through hole (435) that connects to the disc-shaped cavity inside. The end face of the torsion disc (433) away from the striking roller (341) has an arc-shaped through hole (434) that connects to the disc-shaped cavity inside. The crank rod (436) is installed in a disc-shaped cavity inside the torsion disc (433). Its inner end is hinged to the inner wall of the torsion disc (433), and its outer end is suspended. The crank rod (436) is provided with a strip-shaped adjustment hole. The torsion disc (433) is fixed to the striking roller (341) or to one end of the torsion spring one (32) or torsion spring two (33) near the striking roller (341). The extension of the end of the torsion spring one (32) or torsion spring two (33) away from the striking roller (341) passes through the arc-shaped through hole (434) and is inserted into the strip-shaped adjustment hole of the crank rod (436).

8. The heavy-duty arm-type impact-type power distribution network double-conductor de-icing device according to claim 6, characterized in that, The friction component sliding control assembly (45) includes a sliding bracket (451), a diagonal rod (453), and a universal ball bearing (457). Two sliding brackets (451) are symmetrically fixed on the combined support base (227). An L-shaped adjustment hole (452) is provided on the sliding bracket (451). One end of the diagonal rod (453) is hinged to one end of the inner core rod (44). The universal ball bearing (457) is installed on the outside of the other end of the diagonal rod (453) and abuts against the inclined end face provided on one side of the friction transmission component (3104). The hinge shaft (454) at the hinge joint of the diagonal rod (453) and the inner core rod (44) is respectively limited at both ends in the transverse slots of the L-shaped adjustment holes (452) of the two sliding brackets (451). The other end of the diagonal rod (453) is provided with a longitudinal rotation shaft (456), and the two ends of the longitudinal rotation shaft (456) are respectively inserted into the vertical slots of the L-shaped adjustment holes (452) of the two sliding brackets (451). Two symmetrical bends (411) are provided, and the ends of the two bends (411) are respectively suspended above the two ends of the longitudinal rotation shaft (456). The friction component sliding control assembly two (46) includes a lifting core rod (461), a flange (462), a core rod lifting control device, a core rod limit control device, and a universal ball bearing two (469). The core rod lifting control device consists of a lifting device sleeve (463), a first contact element (465), and a core rod lifting return spring (466). The core rod limit control device consists of a limit device sleeve (464), a second contact element (467), and a second contact element return spring (468). The lifting device sleeve (463) is vertically fixed on the traveling frame (11). The lifting core rod (461) is vertically slidably assembled inside the lifting device sleeve (463). The upper and lower ends of the core rod lifting return spring (466) are respectively fixed to the lower end of the lifting core rod (461) and the inner bottom surface of the lifting device sleeve (463). The flange (462) is sleeved and fixed on the lifting core rod (461). The end of the strip plate (421) is suspended on the flange (462) surface. The universal ball bearing 2 (469) is installed on the outer side of the upper end of the lifting core rod (461) and abuts against the inclined end face of the friction transmission component 1 (3103) on one side; the abutting component 1 (465) is a conical truncated structure with a smaller bottom and a larger top and is sleeved and fixed on the lifting core rod (461); the limiting device sleeve (464) is arranged longitudinally and fixed to the side wall of the lifting device sleeve (463); the abutting component 2 (467) and the abutting component return spring (468) are both installed on the limiting device. The first part is placed inside the sleeve (464), and the front end of the second contact part (467) passes through the sleeve (463) of the lifting device and engages or abuts against the first contact part (465). The front and rear ends of the return spring (468) of the contact part are respectively fixed to the rear end of the second contact part (467) and the rear end of the sleeve (464) of the limiting device. The end of the inner core rod (44) is provided with an inclined end face and passes through the sleeve (464) of the limiting device, and is arranged opposite to the inclined end face provided on the second contact part (467).

9. The heavy-duty arm-type impact-type power distribution network double-conductor de-icing device according to claim 6, characterized in that, The core rod limiting assembly (49) includes a first fixed sleeve (491), an inner core rod return spring (492), a limiting sleeve, a transverse auxiliary rod (493), a limiting member (494), a limiting member return spring (495), and a second fixed sleeve (496). The first fixed sleeve (491) and the second fixed sleeve (496) are both conical truncated structures. The first fixed sleeve (491) is fastened to the inner core rod (44). The two ends of the inner core rod return spring (492) are respectively fixed to the first fixed sleeve (491) and one end of the outer core sleeve (47). The limiting sleeve is fixed on the outer core sleeve (47) or the support arm (48). The limiting member (494) and the limiting member return spring (495) are both installed inside the limiting sleeve. The front end of the limiting member (494) extends through to the outside of the limiting sleeve and is limited and engaged with the other end face of the fixed sleeve (491). The front and rear ends of the limiting member return spring (495) are respectively fixed to the rear end of the limiting member (494) and the inner wall of the rear end of the limiting sleeve. The transverse auxiliary rod (493) is arranged parallel to the inner core long rod (44) and one end of it is fixed to the outer core sleeve (47) by a support rod; the other end of the transverse auxiliary rod (493) is provided with an inclined end face and penetrates into the limiting sleeve, and is aligned with the inclined surface provided on the limiting member (494); The fixed sleeve (496) is sleeved on the inner core rod (44) and fixed to the other end of the outer core sleeve (47). A limit block (422) is provided on the lower end face of the strip plate (421). The inclined end face provided on the limit block (422) is arranged opposite to the inclined surface provided on the fixed sleeve (496).

10. A mechanical alternating de-icing method for dual conductors of a power distribution network using a heavy-duty arm-type striking mechanism, employing the heavy-duty arm-type striking mechanism for dual conductors of a power distribution network as described in any one of claims 1 to 9, characterized in that... Includes the following steps: S1. Equipment mounting: The de-icing device is hoisted to the three-phase power transmission line (100), so that the support roller (13) of the walking device (1) is pressed on the upper side of the middle conductor of the three-phase power transmission line (100), and the walking wheel (12) is clamped on both sides of the middle conductor to complete the cross-line assembly of the whole machine. S2, Initial power storage: Start the ice-breaking motor (21), and the motor splits into two opposing rotational forces through the gear transmission assembly (22); In the initial state, only one side of the friction plates on both sides is in contact with each other, and the other side is separated from each other. Only one of the two power lines is connected and input to the first torsion spring (32) or the second torsion spring (33) through the friction pair and the disc-shaped transmission component, while the other side remains in a power cut-off state. S3, Single-sided knocking de-icing: The single-sided torsion spring is driven to twist, causing the knocking stick (34) to swing around the knocking roller (341) and hit the corresponding outer wire covered with ice; after the knocking stick (34) hits the ice layer, it is limited by the reverse resistance and cannot continue to swing. The corresponding torsion spring continues to input torque to undergo further elastic torsional deformation to store energy. S4, Mechanical self-reversing disconnection: The torsion spring torsion deformation drives the crank rod (436) of the disc lifting control component (43) to deflect, pressing the lifting disc downwards; the lifting disc, through the bent pipe (411) or strip plate (421), links the friction component sliding control component one (45) and the friction component sliding control component two (46), pulling the friction transmission component on this side to slide axially, the friction plate separates and cuts off the power on this side; at the same time, the friction transmission component on the other side is released from the limit, and the friction plate re-fits under the action of the corresponding reset spring, and the power on the other side is connected; S5. Reciprocating de-icing: The power-driven ice-crushing stick on the conducting side swings in the opposite direction to knock on the ice covering the conductor on the other side, repeating steps S3 and S4 to achieve automatic alternating knocking on the left and right sides; the walking wheel (12) moves at a constant speed along the middle conductor of the three-phase transmission line (100) under the drive of the micro reduction motor (14) to continuously complete the de-icing operation of the entire line.

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