A windproof insulator for transmission line
By designing a wind-driven locking shaft and abutment wheel system on the composite insulator, the connection strength between the cylinder and the mandrel is enhanced, the vibration problem caused by wind is solved, and the service life of the composite insulator is extended.
Patent Information
- Application Number
- CN202510912125.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-03
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2045-07-03
AI Technical Summary
When composite insulators are subjected to wind in outdoor high altitude environments, they will vibrate, resulting in a decrease in mechanical strength and a shortened service life.
The design of mandrel, sheath, umbrella skirt, elastic sleeve, cylinder, adjustment assembly, metal tool, locking ring, locking groove, locking shaft, abutment arm, abutment wheel and wind assembly is adopted. The locking shaft is driven by wind power to rotate, and the contact frequency and extrusion strength of the abutment wheel and the elastic sleeve change, enhance the connection strength, and use the adjustment assembly and damping arm to suppress vibration.
It effectively suppresses the vibration of wind power on the composite insulator, improves the connection strength between the cylinder and the core rod, and extends the service life.
Smart Images

Figure CN120413207B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of composite insulators, in particular to a windproof insulator for a transmission line. Background Art
[0002] Composite insulators are devices used in power systems to withstand voltage and mechanical stress. They primarily consist of a core rod, a composite insulating silicone rubber sheath surrounding the core rod, and hardware fixtures mounted at each end. Currently, composite insulators are typically installed between conductors at different potentials or between a conductor and a ground potential component.
[0003] Because composite insulators are typically installed outdoors at high altitudes, they are subject to the constant effects of wind. This wind can cause vibrations in the composite insulators, leaving them in a state of fatigue for extended periods. This can lead to aging and a decrease in mechanical strength, impacting the composite insulator's service life and the reliable operation of the power system. Summary of the Invention
[0004] In order to reduce the impact of wind on the service life of composite insulators, the present application provides a windproof insulator for transmission lines.
[0005] The present application provides a transmission line windproof insulator adopting the following technical solution:
[0006] A windproof insulator for a power transmission line comprises a core rod, a sheath is provided on the outer wall of the core rod, a plurality of sheds are provided on the outer wall of the sheath, a group of elastic sleeves are sleeved on the sheath, a cylinder is inserted in the elastic sleeve, the cylinder is connected to the core rod, an adjustment component is provided in the cylinder, the adjustment component is used to suppress the vibration of the core rod, a hardware is provided on the end of the cylinder away from the core rod, a locking ring is sleeved on the elastic sleeve, the cylinder and the sheath are both fixedly connected to the locking ring, a locking groove is provided on the locking ring facing the side of the elastic sleeve, a locking shaft is rotatably provided in the locking groove, a plurality of abutment arms are fixedly provided on the side wall of the locking shaft, an abutment wheel is rotatably provided on the abutment arm, the abutment wheel is used to abut with the elastic sleeve, a wind force component is provided on the locking ring, and the wind force component is used to drive the locking shaft to rotate.
[0007] By adopting the above technical solution, when wind force acts on the composite insulator, on the one hand, the regulating component suppresses the vibration of the core rod, and on the other hand, the wind force component uses the wind force to rotate the locking shaft, and the locking shaft drives the abutment arm to rotate, so that the abutment wheel on the abutment arm abuts against the elastic sleeve. When the wind force is greater, the wind speed is faster, so that the frequency of contact between the abutment wheel and the elastic sleeve is higher, and the squeezing effect of the abutment wheel on the elastic sleeve is stronger. The elastic sleeve is deformed under the squeezing effect of the abutment wheel, and the deformed elastic sleeve fits more tightly on the sheath and the cylinder, thereby improving the connection strength between the cylinder and the core rod and reducing the influence of wind force on the service life of the composite insulator.
[0008] Preferably, a first ring seat is fixedly provided at one end of the locking ring, the first ring seat is sleeved on the cylinder, and the first ring seat is fixedly connected to the cylinder; a second ring seat is fixedly provided at the other end of the locking ring, the second ring seat is sleeved on the sleeve, and the second ring seat is fixedly connected to the sleeve; the elastic sleeve is located between the first ring seat and the second ring seat, one end of the elastic sleeve abuts against the first ring seat, and the other end of the elastic sleeve abuts against the second ring seat.
[0009] By adopting the above technical solution, the locking ring and the elastic sleeve are limited by the first ring seat and the second ring seat, thereby reducing the movement of the elastic sleeve along the axial direction of the core rod.
[0010] Preferably, the wind power component includes an upper drive gear, a lower drive gear and a plurality of fan blades, an upper ring groove and a lower ring groove are provided on the outer ring wall of the locking ring, the upper drive gear is rotatably set in the upper ring groove, the lower drive gear is rotatably set in the lower ring groove, the top end of the fan blade is fixedly connected to the upper drive gear, and the bottom end of the fan blade is fixedly connected to the lower drive gear, the upper transmission gear is fixedly set at the top end of the locking shaft, the upper transmission gear is rotatably set in the upper ring groove, and the upper transmission gears are all meshed with the upper drive gear, the lower transmission gear is fixedly set at the bottom end of the locking shaft, the lower transmission gear is rotatably set in the lower ring groove, and the lower transmission gears are all meshed with the lower drive gear.
[0011] By adopting the above technical solution, the fan blades use wind force to drive the upper drive gear and the lower drive gear to rotate, the upper drive gear drives the upper transmission gear to rotate, the lower drive gear drives the lower transmission gear to rotate, and the upper transmission gear and the lower transmission gear drive the locking shaft to rotate.
[0012] Preferably, a plurality of hinge shafts are rotatably arranged in the locking groove, a reset arm is fixedly arranged on the hinge shaft, the reset arm is used to abut against the abutment wheel, a plurality of reset torsion springs are sleeved on the hinge shaft, one end of the reset torsion spring is fixedly connected to the hinge shaft, and the other end of the reset torsion spring is fixedly connected to the inner wall of the locking groove.
[0013] By adopting the above technical solution, when the wind drives the abutment wheel to rotate, the abutment wheel squeezes the reset arm when passing through the reset arm, so that the reset torsion spring is compressed. When the wind force is small, the reset torsion spring rebounds to make the reset arm push the abutment wheel, so that the abutment wheel is separated from the elastic sleeve, thereby reducing the situation where the abutment wheel squeezes the elastic sleeve for a long time and causes the elastic sleeve to deform.
[0014] Preferably, the adjustment assembly includes an adjusting hammer and several damping arms, a first universal head is provided at one end of the damping arm, the first universal head is rotatably connected to the side wall of the adjusting hammer, a second universal head is provided at the other end of the damping arm, the second universal head is rotatably connected to the side wall of the cylinder, a steel wire rope is provided at the top of the adjusting hammer, and the steel wire rope is connected to the top wall of the cylinder.
[0015] By adopting the above technical solution, the adjusting hammer is suspended in the cylinder under the action of the wire rope. When wind force acts on the composite insulator, the adjusting hammer swings in the opposite direction, and the opposite torque generated by the adjusting hammer is used to offset part of the wind force. When the adjusting hammer swings, the damping arm is extended and retracted to achieve buffering, thereby suppressing the vibration of the composite insulator.
[0016] Preferably, the damping arm includes a damping cylinder, a first damping rod, a first piston head, a second damping rod and a second piston head, the first piston head and the second piston head are both slidably arranged in the damping cylinder, the first piston head is fixedly connected to one end of the first damping rod on a side away from the second piston head, the other end of the first damping rod passes through the end wall of the damping cylinder, the end of the first damping rod located outside the damping cylinder is rotatably connected to the first universal head, the second piston head is fixedly connected to one end of the second damping rod on a side away from the first piston head, the other end of the second damping rod passes through the end wall of the damping cylinder, the end of the second damping rod located outside the damping cylinder is rotatably connected to the second universal head, the side of the first piston head away from the second piston head is a first chamber, the side of the second piston head away from the first piston head is a second chamber, an intermediate chamber is formed between the first piston head and the second piston head, a first input pipe and a first output pipe are arranged between the first chamber and the intermediate chamber, a first input valve is provided on the first input pipe, a first output valve is provided on the first output pipe, a second input pipe and a second output pipe are arranged between the second chamber and the intermediate chamber, a second input valve is provided on the second input pipe, and a second output valve is provided on the second output pipe.
[0017] By adopting the above technical solution, when the damping arm is extended and retracted, the first piston head and the second piston head move in the damping cylinder, thereby squeezing the gas-liquid medium in the first chamber, the second chamber and the middle chamber. When the first chamber shrinks, the gas-liquid medium in the first chamber enters the middle chamber through the first input pipe. When the first chamber expands, the gas-liquid medium in the middle chamber enters the first chamber through the first output pipe. When the second chamber shrinks, the gas-liquid medium in the second chamber enters the middle chamber through the second input pipe. When the second chamber expands, the gas-liquid medium in the middle chamber enters the second chamber through the second output pipe.
[0018] Preferably, a socket is fixedly provided on the side of the hardware fitting toward the cylinder, and a conical plug is fixedly provided on the side of the socket away from the hardware fitting, the diameter of the conical plug facing the socket end is equal to the diameter of the socket facing the conical plug away from the socket end, and the diameter of the conical plug facing the socket end is larger than the diameter of the conical plug away from the socket end, a holder is fixedly provided on the side of the cylinder facing the hardware fitting, an insertion groove is provided on the holder side away from the cylinder, the insertion groove is for the socket and the conical plug to be inserted, the inner wall of the insertion groove is used to fit with the outer wall of the socket and the outer wall of the conical plug, a first flange is sleeved on the hardware fitting, the first flange is fixedly connected to the hardware fitting, a plurality of first through holes are provided on the first flange, a second flange is sleeved on the holder, the second flange is fixedly connected to the holder, a plurality of second through holes are provided on the second flange, screws are inserted into the first through holes and the second through holes relative to each other, a group of nuts are threaded on the screw, and the nuts are used to clamp the first flange and the second flange.
[0019] By adopting the above technical solution, when the hardware is connected to the cylinder, the socket and the conical plug are inserted into the insertion groove on the card seat, and then the screw is passed through the first through hole and the second through hole that are relatively set, and finally the first flange and the second flange are clamped using a nut to achieve the effect of connecting the hardware and the cylinder.
[0020] Preferably, a guide ring groove is provided on the side wall of the socket, a plurality of snap-fit grooves are provided on the inner wall of the guide ring groove, a plurality of telescopic grooves are provided on the inner wall of the insertion groove, a telescopic spring is provided in the telescopic groove, one end of the telescopic spring is fixedly connected to the telescopic groove, a telescopic arm is fixedly provided on the other end of the telescopic spring, a spherical surface is provided on the end of the telescopic arm away from the telescopic spring, a plurality of guide balls are rotatably provided on the spherical surface, the guide balls are used to abut against the side wall of the conical plug, the inner wall of the guide ring groove and the inner wall of the snap-fit groove, and the guide ring groove and the snap-fit groove are for inserting the telescopic arm and the guide ball.
[0021] By adopting the above technical solution, during the process of inserting the socket and the conical plug into the insertion slot, the conical plug first squeezes the telescopic arm, causing the telescopic arm to gradually retract into the telescopic slot, thereby facilitating the insertion of the socket into the insertion slot. When the guide ring groove and the telescopic slot are arranged relative to each other, the telescopic arm is inserted into the guide ring groove, and then the clamping seat and the socket are rotated relative to each other, so that the telescopic arm is inserted into the clamping slot, thereby achieving the effect of pre-positioning the clamping seat and the socket, facilitating the subsequent connection of the first flange and the second flange. At the same time, the telescopic spring is used to buffer the vibration between the hardware and the cylinder.
[0022] In summary, this application includes at least one of the following beneficial technical effects:
[0023] 1. By arranging the core rod, sheath, shed, elastic sleeve, cylinder, adjustment assembly, hardware, locking ring, locking groove, locking shaft, abutment arm, abutment wheel and wind assembly, when wind force acts on the composite insulator, the adjustment assembly and abutment wheel work together to reduce the impact of wind force on the service life of the composite insulator;
[0024] 2. By setting up an upper drive gear, a lower drive gear, a plurality of fan blades, an upper ring groove, a lower ring groove, an upper transmission gear and a lower transmission gear, the wind force is used to drive the locking shaft to rotate;
[0025] 3. By setting the hinge shaft, reset arm and reset torsion spring, the deformation of the elastic sleeve caused by the abutment wheel squeezing the elastic sleeve for a long time can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a cross-sectional view of a windproof insulator for a transmission line in an embodiment of the present application.
[0027] Figure 2 It is a cross-sectional view showing the connection relationship between the barrel and the core rod in the embodiment of the present application.
[0028] Figure 3 It is a cross-sectional view showing the connection relationship between the fan blades and the locking ring in the embodiment of the present application.
[0029] Figure 4 It is a cross-sectional view showing the positional relationship between the fan blades and the locking ring in the embodiment of the present application.
[0030] Figure 5 yes Figure 4 Enlarged view of part A.
[0031] Figure 6 It is a cross-sectional view showing the connection relationship between the first universal head and the second universal head in the embodiment of the present application.
[0032] Figure 7 It is a cross-sectional view showing the positional relationship between the first cavity and the second cavity in the embodiment of the present application.
[0033] Figure 8 It is a cross-sectional view showing the connection relationship between the first flange and the second flange in the embodiment of the present application.
[0034] Figure 9 It is a cross-sectional view showing the connection relationship between the card holder and the socket in the embodiment of the present application.
[0035] Figure 10 It is a cross-sectional view showing the connection relationship between the guide ball and the telescopic arm in the embodiment of the present application.
[0036] Explanation of the accompanying symbols: 1. core rod; 11. sheath; 12. umbrella skirt; 2. elastic sleeve; 21. first ring seat; 22. second ring seat; 3. cylinder; 31. clamping seat; 32. insertion groove; 33. telescopic groove; 34. telescopic spring; 35. telescopic arm; 36. guide ball; 361. spherical surface; 4. hardware; 41. socket; 42. conical plug; 43. guide ring groove; 44. clamping groove; 5. abutment wheel; 51. locking ring; 511. upper ring groove; 512. lower ring groove; 513. locking groove; 52. locking shaft; 53. abutment arm; 54. reset arm; 541. hinge shaft; 542. reset torsion spring; 6. wind assembly; 61. upper drive gear; 611. upper transmission gear; 62. lower drive gear; 621. Lower transmission gear; 63, fan blade; 7, adjustment assembly; 71, damping arm; 711, first universal head; 712, second universal head; 72, adjustment hammer; 721, wire rope; 8, damping cylinder; 81, first piston head; 811, first damping rod; 812, first chamber; 82, second piston head; 821, second damping rod; 822, second chamber; 83, intermediate chamber; 84, first input pipe; 841, first input valve; 85, first output pipe; 851, first output valve; 86, second input pipe; 861, second input valve; 87, second output pipe; 871, second output valve; 9, screw; 91, nut; 92, first flange; 921, first through hole; 93, second flange; 931, second through hole. DETAILED DESCRIPTION
[0037] The following is combined with Figure 1-10 This application is described in further detail.
[0038] The embodiment of the present application discloses a windproof insulator for a transmission line. Figures 1 to 3The invention comprises a core rod 1, the outer wall of which is wrapped with an insulating sheath 11. The outer wall of the sheath 11 is provided with a plurality of sheds 12. An elastic sheath 2 is mounted on the sheath 11, and a cylinder 3 is inserted into the elastic sheath 2. One end of the cylinder 3 is connected to the core rod 1, and the other end of the cylinder 3 is mounted with a hardware 4. A first ring seat 21 is mounted on the cylinder 3 and fixedly connected to the cylinder 3. A second ring seat 22 is mounted on the sheath 11 and fixedly connected to the sheath 11. The elastic sheath 2 is positioned between the first ring seat 21 and the second ring seat 22, with one end of the elastic sheath 2 abutting the first ring seat 21 and the other end abutting the second ring seat 22. An adjustment assembly 7 is mounted within the cylinder 3 and is used to suppress vibration of the core rod 1. A locking ring 51 is mounted on the elastic sheath 2, with one end of the locking ring 51 fixedly connected to the first ring seat 21 and the other end of the locking ring 51 fixedly connected to the second ring seat 22. The locking ring 51 defines a locking groove 513 on one side of the elastic sleeve 2. A locking shaft 52 is rotatably mounted within the locking groove 513. Several abutment arms 53 are mounted on the sidewalls of the locking shaft 52. Abutment wheels 5 are rotatably mounted on the abutment arms 53, which are used to abut the elastic sleeve 2. A wind force assembly 6 is mounted on the locking ring 51, which drives the locking shaft 52 for rotation. When wind forces act on the composite insulator, the adjustment assembly 7 suppresses vibration of the core rod 1 while the wind force assembly 6 utilizes the wind force to rotate the locking shaft 52. The locking shaft 52 drives the abutment arms 53 to rotate, causing the abutment wheels 5 on the abutment arms 53 to abut the elastic sleeve 2. Stronger winds and faster wind speeds increase the frequency of contact between the abutment wheels 5 and the elastic sleeve 2, and the abutment wheels 5 exert a greater pressure on the elastic sleeve 2. The elastic sleeve 2 is deformed under the squeezing action of the abutting wheel 5 , and the deformed elastic sleeve 2 fits more tightly on the sheath 11 and the barrel 3 , thereby improving the connection strength between the barrel 3 and the core rod 1 .
[0039] In order to utilize wind power to drive the locking shaft 52 to rotate, refer to Figures 2 to 4The wind power assembly 6 includes an upper drive gear 61, a lower drive gear 62 and a plurality of blades 63. An upper ring groove 511 and a lower ring groove 512 are provided on the outer ring wall of the locking ring 51. The upper drive gear 61 is rotatably disposed in the upper ring groove 511, and the lower drive gear 62 is rotatably disposed in the lower ring groove 512. The top of the blade 63 is fixedly connected to the upper drive gear 61, and the bottom of the blade 63 is fixedly connected to the lower drive gear 62. The blade 63 uses wind force to drive the upper drive gear 61 and the lower drive gear 62 to rotate. An upper transmission gear 611 is installed on the top of the locking shaft 52. The upper transmission gear 611 is rotatably disposed in the upper ring groove 511, and the upper transmission gears 611 are all meshed with the upper drive gear 61. A lower transmission gear 621 is installed on the bottom of the locking shaft 52. The lower transmission gear 621 is rotatably disposed in the lower ring groove 512, and the lower transmission gear 621 is all meshed with the lower drive gear 62. The upper driving gear 61 rotates to drive the upper transmission gear 611 to rotate, the lower driving gear 62 drives the lower transmission gear 621 to rotate, and the upper transmission gear 611 and the lower transmission gear 621 drive the locking shaft 52 to rotate.
[0040] In order to reduce the deformation of the elastic sleeve 2 caused by long-term extrusion, refer to Figures 2 to 5 Several hinge shafts 541 are rotatably disposed within the locking groove 513. A reset arm 54 is mounted on the hinge shaft 541. The reset arm 54 is used to abut against the abutting wheel 5. Several reset torsion springs 542 are sleeved on the hinge shaft 541. One end of the reset torsion spring 542 is fixedly connected to the hinge shaft 541, and the other end of the reset torsion spring 542 is fixedly connected to the inner wall of the locking groove 513. When the wind drives the abutting wheel 5 to rotate, the abutting wheel 5 squeezes the reset arm 54 when passing by, causing the reset torsion spring 542 to be compressed. When the wind is weak, the reset torsion spring 542 rebounds, causing the reset arm 54 to push the abutting wheel 5, separating the abutting wheel 5 from the elastic sleeve 2, thereby reducing the deformation of the elastic sleeve 2 caused by the abutting wheel 5 squeezing the elastic sleeve 2 for a long time.
[0041] In order to suppress the vibration of the core rod 1, refer to Figures 2 to 7The adjustment assembly 7 includes an adjustment hammer 72 and a plurality of damping arms 71. The top of the adjustment hammer 72 is bolted to a steel wire rope 721, which is bolted to the top wall of the cylinder 3, suspending the adjustment hammer 72 in the cylinder 3. The damping arm 71 includes a damping cylinder 8, a first damping rod 811, a first piston head 81, a second damping rod 821, and a second piston head 82. The first piston head 81 and the second piston head 82 are both slidably arranged in the damping cylinder 8. The side of the first piston head 81 away from the second piston head 82 is integrally formed with one end of the first damping rod 811. The other end of the first damping rod 811 passes through the end wall of the damping cylinder 8. The first damping rod 811 is located between the outer end of the damping cylinder 8 and the side wall of the adjustment hammer 72, and the first universal head 711 is installed. The second piston head 82 is integrally formed with one end of the second damping rod 821 on the side away from the first piston head 81. The other end of the second damping rod 821 extends through the end wall of the damping cylinder 8. A second universal joint 712 is mounted between the outer end of the damping cylinder 8 and the top wall of the cylinder body 3. The side of the first piston head 81 away from the second piston head 82 defines a first chamber 812, while the side of the second piston head 82 away from the first piston head 81 defines a second chamber 822. An intermediate chamber 83 is formed between the first and second piston heads 81, 82. A first input pipe 84 and a first output pipe 85 are connected between the first and second piston heads 81, 83. A first input valve 841 is mounted on the first input pipe 84, while a first output valve 851 is mounted on the first output pipe 85. Both the first input valve 841 and the first output valve 851 are one-way valves. When the first cavity 812 contracts, the gas-liquid medium in the first cavity 812 enters the intermediate cavity 83 through the first inlet pipe 84. When the first cavity 812 expands, the gas-liquid medium in the intermediate cavity 83 enters the first cavity 812 through the first outlet pipe 85. A second inlet pipe 86 and a second outlet pipe 87 are connected between the second cavity 822 and the intermediate cavity 83. A second inlet valve 861 is installed on the second inlet pipe 86, and a second outlet valve 871 is installed on the second outlet pipe 87. Both the second inlet valve 861 and the second outlet valve 871 are one-way valves. When the second cavity 822 contracts, the gas-liquid medium in the second cavity 822 enters the intermediate cavity 83 through the second inlet pipe. When the second cavity 822 expands, the gas-liquid medium in the intermediate cavity 83 enters the second cavity 822 through the second outlet pipe 87. When wind forces act on the composite insulator, the regulating hammer 72 swings in the opposite direction, using the opposing torque generated by the regulating hammer 72 to offset some of the wind force. When the regulating hammer 72 swings, the damping arm 71 expands and contracts to achieve buffering and suppress vibration of the composite insulator.
[0042] In order to achieve the effect of connecting the metal fittings 4 and the cylinder 3, refer to Figures 1 to 8A first flange 92 is sleeved on the hardware 4, and the first flange 92 is fixedly connected to the hardware 4. A plurality of first through holes 921 are provided on the first flange 92. A second flange 93 is fixedly installed on the cylinder 3, and a plurality of second through holes 931 are provided on the second flange 93. Screws 9 are inserted into the first through holes 921 and the second through holes 931 relative to each other, and a set of nuts 91 are threadedly connected to the screws 9. The nuts 91 are used to clamp the first flange 92 and the second flange 93. When the hardware 4 is connected to the cylinder 3, the screws 9 are passed through the first through holes 921 and the second through holes 931 that are arranged opposite to each other, and finally the nuts 91 are used to clamp the first flange 92 and the second flange 93 to achieve the effect of connecting the hardware 4 to the cylinder 3.
[0043] refer to Figures 1 to 10The hardware 4 is integrally formed with a socket 41 on the side facing the barrel 3, and a conical plug 42 is integrally formed on the side of the socket 41 away from the hardware 4. The diameter of the conical plug 42 at the end facing the socket 41 is equal to the diameter of the end of the socket 41 away from the conical plug 42, and the diameter of the conical plug 42 at the end facing the socket 41 is larger than the diameter of the end of the conical plug 42 away from the socket 41. A guide ring groove 43 is provided on the side wall of the socket 41, and a plurality of snap-in grooves 44 are provided on the inner wall of the guide ring groove 43. A holder 31 is integrally formed on the side facing the hardware 4 of the barrel 3, and a second flange 93 is sleeved on the holder 31, and the second flange 93 is fixedly connected to the holder 31. An insertion groove 32 is provided on the side of the holder 31 away from the barrel 3, and the insertion groove 32 is for inserting the socket 41 and the conical plug 42. The inner wall of the insertion groove 32 is used to fit with the outer wall of the socket 41 and the outer wall of the conical plug 42. The inner wall of the insertion slot 32 defines several telescopic slots 33. A telescopic spring 34 is positioned within each of these slots. One end of the telescopic spring 34 is fixedly connected to the slot 33, while the other end of the telescopic spring 34 is mounted on a telescopic arm 35. The telescopic arm 35 is slidably connected to the slot 33. A spherical surface 361 is defined on the end of the telescopic arm 35 facing away from the telescopic spring 34. Several guide balls 36 are rotatably mounted on this spherical surface. The guide balls 36 are designed to abut against the sidewalls of the tapered plug 42, the inner wall of the guide ring groove 43, and the inner wall of the engaging groove 44. The guide ring groove 43 and the engaging groove 44 provide for the insertion of the telescopic arm 35 and guide balls 36. When connecting the hardware 4 to the barrel 3, the socket 41 and the tapered plug 42 are first inserted into the insertion slot 32 on the holder 31. As the socket 41 and the tapered plug 42 are inserted into the insertion slot 32, the tapered plug 42 compresses the telescopic arm 35, gradually retracting it into the telescopic slot 33, thereby facilitating the insertion of the socket 41 into the insertion slot 32. When the guide ring groove 43 and the telescopic groove 33 are aligned, the telescopic arm 35 is inserted into the guide ring groove 43 under the action of the telescopic spring 34, thereby causing the holder 31 and the socket 41 to rotate relative to each other. When the telescopic groove 33 and the engaging groove 44 are aligned, the telescopic arm 35 is inserted into the engaging groove 44 under the action of the telescopic spring 34, pre-aligning the holder 31 and the socket 41, facilitating the subsequent connection between the first flange 92 and the second flange 93. At the same time, the telescopic spring 34 cushions vibrations between the hardware 4 and the cylinder 3.
[0044] The windproof insulator for power transmission lines according to the present embodiment of the present application operates as follows: When wind forces act on the composite insulator, the blades 63 utilize the wind force to rotate the locking shaft 52, which in turn rotates the abutment arm 53, causing the abutment wheel 5 on the abutment arm 53 to abut against the elastic sleeve 2. As the wind force increases, the wind speed increases, resulting in a higher frequency of contact between the abutment wheel 5 and the elastic sleeve 2, and a stronger squeezing effect of the abutment wheel 5 on the elastic sleeve 2. Under the squeezing action of the abutment wheel 5, the elastic sleeve 2 deforms, and the deformed elastic sleeve 2 fits more tightly against the sheath 11 and the barrel 3, thereby increasing the connection strength between the barrel 3 and the core rod 1. Simultaneously, the adjusting hammer 72 suspended within the barrel 3 swings in the opposite direction, using the opposing torque generated by the adjusting hammer 72 to offset some of the wind force. Furthermore, as the adjusting hammer 72 swings, the damping arm 71 expands and contracts to provide a buffer, suppressing vibrations of the composite insulator. Therefore, the synergistic effect of the adjusting hammer 72, the damping arm 71 and the abutting wheel 5 is utilized to reduce the influence of wind force on the service life of the composite insulator.
[0045] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.
Claims
1. A windproof insulator for a power transmission line, comprising a core rod, a sheath provided on the outer wall of the core rod, and a plurality of sheds provided on the outer wall of the sheath, characterized in that: A group of elastic sleeves are sleeved on the sleeve, and a cylinder is inserted in the elastic sleeve, and the cylinder is connected to the core rod. An adjusting component is arranged in the cylinder, and the adjusting component is used to suppress the vibration of the core rod. A hardware is arranged on the end of the cylinder away from the core rod, and a locking ring is sleeved on the elastic sleeve, and the cylinder and the sleeve are fixedly connected to the locking ring. The locking ring is provided with a locking groove facing one side of the elastic sleeve, and a locking shaft is rotatably arranged in the locking groove. A plurality of abutment arms are fixedly provided on the side walls of the locking shaft, and an abutment wheel is rotatably provided on the abutment arm, and the abutment wheel is used to abut with the elastic sleeve. A wind component is provided on the locking ring, and the wind component is used to drive the locking shaft to rotate; The wind power assembly includes an upper driving gear, a lower driving gear and a plurality of fan blades. An upper ring groove and a lower ring groove are provided on the outer ring wall of the locking ring. The upper driving gear is rotatably set in the upper ring groove, and the lower driving gear is rotatably set in the lower ring groove. The top end of the fan blade is fixedly connected to the upper driving gear, and the bottom end of the fan blade is fixedly connected to the lower driving gear. The upper transmission gear is fixedly provided on the top end of the locking shaft, and the upper transmission gear is rotatably set in the upper ring groove. The upper transmission gears are all meshed with the upper driving gear. The lower end of the locking shaft is fixedly provided with a lower transmission gear, and the lower transmission gear is rotatably set in the lower ring groove. The lower transmission gears are all meshed with the lower driving gear. The adjustment assembly includes an adjusting hammer and several damping arms. A first universal head is provided at one end of the damping arm, and the first universal head is rotatably connected to the side wall of the adjusting hammer. A second universal head is provided at the other end of the damping arm, and the second universal head is rotatably connected to the side wall of the cylinder. A steel wire rope is provided at the top of the adjusting hammer, and the steel wire rope is connected to the top wall of the cylinder.
2. The windproof insulator for a transmission line according to claim 1, characterized in that: A first ring seat is fixedly provided at one end of the locking ring, and the first ring seat is sleeved on the cylinder, and the first ring seat is fixedly connected to the cylinder; a second ring seat is fixedly provided at the other end of the locking ring, and the second ring seat is sleeved on the sleeve, and the second ring seat is fixedly connected to the sleeve; the elastic sleeve is located between the first ring seat and the second ring seat, and one end of the elastic sleeve abuts against the first ring seat, and the other end of the elastic sleeve abuts against the second ring seat.
3. The windproof insulator for a transmission line according to claim 1, characterized in that: A plurality of hinge shafts are rotatably arranged in the locking groove, a reset arm is fixedly arranged on the hinge shaft, the reset arm is used to abut against the abutment wheel, a plurality of reset torsion springs are sleeved on the hinge shaft, one end of the reset torsion spring is fixedly connected to the hinge shaft, and the other end of the reset torsion spring is fixedly connected to the inner wall of the locking groove.
4. The windproof insulator for a transmission line according to claim 1, characterized in that: The damping arm includes a damping cylinder, a first damping rod, a first piston head, a second damping rod, and a second piston head. The first piston head and the second piston head are both slidably disposed in the damping cylinder. The first piston head is fixedly connected to one end of the first damping rod on a side away from the second piston head. The other end of the first damping rod passes through the end wall of the damping cylinder. The end of the first damping rod located outside the damping cylinder is rotatably connected to the first universal head. The second piston head is fixedly connected to one end of the second damping rod on a side away from the first piston head. The other end of the second damping rod passes through the end wall of the damping cylinder. The end of the second damping rod located outside the damping cylinder is rotatably connected to the second universal head. The side of the first piston head away from the second piston head is a first chamber. The side of the second piston head away from the first piston head is a second chamber. An intermediate chamber is formed between the first and second piston heads. A first input pipe and a first output pipe are provided between the first chamber and the intermediate chamber. A first input valve is provided on the first input pipe, and a first output valve is provided on the first output pipe. A second input pipe and a second output pipe are provided between the second chamber and the intermediate chamber. A second input valve is provided on the second input pipe, and a second output valve is provided on the second output pipe.
5. The windproof insulator for a transmission line according to claim 1, characterized in that: A socket is fixedly arranged on the side of the hardware fitting facing the cylinder, and a conical plug is fixedly arranged on the side of the socket away from the hardware fitting, the diameter of the conical plug facing the socket end is equal to the diameter of the socket facing the conical plug away from the socket end, and the diameter of the conical plug facing the socket end is larger than the diameter of the conical plug away from the socket end, and a holder is fixedly arranged on the side of the cylinder facing the hardware fitting, and an insertion groove is provided on the holder side away from the cylinder, and the insertion groove is for the socket and the conical plug to be inserted, and the inner wall of the insertion groove is used to fit with the outer wall of the socket and the outer wall of the conical plug, a first flange is sleeved on the hardware fitting, and the first flange is fixedly connected to the hardware fitting, a plurality of first through holes are provided on the first flange, a second flange is sleeved on the holder, and the second flange is fixedly connected to the holder, and a plurality of second through holes are provided on the second flange, screws are inserted into the first through holes and the second through holes, and a group of nuts are threaded on the screws, and the nuts are used to clamp the first flange and the second flange.
6. The windproof insulator for a transmission line according to claim 5, characterized in that: A guide ring groove is provided on the side wall of the socket, a plurality of clamping grooves are provided on the inner wall of the guide ring groove, a plurality of telescopic grooves are provided on the inner wall of the insertion groove, a telescopic spring is provided in the telescopic groove, one end of the telescopic spring is fixedly connected to the telescopic groove, a telescopic arm is fixedly provided on the other end of the telescopic spring, a spherical surface is provided on the end of the telescopic arm away from the telescopic spring, a plurality of guide balls are rotatably provided on the spherical surface, the guide balls are used to abut against the side wall of the tapered plug, the inner wall of the guide ring groove and the inner wall of the clamping groove, and the guide ring groove and the clamping groove are for inserting the telescopic arm and the guide ball.
Citation Information
Patent Citations
Damping windproof restraining device for power transmission line
CN115579822A
Windage yaw prevention composite insulator
CN117976334A