CN209948628U - Novel damping type anti-galloping device - Google Patents
Novel damping type anti-galloping device Download PDFInfo
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- CN209948628U CN209948628U CN201920952242.9U CN201920952242U CN209948628U CN 209948628 U CN209948628 U CN 209948628U CN 201920952242 U CN201920952242 U CN 201920952242U CN 209948628 U CN209948628 U CN 209948628U
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- wire rope
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Abstract
The utility model provides a novel damping type anti-galloping device, which comprises a steel wire rope stay cable, a hanger spring shock absorber and a gravity type concrete foundation, wherein one end of the hanger spring shock absorber is installed on the gravity type concrete foundation, and the other end of the hanger spring shock absorber is installed at the lowest sag point of the sag of a wire or on a frame of a spacing rod fixed on the wire through the steel wire rope stay cable; the utility model discloses can effectually prevent that the wire from waving, especially restrain the wire and wave from top to bottom, the utility model discloses simple structure can be suitable for the wire of various different split numbers.
Description
Technical Field
The utility model relates to a power transmission line protection device, concretely relates to novel damping type prevents waving device.
Background
The galloping of the overhead transmission line is low-frequency large-amplitude self-excited vibration, and vertical motion accounts for the main motion in the galloping. The galloping may cause short circuit between lines and short circuit of grounding, the caused loss comprises arc burning, strand breakage, line breakage, tower damage, tower falling, vibration damper and spacer damage and the like, the damage is more serious especially for ice-coated wires, and serious economic loss and power grid safety accidents are caused if the galloping cannot be effectively inhibited.
The transmission line adopts the split conductors with different split numbers along with the promotion of the voltage grade, and the split conductors are easier to wave, so that corresponding effective anti-galloping devices are needed to be researched urgently for extra-high voltage and extra-high voltage lines. The existing interphase spacers, the anti-galloping device and the like can reduce the galloping degree to a certain extent, but are difficult to meet the requirements, and the existing related insulation stay wire anti-galloping device has rigid breaking force, and can also cause accidents such as wire breakage, tower collapse and the like under certain conditions.
Disclosure of Invention
An object of the utility model is to provide a novel damping type prevents waving device has solved the not enough that exists among the prior art.
In order to achieve the above purpose, the utility model discloses a technical scheme is:
the utility model provides a pair of novel damping type prevents waving device, including wire rope stay cord, gallows spring damper and gravity type concrete foundation, wherein, gallows spring damper's one end is installed on gravity type concrete foundation, and the other end passes through wire rope stay cord and installs on the minimum sag point department of the sag of wire or fix the frame of conductor spacer on the wire.
Preferably, the hanger spring shock absorber comprises a shell, a pull rod, a spring, a pressing plate and a rotating nut, wherein the shell is of a U-shaped structure, one end of the pull rod penetrates through the top of the shell and is arranged on the outer side of the shell to be connected with a steel wire rope pull cable, the other end of the pull rod is arranged in an inner cavity of the shell, and meanwhile, the spring, the pressing plate and the rotating nut are sequentially sleeved on the section;
the both sides of the open end of casing all are provided with the side ear, realize being connected with gravity type concrete foundation through the side ear.
Preferably, a pull ring is arranged between the pull rod and the steel wire rope.
Preferably, a composite insulator is arranged between the steel wire rope pulling cable and the wire.
Preferably, the upper end of the composite insulator is connected to the conductor or the frame of the spacer fixed to the conductor by a first fitting.
Preferably, the first hardware fitting comprises a first U-shaped hanging ring, a first connecting plate, a right-angle hanging plate and a ball head hanging plate, wherein the first U-shaped hanging ring is hung at the lowest sag point of the wire or on a frame of the spacer, the open end of the first U-shaped hanging ring is sequentially connected with the first connecting plate, the right-angle hanging plate and the ball head hanging plate, and the open end of the ball head hanging plate is connected with the composite insulator.
Preferably, the steel wire rope pull cable is connected with the composite insulator through a second hardware fitting.
Preferably, the second hardware fitting comprises a second U-shaped hanging ring, a second yoke plate and a socket hanging plate, wherein the other end of the composite insulator is sequentially connected with the socket hanging plate, the second yoke plate and the second U-shaped hanging ring, and the free end of the second U-shaped hanging ring is connected with the steel wire rope pull cable.
Preferably, one end of the composite insulator is of a steel cap structure, and the other end of the composite insulator is of a ball head structure; and a ball head clamping groove is formed in the end of the steel cap structure.
Preferably, the composite insulators are provided with a plurality of composite insulators, the composite insulators are connected in series, and the ball head structure of the composite insulator arranged at the upper end is clamped in the ball head clamping groove of the composite insulator arranged at the lower end and is fixedly locked through the pin.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a novel damping type anti-galloping device, which provides a certain gravity through a gravity type concrete foundation, balances the uplifting force when the lead gallows, offsets the instantaneous impact force when the lead gallows, namely the instantaneous uplifting force when the lead gallows through a hanger spring damper, and prevents the wire breakage accident and the like under the hard connection action of a rigid stay cable; the utility model discloses can effectually prevent that the wire from waving, especially restrain the wire and wave from top to bottom, the utility model discloses simple structure can be suitable for the wire of various different split numbers.
Furthermore, the insulation safety of the anti-galloping device is ensured through the composite insulator.
Furthermore, the upper end of the composite insulator is connected to the lowest overhanging part of the wire or the frame of the spacer fixed on the wire through the first hardware fitting, the upper end of the steel wire rope pull cable is connected to the lower end of the composite insulator through the second hardware fitting, the first hardware fitting and the second hardware fitting are used as a combined hardware fitting to connect the composite insulator in the anti-galloping device, the insulation is safe and reliable, all components are electric general hardware fittings, the non-special hardware fitting is low in cost and convenient to operate.
Drawings
FIG. 1 is a schematic structural view of an anti-galloping device according to the present invention;
FIG. 2 is a schematic view of a hanger spring damper construction;
FIG. 3 is a schematic view of the connection of a wire, a composite insulator, and a wire rope;
FIG. 4 is a schematic view of the connection of the spacer, the composite insulator and the wire rope;
in the figure, the device comprises a conductor 1, a conductor 2, a composite insulator 3, a steel wire rope stay cable 4, a hanger spring damper 5, a concrete foundation 6, a spacer 70, a first U-shaped hanging ring 71, a second U-shaped hanging ring 80, a first connecting plate 81, a second connecting plate 9, a right-angle hanging plate 10, a ball head hanging plate 11, a socket hanging plate 12, a pull ring 13, a shell 14, a pull rod 15, a spring 16, a pressing plate 17 and a nut.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the utility model provides a novel damping type anti-galloping device, including composite insulator 2, wire rope cable 3, gallows spring damper 4 and gravity type concrete foundation 5, wherein, the upper end of gravity type concrete foundation 5 is about 50 centimeters higher than the ground, and foundation bolt is poured on the upper end face, and the lower part of gravity type concrete foundation 5 is placed in the pit; the gravity type concrete foundation 5 mainly has the functions of providing certain gravity and balancing the uplifting force when the lead waves, and the gravity type concrete foundation 5 is required to meet the three-time safety factor, namely the gravity is equal to the three-time uplifting force when the lead waves.
One end of a hanger spring shock absorber 4 is installed on a gravity type concrete foundation 5, the other end of the hanger spring shock absorber is connected with one end of a composite insulator 2 through a steel wire rope pull cable 3, and the other end of the composite insulator 2 is installed at the lowest sag point of the sag of the lead 1.
As shown in fig. 2, the hanger spring damper 4 includes a housing 13, a pull rod 14, a spring 15, a pressure plate 16 and a rotating nut 17, wherein the housing 13 is a U-shaped structure, side lugs are disposed on two sides of an open end of the U-shaped structure, and each side lug is provided with a threaded hole, and the threaded hole is connected with the gravity concrete foundation 5 by a bolt.
One end of a pull rod 14 penetrates through the top of the shell 13 and is arranged on the outer side of the shell 13 to be connected with the steel wire rope pull cable 3, the other end of the pull rod 14 is arranged in the inner cavity of the shell 13, and a pressure plate 16 and a rotating nut 17 are arranged at the other end; the spring 15 is arranged between the shell 13 and the pressure plate 16, and meanwhile, the spring 15 is sleeved on the pull rod 14; the spring force is adjusted by adjusting the elongation of the spring 15 by rotating the nut 17.
A pull ring 12 is arranged between the pull rod 14 and the steel cable 3.
A flange is arranged at the lower end of the shell 13, an anchor bolt through hole is formed in the flange, and the shell 13 is fixed at the upper end of the gravity type concrete foundation 5 through an anchor bolt at the upper end of the gravity type concrete foundation 5; therefore, the pull ring 12 is pulled upwards, the spring 15 is further compressed, the pulling force required in the pulling process is increased, the pulling force on the pull ring 12 is released, and the spring 15 rebounds and resets.
The upper end of composite insulator 2 is connected on wire 1 or on the frame of conductor spacer 6 through first gold utensil, as shown in fig. 3 and fig. 4, the hookup location of first gold utensil on wire 1 is at the minimum sag point department of wire sag, wire rope draws the lower extreme at composite insulator 2 through the second gold utensil in the upper end of cable 3, wire rope draws the lower extreme fixed connection of cable 3 on the pull ring 12 on the elasticity gallows of gallows spring damper 4, wire rope draws cable 3 and is vertical and perpendicular with ground under the effect of gallows spring damper 4 spring force.
The hanger spring shock absorber 4 mainly has the functions of offsetting the instantaneous impact force when the lead 1 swings, namely the instantaneous upward pulling force of the swinging lead, and preventing the wire breakage accident and the like under the hard connection action of the rigid pull cable; the hanger spring damper 4 needs to have a tensile strength greater than the maximum pull-up force, while satisfying a factor of safety three times.
As shown in fig. 3 and 4, the first hardware comprises a first U-shaped hanging ring 70, a first link plate 80, a right-angle hanging plate 9 and a ball-end hanging plate 10, wherein the first U-shaped hanging ring 70 is hung at the lowest sag point of the wire 1 or on the frame of the spacer 6, the open end of the first U-shaped hanging ring 70 is sequentially connected with the first link plate 80, the right-angle hanging plate 9 and the ball-end hanging plate 10, and the open end of the ball-end hanging plate 10 is connected with the composite insulator 2.
The second fitting comprises a second U-shaped hanging ring 71, a second link plate 81 and a bowl head hanging plate 11, wherein the other end of the composite insulator 2 is sequentially connected with the bowl head hanging plate 11, the second link plate 81 and the second U-shaped hanging ring 71, and the free end of the second U-shaped hanging ring 71 is connected with the steel wire rope pull cable 3.
In the embodiment, the composite insulator 2 is a composite insulator string formed by combining a plurality of composite insulators, the upper end of a single composite insulator 2 is a steel cap, the lower end of the single composite insulator is a ball head, a ball head clamping groove matched with the ball head is formed in the steel cap, the ball head at the lower end of the single composite insulator 2 is clamped into the ball head clamping groove in the steel cap of the composite insulator 2 adjacent to the lower end of the single composite insulator and is fixedly locked by a pin, so that the two composite insulators 2 can be connected in series, and the composite insulators 2 are sequentially connected in series to form the composite insulator string, so that; the insulation strength of the composite insulator string is higher than the nominal voltage of the line by one grade.
A ball head end ball head of the ball head hanging plate 10 is clamped into a ball head clamping groove at the upper end of the composite insulator 2 or the composite insulator string and is fixedly locked through a pin, so that the ball head hanging plate 10 is fixed with the upper end of the composite insulator 2; the other end of the ball head hanging plate 10 is connected with one end of a right-angle hanging plate 9 through a bolt, the other end of the right-angle hanging plate 9 is connected with one end of a connecting plate 8 through a bolt, a U-shaped hanging ring 7 is clamped on the lead 1 or a frame of the spacer 6, and the other end of the connecting plate 8 is connected with the open end of the U-shaped hanging ring 7 through a bolt.
The steel wire rope pull cable 3 is mainly connected with the composite insulator 2 and the hanger spring shock absorber 4, the tensile strength of the steel wire rope pull cable is greater than the maximum pull-up force of the wire 1, and the safety factor is three times. The upper end of a steel wire rope pull cable 3 is connected in a ring groove of a U-shaped hanging ring 7 below the composite insulator 2, the lower end of the steel wire rope pull cable 3 is connected on a pull ring 12, the length of the steel wire rope pull cable 3 is adjusted, the steel wire rope pull cable 3 is straightened and perpendicular to the ground, the steel wire rope pull cable 3 is elastically pulled and held below the wire 1 or the spacing rod 6 under the action of spring force of a spring 15, and when the wire 1 swings up and down, the wire 1 swings with a damping effect, and the swinging of the wire 1 is buffered. In the embodiment, the strength of the related hardware fitting is required to be less than three times of the pull-up force of the safety factor, and the related hardware fitting can meet 90% of pull-up force and can be broken under the limit condition so as to prevent the spacer 6, the lead 1, the tower and the like from being pulled apart or falling down by external force.
Claims (10)
1. The utility model provides a novel damping type prevents waving device, its characterized in that, draws cable (3), gallows spring damper (4) and gravity type concrete foundation (5) including wire rope, wherein, the one end of gallows spring damper (4) is installed on gravity type concrete foundation (5), and the other end draws cable (3) through wire rope to install on the minimum sag point department of the sag of wire (1) or fix on the frame of conductor spacer (6) on wire (1).
2. The novel damping type anti-galloping device according to claim 1, wherein the hanger spring shock absorber (4) comprises a shell (13), a pull rod (14), a spring (15), a pressing plate (16) and a rotating nut (17), wherein the shell (13) is of a U-shaped structure, one end of the pull rod (14) penetrates through the top of the shell (13) and is arranged on the outer side of the shell (13) to be connected with the steel wire rope pulling cable (3), the other end of the pull rod (14) is arranged in an inner cavity of the shell (13), and meanwhile, the spring (15), the pressing plate (16) and the rotating nut (17) are sequentially sleeved on the section;
and side lugs are arranged on two sides of the opening end of the shell (13) and are connected with the gravity type concrete foundation (5).
3. A new damping type anti-galloping device according to claim 2, characterized in that a pull ring (12) is arranged between the pull rod (14) and the steel cable pull (3).
4. A novel damping type anti-galloping device according to claim 1, characterized in that a composite insulator (2) is arranged between the steel wire rope (3) and the wire (1).
5. A novel damping type anti-galloping device according to claim 1, characterized in that the upper end of the composite insulator (2) is connected to the conductor (1) or to the frame of the spacer (6) fixed to the conductor (1) by first hardware.
6. The novel damping type anti-galloping device according to claim 5, wherein the first hardware comprises a first U-shaped hanging ring (70), a first connecting plate (80), a right-angle hanging plate (9) and a ball head hanging plate (10), wherein the first U-shaped hanging ring (70) is hung at the lowest sag point of the lead (1) or on a frame of the spacer (6), the open end of the first U-shaped hanging ring (70) is sequentially connected with the first connecting plate (80), the right-angle hanging plate (9) and the ball head hanging plate (10), and the open end of the ball head hanging plate (10) is connected with the composite insulator (2).
7. The novel damping type anti-galloping device according to claim 4, wherein the steel wire rope pull cable (3) is connected with the composite insulator (2) through a second hardware fitting.
8. The novel damping type anti-galloping device according to claim 7, wherein the second hardware comprises a second U-shaped hanging ring (71), a second connecting plate (81) and a socket hanging plate (11), wherein the other end of the composite insulator (2) is sequentially connected with the socket hanging plate (11), the second connecting plate (81) and the second U-shaped hanging ring (71), and the free end of the second U-shaped hanging ring (71) is connected with the steel wire rope stay cable (3).
9. The novel damping type anti-galloping device is characterized in that one end of the composite insulator (2) is of a steel cap structure, and the other end of the composite insulator is of a ball head structure; and a ball head clamping groove is formed in the end of the steel cap structure.
10. The novel damping type anti-galloping device as claimed in claim 9, wherein the composite insulators (2) are provided with a plurality of composite insulators (2), the composite insulators (2) are connected in series, and the ball head structure of the composite insulator (2) arranged at the upper end is clamped in the ball head clamping groove of the composite insulator (2) arranged at the lower end and is fixedly locked through a pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920952242.9U CN209948628U (en) | 2019-06-21 | 2019-06-21 | Novel damping type anti-galloping device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920952242.9U CN209948628U (en) | 2019-06-21 | 2019-06-21 | Novel damping type anti-galloping device |
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| Publication Number | Publication Date |
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| CN209948628U true CN209948628U (en) | 2020-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920952242.9U Active CN209948628U (en) | 2019-06-21 | 2019-06-21 | Novel damping type anti-galloping device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110137889A (en) * | 2019-06-21 | 2019-08-16 | 陕西臻源电力科技服务有限公司 | A kind of anti-dancing device of New Damping type |
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2019
- 2019-06-21 CN CN201920952242.9U patent/CN209948628U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110137889A (en) * | 2019-06-21 | 2019-08-16 | 陕西臻源电力科技服务有限公司 | A kind of anti-dancing device of New Damping type |
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Inventor after: Zeng Linping Inventor after: Zhu Yongkun Inventor after: Zhou Ruiwen Inventor after: Shen Hui Inventor after: Meng Xiang Inventor after: Yang Fan Inventor before: Zeng Linping Inventor before: Zhu Yongkun Inventor before: Zhou Ruiwen Inventor before: Shen Hui Inventor before: Meng Xiang Inventor before: Yang Fan |