CN104753013A - Line anti-vibration hammer capable of adjusting resonant frequencies - Google Patents
Line anti-vibration hammer capable of adjusting resonant frequencies Download PDFInfo
- Publication number
- CN104753013A CN104753013A CN201510202518.8A CN201510202518A CN104753013A CN 104753013 A CN104753013 A CN 104753013A CN 201510202518 A CN201510202518 A CN 201510202518A CN 104753013 A CN104753013 A CN 104753013A
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- Prior art keywords
- connecting rod
- wire
- rotating part
- gland
- resonance frequency
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/14—Arrangements or devices for damping mechanical oscillations of lines, e.g. for reducing production of sound
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- Suspension Of Electric Lines Or Cables (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a line anti-vibration hammer capable of adjusting resonant frequencies, relates to a line anti-vibration hammer, and aims at solving the problems that the existing antivibrator only can be matched with several resonant frequencies, and a resonance vibration attenuation effect cannot be exerted on other numerous frequencies. A line sheath of the line anti-vibration hammer disclosed by the invention covers a lead; a clip assembly is arranged on the line sheath; a middle support plate is connected with the lower end of the clip assembly through bolts; a bottom support plate is arranged at the lower end of the middle support plate; a stepping motor is arranged on the bottom support plate through a pressing plate; the output end of the stepping motor is connected with a screw; two ends of the screw are respectively supported by a first rotating part and a second rotating part and are rotatably connected; a worm wheel is arranged on the bottom support plate above the screw; the middle part of a rotating lever is rotatably arranged on the middle support plate; two ends of the rotating lever are respectively and rotatably connected with one end of a first connecting rod and one end of a second connecting rod; the other end of the first connecting rod and the other end of the second connecting rod are respectively and rotatably connected with a resonant device. The line anti-vibration hammer disclosed by the invention is used for resonant frequency adjustment of an overhead line.
Description
Technical field
The present invention relates to a kind of stockbridge damper of overhead transmission line, be specifically related to a kind of quake protection hammer of adjustable resonance frequency.
Background technology
The aeolian vibration of power transmission line and the wind of power transmission tower shake and power transmission line often can be caused to break the great faults of harmfulness such as stock broken string, shaft tower node continuous damage, repeatedly impact serious large area blackout.The vibration of charming appearance and behaviour overhead transmission line conductor has three kinds of forms: aeolian vibration, subspan oscillation and wave, wherein the aeolian vibration of wire occurs the most frequent, affects also maximum.The aeolian vibration of wire be due to wind vertically blow over wire time, in periodicity " toll bar vortex " incentive action that wire produces, wire produces the active force of vertical wires and wind direction behind, makes wire produce aeolian vibration.If it is improper that circuit aeolian vibration controls, will make transmission line that the faults such as such as wire fatigue disconnected stock, gold utensil wearing and tearing, shaft tower component damage very easily occur, larger harm will be brought to line security.Domestic and foreign experience shows; easily serious aeolian vibration is there is in overhead transmission line under coastal, desert, cross a river, the orographic condition such as over strait; do not have the wire of vibrationproof safeguard measure in two weeks, just may cause tired disconnected stock; not only increase the power loss of transmission line; cause power wastage; even cause wire fracture and cause the loss of power accident, the service life of serious threat overhead wire, so the safety of transmission line.
The antivibrator of wire, as one of main tool preventing conductor vibration, when the self-resonant frequency of antivibrator and the vibration frequency of transmission line match time, can reduce the resonance frequency of overhead transmission line well.But current antivibrator only can mate several resonance frequency, the effect of resonance vibration damping cannot be played for other most frequencies.
Summary of the invention
The object of the invention is only can mate several resonance frequency to solve current antivibrator, the problem of the effect of resonance vibration damping cannot be played for other most frequencies.And then provide a kind of quake protection of adjustable resonance frequency to hammer into shape.
Technical scheme of the present invention is: a kind of quake protection hammer of adjustable resonance frequency comprises wire clamp assembly and wire bushing, wire bushing is sleeved on wire, wire clamp assembly is arranged on wire bushing, described quake protection hammer also comprises middle supporting plate, two resonance devices, first connecting rod, bottom plate, first rotating part, screw rod, second rotating part, pressing plate, stepping motor, worm gear, second connecting rod and swingle, middle supporting plate is connected by the lower end of screw with wire clamp assembly, bottom plate is arranged on the lower end of middle supporting plate, stepping motor is arranged on bottom plate by pressing plate, the output of stepping motor is connected with screw rod, the two ends of screw rod support respectively by the first rotating part and the second rotating part and are rotatably connected, worm gear to be arranged on the bottom plate above screw rod and to engage with screw rod, the middle part of swingle is rotatably arranged on middle supporting plate, the two ends of swingle are rotatably connected with one end of first connecting rod and one end of second connecting rod respectively, the other end of first connecting rod and the other end of second connecting rod are rotatably connected with a resonance device respectively.
The present invention compared with prior art has following effect:
1. screw rod of the present invention, swingle, first connecting rod, second connecting rod, gland and steel strand wire constitute a mechanical transmission mechanism.Be the stretching motion of steel strand wire by the rotational translation of stepping motor.The extension elongation regulating steel strand wire is carried out by the rotation of control step motor.The resonance frequency of elastic vibration formed due to weight and steel strand wire and the distance dependent of the recessed wheels of the recessed wheels in the top of stretching out ragged edge and bottom of steel strand wire, therefore just can control the resonance frequency of this antivibrator by control step motor.Simultaneously due to the self-locking effect of worm-and-wheel gear, the worm-and-wheel gear consisted of swingle and swingle can the extended length of auto lock steel strand wire.Retaining mechanism need not be increased again, the installation weight of saving.The resonance mechanism that this device is made up of weight and steel strand wire.By second connecting rod and first connecting rod being connected respectively to the two ends of swingle, the resonance frequency of two weights can being controlled when controlling swingle and rotating simultaneously, achieve the continuously adjustabe of antivibrator resonance frequency, to adapt to the change of line vibration frequency.
2. the present invention can regulate the resonance frequency of antivibrator easily continuously, reaches the matched well with line vibration.Change the shortcoming that traditional antivibrator can only realize limited resonance frequency, by the resonance frequency of continuously adjustable adjustment vibrator, be convenient to the function being realized the vibrationproof of antivibrator self adaptation by automatic control device.
3. the present invention adopts worm gear screw-rod structure, while reaching transmission can also automatic blocking to keep the resonance frequency that regulates constant.
4. structure of the present invention is simple, is easy to realize, with low cost.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Embodiment
Embodiment one: composition graphs 1 illustrates present embodiment, the quake protection hammer of a kind of adjustable resonance frequency of present embodiment comprises wire clamp assembly 1 and wire bushing 4, wire bushing 4 is sleeved on wire 5, wire clamp assembly 1 is arranged on wire bushing 4, described quake protection hammer also comprises middle supporting plate 2, two resonance devices 3, first connecting rod 11, bottom plate 12, first rotating part 13, screw rod 14, second rotating part 15, pressing plate 16, stepping motor 17, worm gear 19, second connecting rod 20 and swingle 21, middle supporting plate 2 is connected by the lower end of screw with wire clamp assembly 1, bottom plate 12 is arranged on the lower end of middle supporting plate 2, stepping motor 17 is arranged on bottom plate 12 by pressing plate 16, the output of stepping motor 17 is connected with screw rod 14, the two ends of screw rod 14 support respectively by the first rotating part 13 and the second rotating part 15 and are rotatably connected, worm gear 19 to be arranged on the bottom plate 12 above screw rod 14 and to engage with screw rod 14, the middle part of swingle 21 is rotatably arranged on middle supporting plate 2, the two ends of swingle 21 are rotatably connected with one end of first connecting rod 11 and one end of second connecting rod 20 respectively, the other end of first connecting rod 11 and the other end of second connecting rod 20 are rotatably connected with a resonance device 3 respectively.
Embodiment two: composition graphs 1 illustrates present embodiment, the quake protection hammer of present embodiment also comprises the first gland 10 and the second gland 18, and the other end of first connecting rod 11 and the other end of second connecting rod 20 are rotatably connected respectively by the first gland 10 and the second gland 18 and a resonance device 3.Setting like this, is convenient to the smooth rotation of resonance device 3, and can also be convenient to the connection of the other end of first connecting rod 11 and the other end of second connecting rod 20 and the first gland 10 and the second gland 18.Other composition is identical with embodiment one with annexation.
Embodiment three: composition graphs 1 illustrates present embodiment, the first rotating part 13 of present embodiment and the second rotating part 15 are bearing.Setting like this, is convenient to weight reduction, rotates flexibly.Other composition is identical with embodiment one or two with annexation.
Embodiment four: composition graphs 1 illustrates present embodiment, each resonance device 3 of present embodiment includes weight 7, steel strand wire 8, the recessed wheels 9 of the recessed wheels in top 6 and bottom, the recessed wheels of the recessed wheels in top 6 and bottom 9 are arranged on middle supporting plate 2 from top to bottom successively, steel strand wire 8 are through the recessed wheels 9 of the recessed wheels in top 6 and bottom, one end of steel strand wire 8 is connected with the first gland 10 or the second gland 18, and the other end of steel strand wire 8 is connected with weight 7.Setting like this, structure is simple, operate steadily.Other composition is identical with embodiment one or three with annexation.
Embodiment five: composition graphs 1 illustrates present embodiment, the recessed wheels of the recessed wheels in top 6 and bottom 9 of present embodiment comprise 2-6 respectively recessedly takes turns.Setting like this, is convenient to for steel strand wire 8 provide suitable motion guide.Other composition is identical with embodiment four with annexation.
Operation principle of the present invention is:
Resonance device 3 is oscillating components of this simulator, is made up of weight 7 and steel strand wire 8.The length that the vibration frequency of resonance device 3 is stretched out by quality and the steel strand wire 8 of weight 7 determines.Steel strand wire recessedly take turns clamping by four, ensure that it lateral displacement can not occur in vibration processes.Recessed wheel can be able to allow steel strand wire 8 to extend or shrink around the axle rotation of self.One end of steel strand wire 8 connects first connecting rod 11, and first connecting rod 11 is connected with swingle 21.Swingle 21 can around central rotation.Swingle 21 two ends connect second connecting rod 20 and first connecting rod 11 respectively, and swingle 21 rotates and second connecting rod 20 and first connecting rod 11 can be driven to move, and then drive steel strand wire 8 to stretch.And some worm gear 19 of the lower end of swingle 21 forms worm-and-wheel gear with screw rod 14, swingle 21 can be rotarily driven by screw rod 14 and rotate.Screw rod 14 is connected with stepping motor 17, and is fixed on bottom plate 12 by the first rotating part 13 and the second rotating part 15.Stepping motor 17 is fixed on bottom plate by pressing plate 16.Rotated by stepping motor 17 during work, drive screw rod 14 rotates and then driven rotary bar 21 rotates, and drivening rod 11 rotates because recessed clamping action of taking turns causes steel strand wire 8 to stretch.Because the elongation of steel strand wire 8 changes, then the resonance frequency of resonance device changes.Because the change of worm gear screw rod is smaller, the amount of spin of adjustment swingle 21 that can be meticulousr, reaches continuously and regulates the effect of antivibrator resonance frequency subtly.
Although the present invention discloses as above with preferred embodiment; but and be not used to limit of the present invention; those skilled in the art can also do other changes in spirit of the present invention; and be applied in the NM field of the present invention; certainly, these changes done according to the present invention's spirit all should be included in the present invention's scope required for protection.
Claims (5)
1. the quake protection hammer of an adjustable resonance frequency, it comprises wire clamp assembly (1) and wire bushing (4), wire bushing (4) is sleeved on wire (5), wire clamp assembly (1) is arranged on wire bushing (4), it is characterized in that: described quake protection hammer also comprises middle supporting plate (2), two resonance devices (3), first connecting rod (11), bottom plate (12), first rotating part (13), screw rod (14), second rotating part (15), pressing plate (16), stepping motor (17), worm gear (19), second connecting rod (20) and swingle (21), middle supporting plate (2) is connected by the lower end of screw with wire clamp assembly (1), bottom plate (12) is arranged on the lower end of middle supporting plate (2), stepping motor (17) is arranged on bottom plate (12) by pressing plate (16), the output of stepping motor (17) is connected with screw rod (14), the two ends of screw rod (14) support respectively by the first rotating part (13) and the second rotating part (15) and are rotatably connected, the bottom plate (12) that worm gear (19) is arranged on screw rod (14) top is gone up and engages with screw rod (14), the middle part of swingle (21) is rotatably arranged on middle supporting plate (2), the two ends of swingle (21) are rotatably connected with one end of first connecting rod (11) and one end of second connecting rod (20) respectively, the other end of first connecting rod (11) and the other end of second connecting rod (20) are rotatably connected with a resonance device (3) respectively.
2. a kind of quake protection of adjustable resonance frequency is hammered into shape according to claim 1, it is characterized in that: described quake protection hammer also comprises the first gland (10) and the second gland (18), the other end of first connecting rod (11) and the other end of second connecting rod (20) are rotatably connected with a resonance device (3) respectively by the first gland (10) and the second gland (18).
3. a kind of quake protection of adjustable resonance frequency is hammered into shape according to claim 2, it is characterized in that: described first rotating part (13) and the second rotating part (15) are bearing.
4. a kind of quake protection of adjustable resonance frequency is hammered into shape according to claim 3, it is characterized in that: each resonance device (3) includes weight (7), steel strand wire (8), the recessed wheels in top (6) and bottom recessed wheels (9), the recessed wheels in top (6) and bottom recessed wheels (9) are arranged on middle supporting plate (2) from top to bottom successively, steel strand wire (8) are through the recessed wheels in top (6) and bottom recessed wheels (9), one end of steel strand wire (8) is connected with the first gland (10) or the second gland (18), the other end of steel strand wire (8) is connected with weight (7).
5. the quake protection hammer of a kind of adjustable resonance frequency according to claim 4, is characterized in that: the recessed wheels in described top (6) and bottom recessed wheels (9) comprise that 2-6 is individual recessedly to take turns respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510202518.8A CN104753013B (en) | 2015-04-24 | 2015-04-24 | A kind of quake protection hammer of adjustable resonant frequency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510202518.8A CN104753013B (en) | 2015-04-24 | 2015-04-24 | A kind of quake protection hammer of adjustable resonant frequency |
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| Publication Number | Publication Date |
|---|---|
| CN104753013A true CN104753013A (en) | 2015-07-01 |
| CN104753013B CN104753013B (en) | 2017-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510202518.8A Active CN104753013B (en) | 2015-04-24 | 2015-04-24 | A kind of quake protection hammer of adjustable resonant frequency |
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| Country | Link |
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| CN (1) | CN104753013B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105140868A (en) * | 2015-08-19 | 2015-12-09 | 国家电网公司 | Rotary overhead line autostabilizer |
| CN108711813A (en) * | 2018-05-30 | 2018-10-26 | 安徽省含山县兴建铸造厂 | A kind of damper for the ponding that anti-skidding can be shifted elsewhere for garrison duty |
| CN112952710A (en) * | 2021-04-15 | 2021-06-11 | 浙江维思无线网络技术有限公司 | Intelligent lead shockproof hammer |
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| CN1731640A (en) * | 2005-08-12 | 2006-02-08 | 仝合泽 | Energy-saving vibration-preventing hammer |
| CN101859995A (en) * | 2009-04-09 | 2010-10-13 | 中国电力科学研究院 | Active antivibrator and active vibration-proof method of overhead transmission line |
| CN102545124A (en) * | 2012-01-09 | 2012-07-04 | 广东电网公司电力科学研究院 | Power transmission line anti-galloping device having adaptive frequency modulation function |
| CN202363850U (en) * | 2011-12-09 | 2012-08-01 | 辽宁省电力有限公司沈阳超高压分公司 | Active anti-galloping device of overhead transmission line |
| CN202513529U (en) * | 2011-09-30 | 2012-10-31 | 马彬 | Auto-excitation type deicing shockproof hammer |
| CN103944130A (en) * | 2014-04-21 | 2014-07-23 | 国家电网公司 | Temperature sensing automatic variable resonance frequency circuit antivibrator |
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2015
- 2015-04-24 CN CN201510202518.8A patent/CN104753013B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1731640A (en) * | 2005-08-12 | 2006-02-08 | 仝合泽 | Energy-saving vibration-preventing hammer |
| CN101859995A (en) * | 2009-04-09 | 2010-10-13 | 中国电力科学研究院 | Active antivibrator and active vibration-proof method of overhead transmission line |
| CN202513529U (en) * | 2011-09-30 | 2012-10-31 | 马彬 | Auto-excitation type deicing shockproof hammer |
| CN202363850U (en) * | 2011-12-09 | 2012-08-01 | 辽宁省电力有限公司沈阳超高压分公司 | Active anti-galloping device of overhead transmission line |
| CN102545124A (en) * | 2012-01-09 | 2012-07-04 | 广东电网公司电力科学研究院 | Power transmission line anti-galloping device having adaptive frequency modulation function |
| CN103944130A (en) * | 2014-04-21 | 2014-07-23 | 国家电网公司 | Temperature sensing automatic variable resonance frequency circuit antivibrator |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105140868A (en) * | 2015-08-19 | 2015-12-09 | 国家电网公司 | Rotary overhead line autostabilizer |
| CN108711813A (en) * | 2018-05-30 | 2018-10-26 | 安徽省含山县兴建铸造厂 | A kind of damper for the ponding that anti-skidding can be shifted elsewhere for garrison duty |
| CN112952710A (en) * | 2021-04-15 | 2021-06-11 | 浙江维思无线网络技术有限公司 | Intelligent lead shockproof hammer |
| CN112952710B (en) * | 2021-04-15 | 2022-05-17 | 浙江维思无线网络技术有限公司 | Intelligent lead shockproof hammer |
Also Published As
| Publication number | Publication date |
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| CN104753013B (en) | 2017-06-13 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yu Chunlai Inventor after: Liu Yang Inventor after: Zhu Xuecheng Inventor after: Li Tong Inventor after: Zhang Dewen Inventor after: Liu Gongqiang Inventor after: Zhang Hongda Inventor after: Guo Jingang Inventor before: Yu Chunlai Inventor before: Liu Yang Inventor before: Zhu Xuecheng Inventor before: Li Tong Inventor before: Zhang Dewen Inventor before: Liu Gongqiang Inventor before: Zhang Hongda |
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| COR | Change of bibliographic data | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160909 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant after: State Grid Corporation of China Applicant after: Heilongjiang Electric Power Research Institute Applicant after: STATE GRID EAST INNER MONGOLIA ELECTRIC POWER COMPANY ELECTRIC POWER RESEARCH INSTITUTE Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant before: State Grid Corporation of China Applicant before: Heilongjiang Electric Power Research Institute |
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| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yu Chunlai Inventor after: Guo Jingang Inventor after: Liu Yang Inventor after: Zhu Xuecheng Inventor after: Gao Ziwei Inventor after: Chen Haidong Inventor after: Li Tong Inventor after: Zhang Dewen Inventor after: Liu Gongqiang Inventor after: Zhang Hongda Inventor before: Yu Chunlai Inventor before: Liu Yang Inventor before: Zhu Xuecheng Inventor before: Li Tong Inventor before: Zhang Dewen Inventor before: Liu Gongqiang Inventor before: Zhang Hongda Inventor before: Guo Jingang |
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