CN110429542B - A shock attenuation solidus device for vacuum circuit breaker - Google Patents
A shock attenuation solidus device for vacuum circuit breaker Download PDFInfo
- Publication number
- CN110429542B CN110429542B CN201910657555.6A CN201910657555A CN110429542B CN 110429542 B CN110429542 B CN 110429542B CN 201910657555 A CN201910657555 A CN 201910657555A CN 110429542 B CN110429542 B CN 110429542B
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- winding
- cable
- support
- shock absorber
- circuit breaker
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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
- H02G7/05—Suspension arrangements or devices for electric cables or lines
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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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- Vibration Dampers (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses a damping wire fixing device for a vacuum circuit breaker, which belongs to the technical field of auxiliary equipment of the circuit breaker. The invention not only effectively disperses the force application points of the contact between the cable and the telegraph pole, but also can reduce the influence of the vibration generated by strong wind blowing on the stability of the contact between the cable and the breaker body.
Description
Technical Field
The invention belongs to the technical field of auxiliary equipment of circuit breakers, and particularly relates to a damping wire fixing device for a vacuum circuit breaker.
Background
In the field of power transmission, circuit breakers are used in a very wide variety of applications. The insulating pull rod is a key component of the circuit breaker, one end of the insulating pull rod is in transmission connection with the spring operating mechanism, the other end of the insulating pull rod is in transmission connection with the moving contact of the vacuum arc-extinguishing chamber, and under the rapid action of the spring operating mechanism, the insulating pull rod drives the moving contact of the vacuum arc-extinguishing chamber to move, so that the rapid opening and closing of the moving contact and the static contact of the vacuum arc-extinguishing chamber are realized. When the moving contact and the static contact of the arc extinguish chamber are switched on, the moving contact and the static contact are contacted, and the moving contact and the static contact are kept in good electric contact under certain pressure.
At present, current vacuum circuit breaker generally installs on high-voltage wire pole, and the cable conductor of fixing between two adjacent high-voltage wire poles this moment receives the effect of gravity can progressively drop downwards for a long time, and the flagging cable conductor can take place violent rocking under blowing of strong wind from this centre, and long this in the past, the cable conductor contact when installing of cable conductor when rocking can influence a lot of acutely is installed, consequently needs to propose a new technical scheme and solves above-mentioned problem.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a damping wire fixing device for a vacuum circuit breaker, which not only disperses the force application points of contact between a cable and a telegraph pole, but also can reduce the influence of vibration generated by strong wind blowing on the stability of contact between the cable and a circuit breaker body.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a shock attenuation solidus device for vacuum circuit breaker, includes the support, be equipped with the winding group that is used for crisscross winding cable conductor on the support in the outside of circuit breaker body, the support is equipped with bumper shock absorber one in the winding group, the lower extreme of bumper shock absorber one is installed on the support, and its upper end sets firmly guide ring one that the power supply cable was worn to establish.
Through adopting above-mentioned technical scheme, the cable conductor is worn to establish on the guide ring one of bumper shock absorber one, and the strong wind blows the vibrations that bring this moment and can obtain effectual weakening under the link of bumper shock absorber, the setting of winding group simultaneously for be located the cable conductor of crisscross winding on the winding group each other, not only dispersed the application of force point of contact between cable conductor and the wire pole effectively this moment, but also can reduce because of the strong wind blows the stability influence of the vibrations that produce to contact between cable conductor and the circuit breaker body.
The invention is further configured to: the winding group comprises a plurality of winding rods which are arranged at intervals and used for winding cables, and the outer wall of the circumference of each winding rod is wrapped with at least one layer of damping washer.
Through adopting above-mentioned technical scheme, damping washer's setting for certain elasticity has when the cable conductor is convoluteed on the wire winding pole, can effectively reduce the violent vibrations of the cable conductor that arouses because of strong wind blows, has improved its shock attenuation performance greatly.
The invention is further configured to: the support is rotatably connected with a screw rod and a guide rod, the lower end of the first shock absorber is connected to the screw rod in a threaded mode and can slide along the extending direction of the screw rod, the two ends of the guide rod are connected to the support, the center of the guide rod is matched with the lower end of the first shock absorber in a sliding mode, a stepping motor is arranged on the support, the free end portion of the screw rod is connected to an output shaft of the stepping motor, and the highest position point of the first guide ring is lower than a winding position point of the winding rod.
The flagging degree of cable conductor is big more, big wind is also big more to its influence this moment, the vibrations of cable conductor this moment are also more violent, from this violent vibrations can destroy the stability of contact between cable conductor and the circuit breaker body greatly, consequently, through adopting above-mentioned technical scheme, rotate through step motor drive screw, under the limiting displacement of guide bar, make the extending direction round trip movement that can follow the screw rod of a bumper shock absorber that is located on the screw rod, the stroke length of cable conductor between winding group and bumper shock absorber is one prolonged from this, consequently, the flagging degree of cable conductor at built on stilts section has been weakened greatly, and then weakened the influence power of big wind to the cable conductor, make the cable conductor have better anti-seismic performance.
The invention is further configured to: the lower extreme of wire winding pole rotates to be connected on the support, just be equipped with the worm wheel on the wire winding pole, the worm wheel sets up with corresponding wire winding pole is coaxial, be equipped with on the support with worm wheel engaged with worm, be equipped with the linkage subassembly between worm and the screw rod.
Because the overhead cable conductor that sets up is great because of its self weight, its flagging force is also great, only rely on screw rod and bumper shock absorber threaded connection between one this moment, it is very little to draw power, this moment through adopting above-mentioned technical scheme, with the help of the frictional force between cable conductor and the wire winding pole, under worm gear's effect, can drive the worm through the linkage subassembly and rotate, the worm further drives the worm wheel and rotates this moment, the wire winding pole can rotate along the direction that the cable conductor removed this moment, further drive the direction removal of cable conductor towards the circuit breaker body, in order to tighten up the cable conductor on less scope, the cable conductor has reduced the sag of cable conductor at the overhead section.
The invention is further configured to: the linkage assembly comprises a first gear arranged at the end part of the screw rod and a second gear arranged at the end part of the worm, and the first gear and the second gear are driven by a chain or meshed with each other.
Because the crisscross winding of cable conductor is on the winding rod, along cable conductor winding direction this moment, the rotation direction of two adjacent winding rods is opposite, consequently through adopting above-mentioned two kinds of concrete operation methods, can make the corresponding winding rod of worm drive rotate to promote tightening up of cable conductor, it is very convenient.
The invention is further configured to: and a second shock absorber is arranged on one side of the support close to the circuit breaker body, the lower end of the second shock absorber is fixedly arranged on the support, and the upper end of the second shock absorber is fixedly provided with a second guide ring for a cable to penetrate through.
Through adopting above-mentioned technical scheme, the setting of bumper shock absorber two can further weaken its vibrations, has set up the multichannel guarantee for alleviateing vibrations.
The invention is further configured to: a plurality of anti-skid grains are arranged on the damping washer.
Through adopting above-mentioned technical scheme, the frictional force between cable conductor and the cushion ring has been improved in the setting of antiskid line, has reduced the emergence of the cable conductor phenomenon of skidding.
The invention is further configured to: and a limiting baffle is arranged at the upper end of the winding rod.
Through adopting above-mentioned technical scheme, reduced the phenomenon emergence that cable conductor and winding rod break away from each other, stability when having improved the cable conductor winding.
In conclusion, the invention has the following beneficial effects:
1. the invention not only disperses the force application points of the contact between the cable and the telegraph pole, but also can reduce the influence of the vibration generated by strong wind blowing on the stability of the contact between the cable and the breaker body;
2. optimized, the friction between the cable and the damping washer is improved due to the arrangement of the anti-skidding lines, and the occurrence of the phenomenon of slipping of the cable is reduced.
Drawings
Fig. 1 is a perspective view of a shock-absorbing wire fixing device for a vacuum circuit breaker;
FIG. 2 is an enlarged view of A in FIG. 1;
fig. 3 is a left side view of a shock-absorbing wire fixing device for a vacuum circuit breaker.
Description of the drawings: 1. a support; 2. winding; 3. a first shock absorber; 4. a first guide ring; 5. a wire winding rod; 6. a cushion ring; 7. a screw; 8. a guide bar; 9. a stepping motor; 10. a winding site; 11. a worm gear; 12. a worm; 13. a linkage assembly; 14. a first gear; 15. a second gear; 16. a second shock absorber; 17. a second guide ring; 18. anti-skid lines; 19. a limit baffle; 20. a circuit breaker body; 21. and (3) a cable.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
A shock attenuation solidus device for vacuum circuit breaker can be used for fixed cable conductor 21, improves the stability of the contact between cable conductor 21 and the circuit breaker body 20. As shown in fig. 1 and 2, the circuit breaker comprises a bracket 1, wherein the bracket 1 is fixedly connected to the bracket 1 of a circuit breaker body 20, and a winding group 2 for winding cables 21 in a staggered manner is arranged on the bracket 1 outside the circuit breaker body 20. Above-mentioned wire winding group 2 includes that eight two liang intervals set up, and is used for twining wire winding pole 5 of cable conductor 21, and above-mentioned wire winding pole 5 is vertical installs at the up end of support 1 to every wire winding pole 5's below is all rotated and is connected on support 1, and its upper end is equipped with limit baffle 19. Therefore, an operator can wind the cable 21 on the corresponding winding rods 5 in a left-right mode in a mutually crossed manner, force application points between the cable 21 and the telegraph pole can be dispersed on the plurality of winding rods 5, force application is dispersed, and stability of the cable 21 in installation is greatly improved.
In order to improve the damping performance, as shown in fig. 2 and 3, a damper i 3 is vertically installed on the central position inside the winding set 2 of the bracket 1, the damper i 3 can adopt a spring damper, meanwhile, the lower end of the damper i 3 is installed on the bracket 1, the upper end of the damper i 3 is fixedly provided with a circular guide ring i 4, the lower end of the guide ring i 4 is welded on the upper end of the damper i 3, a circular through hole at the upper end of the guide ring i 4 can be used for a cable 21 to penetrate through, so that the limiting and guiding effects are achieved, and in addition, the highest position point of the guide ring i 4 is lower than the winding position point 10 of the winding rod 5. Under the action of the first shock absorber 3, the violent vibration of the cable 21 caused by strong wind can be effectively reduced, and the shock absorption performance of the cable is improved.
In order to further improve the damping performance, as shown in fig. 2 and fig. 3, the outer wall of the circumference of the cylindrical winding rod 5 is wrapped with two layers of damping washers 6, the damping washers 6 are elastic rubber washers, and a plurality of anti-skid lines 18 are arranged on the damping washers 6, and the anti-skid lines 18 are uneven protruding structures which are obliquely arranged. Because the elastic rubber gasket has certain elasticity, the elastic rubber gasket can play a good role in alleviating the cable 21 wound on the winding rod 5, further effectively reduce the violent vibration of the cable 21 caused by strong wind blowing, and greatly improve the damping performance of the elastic rubber gasket.
As shown in fig. 2 and 3, the larger the sagging degree of the overhead section of the cable 21 is, the larger the influence of strong wind on the overhead section of the cable 21 is, and the more violent the vibration of the cable 21 is, so that the violent vibration can greatly destroy the contact stability between the cable 21 and the breaker body 20, therefore, in order to make the cable 21 have good anti-vibration performance, a cylindrical screw rod 7 and a cylindrical guide rod 8 are installed on the bracket 1, and meanwhile, the screw rod 7 and the guide rod 8 are arranged in parallel at intervals, and bearings at two ends of the screw rod 7 are connected to the bracket 1, and the central part of the screw rod is in threaded connection with the lower end of the first damper 3. In addition, two ends of the guide rod 8 are fixedly connected to the support 1, the center of the guide rod is matched with the lower end of the first shock absorber 3 in a sliding and inserting mode, the support 1 is further provided with a stepping motor 9, and a rainproof and sun-proof protective cover is arranged outside the stepping motor 9. Meanwhile, the free end of the screw 7 is fixedly connected to an output shaft of the stepping motor 9, the stepping motor 9 is driven, the stepping motor 9 drives the screw 7 to rotate, and under the limiting effect of the guide rod 8, the first shock absorber 3 positioned on the screw 7 can move back and forth along the extending direction of the screw 7, so that the stroke length of the cable 21 between the winding set 2 and the first shock absorber 3 is prolonged, the sag of the cable 21 in an overhead section is greatly weakened, the influence of strong wind on the cable 21 is weakened, and the cable 21 has better anti-seismic performance.
As shown in fig. 2 and 3, because the overhead cable 21 has a large sagging force due to its own weight, only the screw 7 is connected with the damper-3, the pulling force is small, and in order to reduce the sagging degree of the cable 21 in the overhead section, a worm wheel 11 is provided on each winding rod 5 outside the damper-3, the worm wheel 11 is coaxially arranged with the corresponding winding rod 5, a worm 12 engaged with the worm wheel 11 is further mounted on the bracket 1, and a linkage assembly 13 is provided between the worm 12 and the screw 7. The linkage mechanism comprises a first gear 14 arranged at the end of the screw 7 and a second gear 15 arranged at the end of the worm 12, wherein the first gear 14 is arranged coaxially with the screw 7, and the second gear 15 is arranged coaxially with the worm 12. For convenience of description, when the worm wheel 11 engaged with the worm 12 rotates clockwise, the winding rod 5 coaxially disposed with the worm wheel 11 also rotates clockwise, and the first gear 14 and the second gear 15 are driven by the chain (i.e., the rotation direction between the worm 12 and the screw 7 is consistent). Therefore, by means of the friction force between the cable 21 and the winding rod 5, the screw 7 rotates to enable the damper I3 to move along the extending direction of the screw 7, and the cable 21 is pulled towards the direction of the breaker body 20. Meanwhile, the first gear 14 and the chain which are coaxially arranged with the screw 7 further drive the second gear 15 to rotate, so that the worm 12 rotates along with the worm, the winding rod 5 can rotate along the moving direction of the cable 21 at the moment, the cable 21 is further driven to move towards the breaker body 20, the cable 21 is tightened in a smaller range, and the sag of the cable 21 in the overhead arrangement section is reduced.
As shown in fig. 2 and 3, when the worm wheel 11 engaged with the worm 12 rotates counterclockwise, the winding rod 5 coaxially disposed with the worm wheel 11 also rotates counterclockwise, and the first gear 14 and the second gear 15 are engaged with each other (i.e., the rotation direction between the worm 12 and the screw 7 is opposite). Therefore, by means of the friction force between the cable 21 and the winding rod 5, the screw 7 rotates to enable the damper I3 to move along the extending direction of the screw 7, and the cable 21 is pulled towards the direction of the breaker body 20. Meanwhile, the first gear arranged coaxially with the screw 7 can drive the second gear 15 to rotate, so that the worm 12 rotates along with the first gear, the winding rod 5 can rotate along the moving direction of the cable 21, the cable 21 is further driven to move towards the breaker body 20, the cable 21 is tightened in a small range, and the sag of the cable 21 in the overhead arrangement section is reduced.
In order to further improve the damping effect, as shown in fig. 2 and 3, a second damper 16 is installed on one side of the bracket 1 close to the circuit breaker body 20, the second damper 16 is vertically arranged, the lower end of the second damper is fixedly arranged on the bracket 1, and a second annular guide ring 17 for the cable 21 to pass through is fixedly arranged at the upper end of the second damper 16. Meanwhile, a third damper is installed on one side, far away from the breaker body 20, of the support 1, the third damper is easy to vertically arrange, the lower end of the third damper is fixedly arranged on the upper end face of the support 1, a third annular guide ring is fixedly arranged at the upper end of the third damper, and the cable 21 penetrates through the third guide ring. Therefore, the second shock absorber 16 and the third shock absorber can further weaken the shock of the second shock absorber, and multiple guarantees are provided for relieving the shock.
The specific embodiments are only for explaining the present invention, and the present invention is not limited thereto, and those skilled in the art can make modifications without inventive contribution to the present embodiments as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (5)
1. A shock absorption wire fixing device for a vacuum circuit breaker comprises a support (1) and is characterized in that a winding group (2) for winding a cable (21) in a staggered manner is arranged on the outer side of a breaker body (20) of the support (1), a shock absorber I (3) is arranged in the winding group (2) of the support (1), the lower end of the shock absorber I (3) is installed on the support (1), and the upper end of the shock absorber I is fixedly provided with a guide ring I (4) for the cable (21) to penetrate through; the winding group (2) comprises a plurality of winding rods (5) which are arranged at intervals and used for winding cables (21), and the outer circumferential wall of each winding rod (5) is coated with at least one layer of damping washer (6); the wire winding device is characterized in that a screw rod (7) and a guide rod (8) are rotatably connected to the support (1), the lower end of the first shock absorber (3) is in threaded connection with the screw rod (7) and can slide along the extending direction of the screw rod (7), two ends of the guide rod (8) are connected to the support (1), the center of the guide rod is in sliding fit with the lower end of the first shock absorber (3), a stepping motor (9) is arranged on the support (1), the free end of the screw rod (7) is connected to an output shaft of the stepping motor (9), and the highest point of the first guide ring (4) is lower than a winding point (10) of the wire winding rod (5); the lower extreme of wire winding pole (5) rotates to be connected on support (1), and be equipped with worm wheel (11) on wire winding pole (5), worm wheel (11) and the coaxial setting of corresponding wire winding pole (5), be equipped with on support (1) with worm (12) that worm wheel (11) engaged with, be equipped with linkage subassembly (13) between worm (12) and screw rod (7).
2. The shock-absorbing wire fixing device for the vacuum circuit breaker according to claim 1, wherein the linkage assembly (13) comprises a first gear (14) arranged at the end of the screw rod (7) and a second gear (15) arranged at the end of the worm (12), the first gear (14) and the second gear (15) are driven by a chain, or the first gear (14) and the second gear (15) are meshed with each other.
3. The shock-absorbing wire fixing device for the vacuum circuit breaker according to claim 1, wherein a second shock absorber (16) is arranged on one side of the bracket (1) close to the breaker body (20), the lower end of the second shock absorber (16) is fixedly arranged on the bracket (1), and the upper end of the second shock absorber is fixedly provided with a second guide ring (17) for the cable (21) to penetrate through.
4. The shock-absorbing wire fixing device for the vacuum circuit breaker as claimed in claim 1, wherein the shock-absorbing washer (6) is provided with a plurality of anti-skid lines (18).
5. The shock-absorbing wire fixing device for the vacuum circuit breaker according to claim 1, wherein the upper end of the wire winding rod (5) is provided with a limit stop (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910657555.6A CN110429542B (en) | 2019-07-19 | 2019-07-19 | A shock attenuation solidus device for vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910657555.6A CN110429542B (en) | 2019-07-19 | 2019-07-19 | A shock attenuation solidus device for vacuum circuit breaker |
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| Publication Number | Publication Date |
|---|---|
| CN110429542A CN110429542A (en) | 2019-11-08 |
| CN110429542B true CN110429542B (en) | 2020-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910657555.6A Active CN110429542B (en) | 2019-07-19 | 2019-07-19 | A shock attenuation solidus device for vacuum circuit breaker |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0033223A2 (en) * | 1980-01-24 | 1981-08-05 | Slater Steel Industries Limited | Vibration absorber for aerially suspended conductors and cables |
| CN101398036A (en) * | 2007-09-29 | 2009-04-01 | 上海驰风机电科技有限公司 | Connection device |
| CN106783118A (en) * | 2016-12-30 | 2017-05-31 | 国网山东省电力公司蓬莱市供电公司 | Power transformation transformer group |
| CN207409984U (en) * | 2017-10-27 | 2018-05-25 | 四川嘉义索隐科技有限公司 | For the cable shock-absorption device in power station |
| CN208422770U (en) * | 2018-05-22 | 2019-01-22 | 河北优创电气有限公司 | A kind of novel vacuum circuit breaker |
| CN208797484U (en) * | 2018-10-26 | 2019-04-26 | 盐城市华悦汽车部件有限公司 | A kind of fixed device of electric automobile high-voltage wire harness |
-
2019
- 2019-07-19 CN CN201910657555.6A patent/CN110429542B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0033223A2 (en) * | 1980-01-24 | 1981-08-05 | Slater Steel Industries Limited | Vibration absorber for aerially suspended conductors and cables |
| CN101398036A (en) * | 2007-09-29 | 2009-04-01 | 上海驰风机电科技有限公司 | Connection device |
| CN106783118A (en) * | 2016-12-30 | 2017-05-31 | 国网山东省电力公司蓬莱市供电公司 | Power transformation transformer group |
| CN207409984U (en) * | 2017-10-27 | 2018-05-25 | 四川嘉义索隐科技有限公司 | For the cable shock-absorption device in power station |
| CN208422770U (en) * | 2018-05-22 | 2019-01-22 | 河北优创电气有限公司 | A kind of novel vacuum circuit breaker |
| CN208797484U (en) * | 2018-10-26 | 2019-04-26 | 盐城市华悦汽车部件有限公司 | A kind of fixed device of electric automobile high-voltage wire harness |
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| CN110429542A (en) | 2019-11-08 |
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