The anti-wire bouncing dynamic absorber of electric of a kind of five rod-type used for transmission line
Technical field
The invention belongs to field of overhead power transmission lines, specifically relate to the anti-wire bouncing dynamic absorber of electric of a kind of five rod-type used for transmission line.
Background technology
Along with the fast development of China's economy, need for electricity also maintains sustained and rapid growth.In order to ensure national energy security and economic security, there is the superhigh pressure of significant social and economic benefits, inevitable choice that extra-high voltage grid becomes China.But, because superhigh pressure, extra-high voltage grid need adopt bundle conductor, cause transmission line more easily to be waved.The harm of waving generation is many-sided, and flashover, tripping operation occur the lighter, and severe one causes gold utensil and insulator to damage, wire knochenbruch, broken string, shaft tower bolt looseness, come off, and even falls tower, thus cause great power grid accident, therefore, take the measure of anti-conductor galloping to be very necessary.Adopting on the deckle board of installation interval rod, install weight additional is exactly one of a kind of common anti-dance measure.What match with it has the off resonance pendulum of Canadian type and these two kinds of vibration isolators of Japannish resistance twisting anti-dance device, they can only eliminate the vibration in a direction, wherein off resonance pendulum is fixed pendulum, owing to there is no weakening spring, altogether weakening poor effect, fundamentally cannot eliminate the vibration of vertical direction, although and hinder twisting anti-dance device and be provided with anti-torsionspring, but owing to there is no perpendicular system spring, can only suppress reverse and waving of wire vertical direction can not be suppressed.And in actual use, wire not only exists the vibration of vertical direction, and there is very large reversing the trend, must be overcome simultaneously just can obtain desirable effect.
Application number be 200520074058.7 utility model disclose a kind of dynamic vibrating damper for preventing conductive wire from swinging with spring-mass Damper System, comprise wire clamp, weight, conductor spacer body, conductor spacer body is connected by two pieces, front and back and forms, four angles of conductor spacer body are all provided with wire clamp, uprighting spring cylinder and crossed strip cylinder are installed between two conductor spacer bodies, the lower end hinge of uprighting spring cylinder is contained on the hinge on the lower frame being arranged on conductor spacer body, and stretch out lower frame and be connected with weight, crossed strip cylinder is arranged symmetrically on the dual side-edge frame of conductor spacer body, its relative one end and uprighting spring cylinder are hinged, although this utility model solves pair waving of the vertical and torsional direction of outlet line, but need at least 3 sleeve spring cylinders, cause system configuration complicated, install more difficult.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the invention provides the anti-wire bouncing dynamic absorber of electric of a kind of five rod-type used for transmission line.Spring-mass Damper System reduces the complexity of Anti-galloping dynamic damper, and structure is simple, easy for installation; Two weights can rotating in same direction around hinge, and also can rotate in opposite directions, both rotation directions are relatively more flexible, determined by the concrete condition of conductor galloping; Effectively prevent waving of wire used for transmission line, for wire anti-dance field used for transmission line provides a kind of solution preventing conductor galloping, be with a wide range of applications.
In order to realize foregoing invention object, the present invention takes following technical scheme:
The anti-wire bouncing dynamic absorber of electric of a kind of five rod-type used for transmission line, described vibration absorber comprises wire clamp 1, conductor spacer body 2 and weight 7, described conductor spacer body 2 is connected by two pieces, front and back, and its four angles are all provided with described wire clamp 1, and wire clamp 1 and conductor spacer body 2 form conductor spacer.
Spring-mass Damper System is symmetricly set on the lower end frame of described conductor spacer body 2, described spring-mass Damper System comprises connecting rod 4, spring strut 3 and described weight 7, described spring strut 3 one end connects described weight 7, and the other end connects described connecting rod 4, and described two connecting rods 4 connect.
Described spring strut 3 comprises spring 8 and cylindrical shell 9, and described spring strut 3 is connected with described connecting rod 4 by described spring.
Described spring strut 3 is connected by hinge 10, and its distance of rotating around hinge 10 depends on stopping means 6.
Described stopping means 6 is spacer pin, positive stop lug boss or position-limiting cover.
Described two connecting rods 4 are connected by described hinge 5, and the angle of described two connecting rods 4 is 35 ° ~ 90 °.
The plane at described spring strut 3 and connecting rod 4 place and the plane parallel at described conductor spacer body 2 place, described two spring struts 3, two connecting rods 4 and described conductor spacer body 2 form planar five-bar mechanism.
Described two weights 7 both can also can rotate by rotating in same direction in opposite directions around described hinge 5;
Compared with prior art, beneficial effect of the present invention is: spring-mass Damper System reduces the complexity of Anti-galloping dynamic damper, and structure is simple, easy for installation; Two weights can rotating in same direction around hinge, and also can rotate in opposite directions, both rotation directions are relatively more flexible, determined by the concrete condition of conductor galloping; For wire anti-dance field used for transmission line provides a kind of solution preventing conductor galloping, be with a wide range of applications.
Accompanying drawing explanation
Fig. 1 is the structural representation of the specific embodiment of the invention;
Fig. 2 is the connection diagram of connecting rod, spring strut and weight;
Wherein: 1. wire clamp, 2. conductor spacer body, 3. spring strut, 4. connecting rod, 5. hinge, 6. stopping means, 7. weight, 8. spring, 9. cylindrical shell, 10. hinge.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
As Fig. 1, the anti-wire bouncing dynamic absorber of electric of a kind of five rod-type used for transmission line, described vibration absorber comprises wire clamp 1, conductor spacer body 2 and weight 7, and described conductor spacer body 2 is connected by two pieces, front and back, its four angles are all provided with described wire clamp 1, and wire clamp 1 and conductor spacer body 2 form conductor spacer.Spring-mass Damper System is symmetricly set on the lower end frame of described conductor spacer body 2, described spring-mass Damper System comprises connecting rod 4, spring strut 3 and described weight 7, described spring strut 3 one end connects described weight 7, and the other end connects described connecting rod 4, and described two connecting rods 4 connect.
Described spring strut 3 comprises spring 8 and cylindrical shell 9, and described spring strut 3 is connected with described connecting rod 4 by described spring.
Described spring strut 3 is connected by hinge 10, and its distance of rotating around hinge 10 depends on stopping means 6, and two weights can not collide with the left and right side frame of conductor spacer body 2.Meanwhile, stopping means 6 should make the hinge 5 of connection 2 connecting rods 4 be positioned at the hollow out of conductor spacer body 2 all the time and not collide with conductor spacer body 2.
Described stopping means 6 is spacer pin, positive stop lug boss or position-limiting cover.
Described two connecting rods 4 are connected by described hinge 5, and the angle of described two connecting rods 4 is 35 ° ~ 90 °.
The plane at described spring strut 3 and connecting rod 4 place and the plane parallel at described conductor spacer body 2 place, described two spring struts 3, two connecting rods 4 and described conductor spacer body 2 form planar five-bar mechanism.
Described two weights 7 both can also can rotate by rotating in same direction in opposite directions around described hinge 5;
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit, although with reference to above-described embodiment to invention has been detailed description, those of ordinary skill in the field are to be understood that: still can modify to the specific embodiment of the present invention or equivalent replacement, and not departing from any amendment of spirit and scope of the invention or equivalent replacement, it all should be encompassed in the middle of right of the present invention.