A kind of anti-dance pendulum and anti-dance device
Technical field
The utility model relates to power Transmissions, and in particular to a kind of anti-dance pendulum and anti-dance device.
Background technique
In aerial EHV transmission, compared with solid conductor, split conductor can be such that the inductance of power transmission line reduces, capacitor increases
Greatly, reduce it to the wave impedance of alternating current, improve the ability to transmit electricity of route, so generally using split conductor.But it divides
Conducting wire often generates wave under the action of the wind, and this wave can generate excessive tension to conducting wire, make conducting wire due to fatigue
Accumulation and short-term, go offline, when serious, this brandishing can cause machine to such as iron tower construction member, insulator chain one kind transmission facility
Tool damage, What is more, waves and will lead to collapse of iron tower.And in the prior art generally by conducting wire be arranged anti-dance device come
Reduce waving for split conductor, such as application No. is CN200820233785.7, entitled six division double-pendulum anti-galloping damping spacer rod
Chinese patent application disclose a kind of anti-dance device structure, six division double-pendulum anti-galloping damping spacer rod include a compact six
Cracking damping conductor spacer, six cracking damping conductor spacer of compact are a regular hexagon structure, divide and damp in the compact six
Conductor spacer is wherein equipped with symmetrical " people " font yoke plate on one side, and the top and the division of compact six for being somebody's turn to do " people " font yoke plate damp
Conductor spacer is fixedly connected, and the end of " people " font yoke plate lower part Liang Ge branch is respectively equipped with a pendulum;" people " font
The centroid that the line of symmetry of yoke plate passes through six cracking damping conductor spacer of compact.It is damped using six above-mentioned division double-pendulum anti-gallopings
Although conductor spacer can reduce waving for split conductor, it only reduces waving for split conductor by pendulum, and there are quality
Greatly, ineffective problem.
Summary of the invention
The purpose of this utility model is to propose a kind of anti-dance pendulum, to promote using effect.
A kind of anti-dance pendulum described in the utility model, including tup and the connection branch being fixedly connected on the tup
Frame, the connecting bracket stretch out in the tup upwards, are equipped with closed cylindrical cavity, the cylindrical empty in the tup
The central axis of chamber extends in left-right direction, the intracavitary pouring weight being equipped in cylindrical shape of the cylindrical empty, the pouring weight and institute
It states cylindrical cavity to be slidably matched, the side wall of the cylindrical cavity is equipped at least one inner spiral groove, described at least one
Inner spiral groove extends to the right end of the side wall from the left end of the side wall, and the cylindrical empty is intracavitary to be filled with damping oil.
Further, the tup is equipped with the filling opening being connected to the cylindrical cavity, is equipped at the filling opening
For blocking the blocking of the filling opening.
Further, the right end of the side wall of the cylindrical cavity is equipped with annular groove, the inner spiral groove and the annular groove
It is connected, the groove depth of the annular groove is greater than the groove depth of the inner spiral groove.
Further, the groove depth of the inner spiral groove gradually deepens from left to right.
Further, the difference of the diameter of the diameter of the cylindrical cavity and the pouring weight not less than 1mm and is not more than 5mm.
Further, the length of the pouring weight not less than the one third of the length of the cylindrical cavity and is not more than described
2/3rds of the length of cylindrical cavity.
Further, the both ends of the pouring weight are rounded down.
Further, the tup includes cylinder and plugging plate, and the left end of the cylinder is closed and right-end openings, the closure
Plate blocks the opening of the right end of the cylinder, and the cylinder and the plugging plate are fixedly connected with by welding, institute
It states cylinder and the plugging plate surrounds the cylindrical cavity, the connecting bracket is fixedly connected on the cylinder.
The utility model also proposed a kind of anti-dance device, including frame, several wire clamps being mounted on frame and above-mentioned
Anti-dance pendulum, the top of the connecting bracket is fixedly connected on said frame, and the central axis of the frame is along front and back
To extension, the tup is located at the lower section of the frame.
The utility model structure is simple, increases cylindrical cavity and pouring weight, and benefit relative to solid anti-dance pendulum
Gluing resistive cooperation pouring weight and consume energy with damping oil, to promote the damping property of anti-dance pendulum, improves anti-dance pendulum
Using effect.
Detailed description of the invention
Fig. 1 is the cross-sectional view of anti-dance pendulum described in the utility model;
Fig. 2 is the cross-sectional view of connecting bracket and cylinder;
Fig. 3 is the structural schematic diagram of anti-dance device described in the utility model.
In figure: 1-cylinder;2-cylindrical cavities;3-pouring weights;4-plugging plates;5-annular grooves;6-inner spiral grooves;
7-connecting brackets;8-attachment bases;9-connecting holes;10-blockings;11-frames;12-wire clamps;13-connection bolts.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
A kind of anti-dance pendulum as depicted in figs. 1 and 2, including tup and the connecting bracket 7 being fixedly connected on tup, even
It connects bracket 7 and stretches out in tup upwards, closed cylindrical cavity 2 is equipped in tup, the central axis of cylindrical cavity 2 is along left and right
Direction extends, and cylindrical cavity 2 is surrounded by cylindrical circular side wall and two end walls for being located at side wall both ends, cylinder
The pouring weight 3 in cylindrical shape is equipped in shape cavity 2, pouring weight 3 and cylindrical cavity 2 are slidably matched, and pouring weight 3 can be in cylindrical empty
It is slided in chamber 2 along the central axial direction of cylindrical cavity 2, the side wall of cylindrical cavity 2 is equipped at least one inner spiral groove
6, at least one inner spiral groove 6 extends to the right end of side wall from the left end of side wall, is filled with damping oil in cylindrical cavity 2,
Damping oil can select silicone oil, inner spiral groove 6 for passing through for damping oil, while inner spiral groove 6 can play accommodate dregs with
Reduce a possibility that pouring weight 3 blocks, as shown in Figure 1, the side wall of cylindrical cavity 2 is equipped with an inner spiral groove 6, such as Fig. 2 institute
Show, the side wall of cylindrical cavity 2 is equipped with two equidistant inner spiral grooves 6.In the present embodiment, the groove depth of inner spiral groove 6
Not less than 2mm and it is not more than 5mm, the weight of pouring weight 3 includes but is not limited to 0.5kg, 1kg, 1.5kg, 2kg, 3kg.Cylindrical empty
The difference of the diameter of the diameter and pouring weight 3 of chamber 2 is not less than 1mm and is not more than 5mm.The length of pouring weight 3 is not less than cylindrical cavity 2
2/3rds of the one third of length and the length no more than cylindrical cavity 2.In order to reduce a possibility that pouring weight 3 blocks,
The both ends of pouring weight 3 are rounded down.
In order to facilitate filling and supplement damping oil, tup is equipped with the filling opening being connected to cylindrical cavity 2, at filling opening
Blocking 10 for blocking filling opening is installed.When it is implemented, blocking 10 and filling opening can be consolidated by way of being threadedly engaged
Surely it links together, filling with sealant can be sealed between blocking 10 and filling opening to realize.It can use a bolt
As blocking 10, sealant is smeared in the threaded portion of bolt when installation.
Further, the right end of the side wall of cylindrical cavity 2 is equipped with annular groove 5, and inner spiral groove 6 is connected with annular groove 5, ring
The groove depth of shape slot 5 is greater than the groove depth of inner spiral groove 6, and annular groove 5 is a dreg collecting slot, for collecting the slag in cylindrical cavity 2
Dregs.Further, the outer surface of tup is arranged in the dregs in maintenance in discharge dreg collecting slot, one end of filling opening for convenience,
The slot bottom of annular groove 5 is arranged in the other end of filling opening, makes liquid feeding mouth down when overhauling deslagging.As a kind of excellent
Choosing, the groove depth of inner spiral groove 6 gradually deepen from left to right, and the dregs in inner spiral groove 6 is facilitated to slide in annular groove 5.
In the present embodiment, tup includes cylinder 1 and plugging plate 4, and the left end of cylinder 1 is closed and right-end openings, is blocked
Plate 4 blocks the opening of the right end of cylinder 1, and cylinder 1 and plugging plate 4 are fixedly connected with by welding, cylinder 1 and closure
Plate 4 surrounds cylindrical cavity 2, and connecting bracket 7 is fixedly connected on cylinder 1.What tup, connecting bracket 7 and pouring weight 3 can use
Material includes but is not limited to stainless steel, cast iron.
Above-mentioned anti-dance pendulum when in use, since frequency is low, and amplitude is big for being mainly characterized by of waving of split conductor, is being waved
During dynamic, pouring weight 3 can be slided in cylindrical cavity 2 along the central axial direction of cylindrical cavity 2, thus squeezed air-damping
Oil, it is resistive using gluing for damping oil, energy can be consumed between damping oil and pouring weight 3 and between damping oil and cylindrical cavity 2
Amount, improves the damping property of anti-dance pendulum, improves the using effect of anti-dance pendulum, while utilizing the lubricity of damping oil
Can, to promote the greasy property between pouring weight 3 and cylindrical cavity 2.
The utility model also proposed a kind of anti-dance device, as shown in figure 3, the anti-dance device includes frame 11, is mounted on frame
Four wire clamps 12 and above-mentioned anti-dance pendulum on 11, frame 11 is annular in shape, which is suitable for conductors on quad bundled, connection
The top of bracket 7 is fixedly connected on the frame 11, and the central axis of frame 11 extends along the longitudinal direction, and tup is located at frame 11
Lower section.It further include connection bolt 13 and attaching nut, connecting bracket 7 is in inverted v-shaped, and two ends of 7 lower part of connecting bracket are welded
It connects on cylinder 1, the top of connecting bracket 7 is equipped with attachment base 8, and attachment base 8 is equipped at least two connecting holes 9, on frame 11
Equipped with connecting hole 9 relative to mounting hole, connection bolt 13 passes through connecting hole 9 and mounting hole and attaching nut cooperates, thus
Attachment base 8 and frame 11 are fixed together.It can also be fixedly connected on by bolt, nut between wire clamp 12 and frame 11
Together, wire clamp 12 is for clamping conducting wire.
When being arranged anti-dance device on split conductor, due to being provided with anti-dance pendulum, the torsion of split conductor can be changed
Therefore the parameters such as rigidity and torsional inertia, can reach reduction split conductor and wave to change the dynamic characteristics of split conductor
Effect, while consuming energy using pouring weight 3 and damping oil, improve damping property, can preferably reduce split conductor
Wave.