CN105162043A - Line suspension device for spanning line change of distribution aerial circuit, and application thereof - Google Patents
Line suspension device for spanning line change of distribution aerial circuit, and application thereof Download PDFInfo
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- CN105162043A CN105162043A CN201510673428.7A CN201510673428A CN105162043A CN 105162043 A CN105162043 A CN 105162043A CN 201510673428 A CN201510673428 A CN 201510673428A CN 105162043 A CN105162043 A CN 105162043A
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- double pulleies
- pulleies unit
- thread
- changing
- wrap attachment
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Abstract
The invention relates to a line suspension device for spanning line change of a distribution aerial circuit, and the application thereof. The line suspension device comprises a hoisting support and pulling components arranged on the bottom of the hoisting support. The hoisting support comprises a top phase twin pulley block, two side twin pulley blocks and telescoping poles; the top phase twin pulley block and the two side twin pulley blocks are connected to form a triangular support through the telescoping poles. According to the invention, distribution lines respectively penetrate the three twin pulley blocks; old lines drive new lines to perform spanning line change; in a whole line change process, lines can only touch pulleys up and down, avoiding wearing lines by upper and lower frames of the pulleys, and improving safety; meanwhile the line suspension device can adapt for the line change work of different line spaces, has great versatility and high safety coefficiency, and is convenient to operate.
Description
Technical field
The present invention relates to a kind of distribution overhead line and cross over thread-changing wrap attachment and application thereof, belong to electric power overhaul technical field of tools.
Background technology
Rural power distribution overhead transmission line is because of its line properties reason, and the street corner, downtown area that the high-grade highway that leap vehicle is intensive often, the stream of people collect together and field etc., when above location restringing, there will be the safety problem of civil problem and vehicle and pedestrian.And the general methods such as taking crossing frame, crane suspension ring, road closure Feng Hang that adopts in existing thread-changing construction, mostly there is the problems such as time-consuming, effort, expense are high in these methods of present, affect efficiency of construction, increase construction cost, mobility and flexibility deficiency, and crossing frame, crane etc. itself exists by vehicle collision or the risk injuring pedestrian by a crashing object, the safety of crossing over thread-changing construction site can not be ensured.Meanwhile, the condition of construction that 10kV distribution overhead line crosses over high-grade highway particularly I and II highway is more common, and because vehicle flowrate is large, roadbed span is large, road traffic condition is complicated, and highway division is difficult to accomplish to seal row completely.
Therefore, need a kind of distribution overhead line of development badly and cross over thread-changing wrap attachment, meet and require low to operating environment, highly versatile, cost is low, and making uses simple, the requirement that coefficient of safety is high, under the prerequisite ensureing road, complete thread-changing construction operation safely.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of distribution overhead line and cross over thread-changing wrap attachment.
The present invention also provides above-mentioned a kind of distribution overhead line to cross over the using method of thread-changing wrap attachment.
Technical scheme of the present invention is as follows:
A kind of distribution overhead line crosses over thread-changing wrap attachment, comprise hoisting bracket and be arranged on the drawing part bottom hoisting bracket, described hoisting bracket comprises top phase double pulleies unit, two side double pulleies unit and telescopic strut, and described top phase double pulleies unit is connected for triangular supports by telescopic strut with two side double pulleies unit.Wrap attachment of the present invention makes distribution line run through wherein by three double pulleies unit respectively, leap thread-changing operation is carried out by the thread-changing mode of the new line of old tape, in whole thread-changing process, wire all can only touch pulley up and down, there will not be the situation of pulley upper and lower frames wearing and tearing wire, improve fail safe.
Preferably, described top phase double pulleies unit comprises fixed frame and is symmetricly set on two pulleys in fixed frame, is provided with active blade, is provided with suspension ring on the top of fixed frame, the bilateral symmetry of bottom is provided with U-shaped ring in the side of fixed frame.
Preferably, described side double pulleies unit comprises fixed frame and is symmetricly set on two pulleys in fixed frame, is provided with active blade, is provided with U-shaped ring on the top of fixed frame, bottom is provided with suspension ring in the side of fixed frame.
Preferably, described telescopic strut comprises round steel bar and connects the screw mandrel at round steel bar two ends, and one end of screw mandrel is provided with link, and link is fixedly connected with U-shaped ring by bolt.
Preferably, screw mandrel is provided with multiple stop nut.The benefit of this design is, stop nut is used for fixing screw mandrel, fixes for the position after regulating screw mandrel precession round steel bar, thus the length of fixing telescopic strut.
Preferably, the two ends of described round steel bar are respectively equipped with reinforcing nut, and screw mandrel is connected with round steel bar after running through reinforcing nut.The benefit of this design is, when screw mandrel is connected with the threaded one end of round steel bar, reinforces the intensity that nut can strengthen screw mandrel and round steel bar link, improves fastness and the fail safe of hoisting bracket further.
Preferably, be also connected with described telescopic strut in the bottom of two side double pulleies unit, the two ends of telescopic strut are connected by the hold-down nut be arranged on side double pulleies unit fixed frame.The benefit of this design is, because the suspension ring of side double pulleies unit bottom connect drawing part, connect telescopic strut in its bottom corresponding with the telescopic strut on the top of side double pulleies unit, ensure that the stability of two side double pulleies unit, also ensure that the resistance to overturning of triangular supports.
Preferably, described drawing part comprises safety warning tape and crash bearer, and one end of safety warning tape is connected with the suspension ring of side double pulleies unit bottom, and the other end is connected with crash bearer.
Distribution overhead line crosses over a using method for thread-changing wrap attachment, comprises the following steps,
(1) this wrap attachment is winched to electric wire masthead, open the active blade of phase double pulleies unit side, top, phase conductor in the loading of phase double pulleies unit will be pushed up;
(2) open the active blade of two side double pulleies unit sides successively, side double pulleies unit is loaded limit phase conductor;
(3) utilize security warning Tape movement wrap attachment to hoisting point position, when after wrap attachment determination hoisting point position, move and place crash bearer with fixing suspension centre;
(4) adopt the thread-changing mode of the new line of old tape, with first limit phase conductor, the order of rear middle phase conductor carries out wire replacing;
(5) after thread-changing completes, utilize safety warning tape to be moved to by wrap attachment and cross over electric pole place, shelves side, wire is withdrawn from from top phase double pulleies unit and side double pulleies unit, wrap attachment is hung down.
Preferably, in step (2), by the position regulating the length of telescopic strut to adjust two side double pulleies unit, load limit phase conductor to make two side double pulleies unit.
Beneficial effect of the present invention is:
1. wrap attachment of the present invention can shorten and crosses over the thread-changing on-the-spot thread-changing place operating time, can save and cross over thread-changing operating expenses, retrieves to cross over thread-changing and to have a power failure the loss caused, and can obtain good economic benefit;
2. utilize wrap attachment of the present invention to reduce number of work that distribution overhead line crosses over thread-changing demand, significantly reduces the labour intensity of staff, obtains personnel's benefit, saving manually can put in other O&M service works; Crossing over the thread-changing construction working time by shortening, also reducing construction interruption duration, significantly improving power supply reliability.
3. wrap attachment smart structural design of the present invention, functional, degree of safety is high, greatly can ensure the process of thread-changing operation, its Be very effective, and effect obviously, has good economic worth and application value.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of wrap attachment of the present invention;
Fig. 2 a is the front view pushing up phase double pulleies unit in the present invention;
Fig. 2 b is the vertical view pushing up phase double pulleies unit in the present invention;
Fig. 3 a is the front view of side double pulleies unit in the present invention;
Fig. 3 b is the vertical view of side double pulleies unit in the present invention;
Fig. 3 c is the left view of side double pulleies unit in the present invention;
Fig. 4 is the structural representation of the telescopic strut of side double pulleies unit lower end in the present invention;
Fig. 5 is the position relationship schematic diagram of the telescopic strut of hoisting bracket in the present invention;
Wherein: 1, push up phase double pulleies unit; 2, side double pulleies unit; 3, telescopic strut; 4, safety warning tape; 5, crash bearer; 101, fixed frame; 102, pulley; 103, suspension ring; 104, active blade; 105, U-shaped ring; 201, fixed frame; 202, pulley; 203, U-shaped ring; 204, suspension ring; 205, active blade; 301, round steel bar; 302, nut is reinforced; 303, stop nut; 304, screw mandrel; 305, link; 306, nut.
Embodiment
Below by embodiment, also the present invention will be further described by reference to the accompanying drawings, but be not limited thereto.
Embodiment 1:
The present embodiment provides a kind of distribution overhead line to cross over thread-changing wrap attachment, its overall structure as shown in Figure 1, comprise hoisting bracket and be arranged on the drawing part bottom hoisting bracket, hoisting bracket comprises top phase double pulleies unit 1, two side double pulleies unit 2 and telescopic strut 3, and top phase double pulleies unit 1 is connected for triangular supports by telescopic strut 3 with two side double pulleies unit 2.
Wherein, top phase double pulleies unit 1 comprises fixed frame 101 and symmetry and is arranged on two pulleys 102 in fixed frame, pass for wire between two pulleys 102, in whole thread-changing process, wire only rotates with pulley and rubs, do not rub with frame, decrease the frictional resistance of wire in moving process, simultaneously available protecting wire, prevent wire due to the excessive wearing and tearing caused that rub, fixed frame 101 side is provided with opening, opening is between two pulleys, being convenient to wire snaps in two pulleys, active blade 104 is provided with on the side of a side opening of fixed frame, one end and the fixed frame of active blade 104 are hinged, active blade can open or close opening, its objective is wire to snap in after in two pulleys and close active blade, prevent wire slippage from two pulleys in moving process, at the top welding hanging ring 103 of fixed frame, these suspension ring 103 are convenient is used for whole wrap attachment to sling high empty position, U-shaped ring 105 is welded in the bilateral symmetry of the bottom of fixed frame 101, U-shaped ring 105 is used for connecting telescopic strut.
Side double pulleies unit 2 comprises fixed frame 201 and symmetry and is arranged on two pulleys 202 in fixed frame, fixed frame 201 1 side opening, active blade 205 is provided with on the side of a side opening of fixed frame, one end and the fixed frame 201 of active blade 205 are hinged, active blade 205 can open or close opening, welds U-shaped ring 203, bottom welding hanging ring 204 on the top of fixed frame 201.Side double pulleies unit is substantially identical with the structure of top phase double pulleies unit, its difference is that U-shaped ring is different with the installation site of suspension ring, and the bottom of top phase double pulleies unit is symmetrical arranged two U-shaped rings, and in vertical state, the top of side double pulleies unit only arranges a U-shaped ring, and is the level of state.
Telescopic strut 3 comprises round steel bar 301 and connects the screw mandrel 304 at round steel bar two ends, and the two ends of round steel bar 301 are processed with a hole, and screw mandrel is threaded with silk hole, and one end of screw mandrel 304 is welded with spherical link 305, and screw mandrel is provided with two stop nuts 303.After the position after regulating screw mandrel precession round steel bar is fixing, stop nut 303 is tightened screw mandrel, thus the length of fixing telescopic strut.
When being combined into triangular supports, two U-shaped rings 105 of phase double pulleies unit 1 bottom, top are connected with it by the link 305 of bolt-through telescopic strut, the link of the other end 305 of telescopic strut 3 is connected with it by the horizontally U-shaped ring 203 on bolt-through side double pulleies unit top, connect horizontally U-shaped ring by the link at telescopic strut two ends between two side double pulleies unit, namely install between such three double pulleies unit and constitute triangular supports.
The suspension ring 204 of the bottom of two side double pulleies unit hang safety warning tape 4, and the bottom of safety warning tape 4 connects crash bearer 5.In thread-changing process, safety warning tape 4 effectively can play warning function, prevents the Pedestrians and vehicles generation security incident on road, improves the fail safe in operation process.Crash bearer 5 can the stability of available protecting wrap attachment in operation process.
The wrap attachment that the present embodiment provides adopts the mode of three groups of double pulleies unit, three groups of double pulleies unit are installed by telescopic strut and combines formation triangular supports, and the length of side of this triangular supports, adjustable angle (being regulated by telescopic strut), enable this triangular supports adapt to the thread-changing operation of different conductor spacing.During operation, make distribution line run through wherein respectively by three double pulleies unit, carry out leap thread-changing operation by the thread-changing mode of the new line of old tape, in whole thread-changing process, wire all can only touch pulley up and down, there will not be the situation of pulley upper and lower frames wearing and tearing wire, improves fail safe.
Embodiment 2:
The present embodiment provides a kind of distribution overhead line to cross over thread-changing wrap attachment, and as described in Example 1, its difference is structure: the two ends of round steel bar 301 are welded with respectively and reinforce nut 302, and screw mandrel 304 is threaded with round steel bar 301 after running through reinforcing nut 302.Consider the connective stability of screw mandrel 304 and round steel bar 301, be provided with in the end of round steel bar and reinforce nut 302, when screw mandrel is connected with the threaded one end of round steel bar, reinforce nut 302 and can strengthen screw mandrel 304 and the intensity of round steel bar 301 link, improve fastness and the fail safe of hoisting bracket further.
Embodiment 3:
The present embodiment provides a kind of distribution overhead line to cross over thread-changing wrap attachment, structure as described in Example 1, its difference is: in order to ensure the structural stability of two side double pulleies unit, described telescopic strut is also connected with in the bottom of two side double pulleies unit, and hold-down nut is welded with in the lower end of side double pulleies unit fixed frame, screw mandrel 304 two ends of this telescopic strut are connected with nut 306, this nut 306 plays fixation, when after the hold-down nut that the screw mandrel 304 at telescopic strut two ends welds through both sides, undertaken tightening by the nut 306 at screw mandrel two ends and fixedly connect.Because the suspension ring of side double pulleies unit bottom connect drawing part, connect telescopic strut in its bottom corresponding with the telescopic strut on the top of side double pulleies unit, ensure that the stability of two side double pulleies unit, also ensure that the resistance to overturning of triangular supports.
Embodiment 4:
The present embodiment provides a kind of distribution overhead line leap thread-changing wrap attachment to carry out thread-changing to 10kV distribution overhead line, and its operating process comprises the following steps,
(1) utilize crane that this wrap attachment is winched to electric wire masthead, open the active blade 104 of phase double pulleies unit 1 side, top, phase conductor in being loaded by top phase double pulleies unit 1;
(2) length of telescopic strut is first regulated to adjust the position of two side double pulleies unit 2, limit phase conductor can be loaded to make two side double pulleies unit 2, then open the active blade 205 of two side double pulleies unit sides successively, side double pulleies unit 2 is loaded limit phase conductor;
(3) utilize safety warning tape 4 to move wrap attachment to hoisting point position, when after wrap attachment determination hoisting point position, move and place crash bearer 5 with fixing suspension centre;
(4) adopt the thread-changing mode of the new line of old tape, with first limit phase conductor, the order of rear middle phase conductor carries out wire replacing;
(5) after thread-changing completes, utilize safety warning tape 4 to be moved to by wrap attachment and cross over electric pole place, shelves side, wire is withdrawn from from top phase double pulleies unit 1 and side double pulleies unit 2, wrap attachment is hung down, so far completes thread-changing operation.
Claims (10)
1. a distribution overhead line crosses over thread-changing wrap attachment, it is characterized in that, comprise hoisting bracket and be arranged on the drawing part bottom hoisting bracket, described hoisting bracket comprises top phase double pulleies unit, two side double pulleies unit and telescopic strut, and described top phase double pulleies unit is connected for triangular supports by telescopic strut with two side double pulleies unit.
2. distribution overhead line as claimed in claim 1 crosses over thread-changing wrap attachment, it is characterized in that, described top phase double pulleies unit comprises fixed frame and is symmetricly set on two pulleys in fixed frame, be provided with active blade in the side of fixed frame, be provided with suspension ring on the top of fixed frame, the bilateral symmetry of bottom is provided with U-shaped ring.
3. distribution overhead line as claimed in claim 1 crosses over thread-changing wrap attachment, it is characterized in that, described side double pulleies unit comprises fixed frame and is symmetricly set on two pulleys in fixed frame, be provided with active blade in the side of fixed frame, be provided with U-shaped ring on the top of fixed frame, bottom is provided with suspension ring.
4. distribution overhead line crosses over thread-changing wrap attachment as claimed in claim 2 or claim 3, it is characterized in that, described telescopic strut comprises round steel bar and connects the screw mandrel at round steel bar two ends, and one end of screw mandrel is provided with link, and link is fixedly connected with U-shaped ring by bolt.
5. distribution overhead line as claimed in claim 4 crosses over thread-changing wrap attachment, it is characterized in that, screw mandrel is provided with multiple stop nut.
6. distribution overhead line as claimed in claim 4 crosses over thread-changing wrap attachment, and it is characterized in that, the two ends of described round steel bar are respectively equipped with reinforcing nut, and screw mandrel is connected with round steel bar after running through reinforcing nut.
7. distribution overhead line as claimed in claim 3 crosses over thread-changing wrap attachment, it is characterized in that, also be connected with described telescopic strut in the bottom of two side double pulleies unit, the two ends of telescopic strut are connected by the hold-down nut be arranged on side double pulleies unit fixed frame.
8. distribution overhead line as claimed in claim 3 crosses over thread-changing wrap attachment, and it is characterized in that, described drawing part comprises safety warning tape and crash bearer, and one end of safety warning tape is connected with the suspension ring of side double pulleies unit bottom, and the other end is connected with crash bearer.
9. the distribution overhead line as described in any one of claim 1-8 crosses over a using method for thread-changing wrap attachment, comprises the following steps,
(1) this wrap attachment is winched to electric wire masthead, open the active blade of phase double pulleies unit side, top, phase conductor in the loading of phase double pulleies unit will be pushed up;
(2) open the active blade of two side double pulleies unit sides successively, side double pulleies unit is loaded limit phase conductor;
(3) utilize security warning Tape movement wrap attachment to hoisting point position, when after wrap attachment determination hoisting point position, move and place crash bearer with fixing suspension centre;
(4) adopt the thread-changing mode of the new line of old tape, with first limit phase conductor, the order of rear middle phase conductor carries out wire replacing;
(5) after thread-changing completes, utilize safety warning tape to be moved to by wrap attachment and cross over electric pole place, shelves side, wire is withdrawn from from top phase double pulleies unit and side double pulleies unit, wrap attachment is hung down.
10. distribution overhead line as claimed in claim 9 crosses over the using method of thread-changing wrap attachment, it is characterized in that, in step (2), by the position regulating the length of telescopic strut to adjust two side double pulleies unit, load limit phase conductor to make two side double pulleies unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510673428.7A CN105162043B (en) | 2015-10-15 | 2015-10-15 | Distribution overhead line crosses over thread-changing wrap attachment and its application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510673428.7A CN105162043B (en) | 2015-10-15 | 2015-10-15 | Distribution overhead line crosses over thread-changing wrap attachment and its application |
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| Publication Number | Publication Date |
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| CN105162043A true CN105162043A (en) | 2015-12-16 |
| CN105162043B CN105162043B (en) | 2017-11-14 |
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| CN112421481A (en) * | 2020-10-26 | 2021-02-26 | 国网新疆电力有限公司吐鲁番供电公司 | Tackle device for treating foreign matters in electrified manner |
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| Publication number | Publication date |
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| CN105162043B (en) | 2017-11-14 |
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