CN201408944Y - Flexible bearing rope for 10 kV by-pass cables - Google Patents
Flexible bearing rope for 10 kV by-pass cables Download PDFInfo
- Publication number
- CN201408944Y CN201408944Y CN2009200723397U CN200920072339U CN201408944Y CN 201408944 Y CN201408944 Y CN 201408944Y CN 2009200723397 U CN2009200723397 U CN 2009200723397U CN 200920072339 U CN200920072339 U CN 200920072339U CN 201408944 Y CN201408944 Y CN 201408944Y
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- CN
- China
- Prior art keywords
- bearing rope
- rope body
- rotary connector
- bearing
- bypass cable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a flexible bearing rope for 10 kV by-pass cables, which comprises a bearing rope body, a first rotating connector and a second rotating connector which are respectively connected on two ends of the bearing body, wherein the bearing rope body is a three-layer structure from inner to external, a section of sleeve is respectively sleeved on the outermost layers near two ends of the bearing rope body, and two ends of the bearing rope body are respectively provided with a bearing rope nut. The bearing rope body in the utility model has the characteristics that the fracture strength is high, the working load is 1500 kg, the abrasion resistance and the extending rate are small (less than 5%) and the like, the first rotating connector and the second rotating connectorcan be reliably connected with the bearing rope body, and simultaneously pulleys can be guaranteed to smoothly pass through the bearing rope body and the connectors, and the strength is high, therebythe safety and the reliability of use are guaranteed.
Description
Technical field
The utility model relates to the distribution line live working instrument in a kind of electric power system, relates in particular to the flexible bearing rope of a kind of 10kV bypass cable.
Background technology
10kV circuit bypass cable working system is current domestic advanced person's a operational method, is the set of various live line working modes, and it can be divided into several " modules " to the live line working mode; Both can be in the some strain insulator shelves on 10 kilovolts of overhead distributions (about 5-10 shelves), to all the user's maintenance power supplies in the strain insulator shelves, on overhead distribution, carry out conventional interruption maintenance work, can keep the contact on the electric system simultaneously again.
When setting up the three-phase bypass cable, rope should be able to bear the weight of bypass cable, and the coaster of carrying bypass cable is passed through on rope smoothly.In order to carry the own wt of bypass cable, do not cause the rope of carrying behind the bypass cable can not pass through intermediate support smoothly again owing to elongation causes bypass cable greatly, do not make it owing to elongation causes distance to the ground not enough greatly yet, therefore, this rope must have specific (special) requirements such as intensity height, expansion and contraction be little, and now general insulation ropes expansion and contraction is about 20～30%, and require the expansion and contraction of the bearing rope of carrying bypass cable to be not more than 5%, therefore, existing insulation ropes can not satisfy as the requirement of bypass cable with bearing rope.
The utility model content
In order to overcome the deficiency that above-mentioned prior art exists, the utility model aims to provide a kind of intensity height, the flexible bearing rope of 10kV bypass cable that expansion and contraction is little, can carry the own wt of bypass cable, can make bypass cable pass through intermediate support smoothly again, do not make it owing to elongation causes distance to the ground not enough greatly yet, satisfy the security needs of distribution line live working.
The flexible bearing rope of a kind of 10kV bypass cable described in the utility model, comprise the bearing rope body, be connected to first rotary connector and second rotary connector at these bearing rope body two ends, it comprises the bearing rope body, is connected to first rotary connector and second rotary connector at these bearing rope body two ends
Described bearing rope body is a three-decker from the inside to the outside, be arranged with one section sleeve pipe near on the outermost layer at bearing rope body two ends respectively, and the two ends of described bearing rope body is respectively equipped with a bearing rope nut;
Described first rotary connector comprises that first anti-twisting equipment, two are separately positioned on the first hinge type bolt at these first anti-twisting equipment two ends, are set in first rubber spring and the first connector nut on the described first hinge type bolt successively respectively;
Described second rotary connector comprises second anti-twisting equipment, is arranged on the second hinge type bolt of this second anti-twisting equipment, one end, is set in second rubber spring and the second connector nut on this second hinge type bolt successively.
Above-mentioned 10kV bypass cable with flexible bearing rope in, the material of described bearing rope body is an aramid fiber.
Above-mentioned 10kV bypass cable with flexible bearing rope in, described sleeve pipe adopts the chinlon filament braiding to form.
Because having adopted above-mentioned technical solution, the bearing rope body in the utility model to have fracture strength height, operating load is 1500kg, wear-resistant and expansion and contraction is little characteristics such as (less than 5%); First rotary connector can reliably be connected with the bearing rope body with second rotary connector, and simultaneously can guarantee that pulley passes through smoothly on bearing rope body and connector, and the intensity height, thus guarantee to use safe and reliable.
Description of drawings
Fig. 1 is the structural representation of a kind of 10kV bypass cable of the utility model with flexible bearing rope;
Fig. 2 is the A-A direction view of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing the utility model is elaborated.
Referring to Fig. 1, Fig. 2, the utility model, it is the flexible bearing rope of a kind of 10kV bypass cable, comprise bearing rope body 1, be connected to first rotary connector 2 and second rotary connector 3 at these bearing rope body 1 two ends, wherein, bearing rope body 1 is a three-decker from the inside to the outside, be arranged with one section sleeve pipe 11 near on the outermost layer at bearing rope body 1 two ends respectively, and the two ends of bearing rope body 1 is respectively equipped with a bearing rope nut 12.
First rotary connector 2 comprises that first anti-twisting equipment 21, two are separately positioned on the first hinge type bolt 22 at these first anti-twisting equipment, 21 two ends, are set in first rubber spring 23 and the first connector nut 24 on the described first hinge type bolt 22 successively respectively; Second rotary connector 3 comprises second anti-twisting equipment 31, is arranged on the second hinge type bolt 32 of these second anti-twisting equipment, 31 1 ends, is set in second rubber spring 33 and the second connector nut 34 on this second hinge type bolt 32 successively.
In the utility model, bearing rope body 1 must have intensity height (the maximum Fracture Force of φ 12mm bearing rope can reach 4500kg), operating load is the little characteristics such as (less than 5%) of 1500kg, expansion and contraction, therefore its material is defined as the aramid fiber (KEVLAR29) that E.I.Du Pont Company produces, the fracture strength height of this kind material, its individual thread rupture strength reaches 36.8kg, and 399 KEVLAR29 form the rope base material and can satisfy requirement of strength; The sleeve pipe 11 of bearing rope body 1 adopts homemade dipping chinlon filament cover to knit and forms, thereby reaches wear-resisting, under the 23.3kg operating load, does not have wearing and tearing through the speed of per second 3 times with 600 ropes.
In the utility model in the manufacture process of bearing rope body 1, traditional strand system and preparation method have been changed, knit with tow collator, disk mantle and to make bearing rope body 1, thereby reduced the expansion and contraction of rope, guaranteed that expansion and contraction is lower than 5%, simultaneously serviceability temperature height (120 ℃), in the elongation test, elongation less than 2% when reaching nominal load, in disrumpent feelings test, this bearing rope body 1 expansion and contraction is 4.2%.The utility model rope in repeated detection is disrumpent feelings to be reached more than the 6000kg, and the rotary connector connecting portion is disrumpent feelings to reach 4900kg, can meet the demands substantially.
The diameter of bearing rope body 1 is 12mm, the external diameter of first rotary connector 2 and second rotary connector 3 is 20mm, for guaranteeing that bearing rope body 1 is connected with first rotary connector 2, second the reliable of rotary connector 3, by test nearly 100 times, adopt special-purpose high strength structure glue to carry out bonding to bearing rope body 1 and first rotary connector 2, second rotary connector 3, the characteristics of this adhesives be firm, pliable and tough, shock-resistant, intensity is high, reliable in quality is not affected by bonding material physical property simultaneously.Through detection of broken intensity repeatedly is 4700kg, satisfies construction requirement, for leaving certain leeway, and proof strength, being decided to be rupture pull force is 4500kg.In addition, for guarantee that pulley passes through smoothly on bearing rope body 1 and first rotary connector 2, second rotary connector 3, first rotary connector 2, second rotary connector 3 adopt the common structural alloy steel 65Mn after the modifier treatment, yield strength reaches 735Mpa, thus guarantee to use safe and reliable.
The utility model spins silkworm with general insulation rope 12mm and compares, and it is big 4 times that its rupture strength is wanted, and compares with high strength 12mm insulation rope, and it is big 2 times that its rupture strength is wanted; In addition, domestic general insulation ropes expansion and contraction is about 20～30%, and the expansion and contraction of the flexible bearing rope of requirement carrying bypass cable is not more than about 5%, so the utility model can satisfy the security needs of distribution line live working.
Below embodiment has been described in detail the utility model in conjunction with the accompanying drawings, and those skilled in the art can make the many variations example to the utility model according to the above description.Thereby some details among the embodiment should not constitute qualification of the present utility model, and the scope that the utility model will define with appended claims is as protection range of the present utility model.
Claims (3)
1. the flexible bearing rope of 10kV bypass cable is characterized in that, it comprises the bearing rope body, is connected to first rotary connector and second rotary connector at these bearing rope body two ends,
Described bearing rope body is a three-decker from the inside to the outside, be arranged with one section sleeve pipe near on the outermost layer at bearing rope body two ends respectively, and the two ends of described bearing rope body is respectively equipped with a bearing rope nut;
Described first rotary connector comprises that first anti-twisting equipment, two are separately positioned on the first hinge type bolt at these first anti-twisting equipment two ends, are set in first rubber spring and the first connector nut on the described first hinge type bolt successively respectively;
Described second rotary connector comprises second anti-twisting equipment, is arranged on the second hinge type bolt of this second anti-twisting equipment, one end, is set in second rubber spring and the second connector nut on this second hinge type bolt successively.
2. the flexible bearing rope of 10kV bypass cable according to claim 1 is characterized in that the material of described bearing rope body is an aramid fiber.
3. the flexible bearing rope of 10kV bypass cable according to claim 1 is characterized in that, described sleeve pipe adopts the chinlon filament braiding to form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200723397U CN201408944Y (en) | 2009-05-15 | 2009-05-15 | Flexible bearing rope for 10 kV by-pass cables |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200723397U CN201408944Y (en) | 2009-05-15 | 2009-05-15 | Flexible bearing rope for 10 kV by-pass cables |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201408944Y true CN201408944Y (en) | 2010-02-17 |
Family
ID=41679891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200723397U Expired - Lifetime CN201408944Y (en) | 2009-05-15 | 2009-05-15 | Flexible bearing rope for 10 kV by-pass cables |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201408944Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103545752A (en) * | 2013-10-16 | 2014-01-29 | 国家电网公司 | Soft insulation pull rod for 800kV ultrahigh-voltage line and manufacturing method of insulation rope |
| CN104868398A (en) * | 2015-05-22 | 2015-08-26 | 江苏省电力公司常州供电公司 | 10KV bypass cable overhead laying street crossing apparatus |
-
2009
- 2009-05-15 CN CN2009200723397U patent/CN201408944Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103545752A (en) * | 2013-10-16 | 2014-01-29 | 国家电网公司 | Soft insulation pull rod for 800kV ultrahigh-voltage line and manufacturing method of insulation rope |
| CN104868398A (en) * | 2015-05-22 | 2015-08-26 | 江苏省电力公司常州供电公司 | 10KV bypass cable overhead laying street crossing apparatus |
| CN104868398B (en) * | 2015-05-22 | 2017-10-17 | 国网江苏省电力公司常州供电公司 | The built on stilts laying street crossing device of 10KV bypass cables |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100217 |