CN109149447B - Traction wheel type pulley for power cable - Google Patents
Traction wheel type pulley for power cable Download PDFInfo
- Publication number
- CN109149447B CN109149447B CN201811111580.6A CN201811111580A CN109149447B CN 109149447 B CN109149447 B CN 109149447B CN 201811111580 A CN201811111580 A CN 201811111580A CN 109149447 B CN109149447 B CN 109149447B
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- China
- Prior art keywords
- cable
- pulley
- calandria
- drum
- wheel type
- Prior art date
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- 239000000463 material Substances 0.000 claims abstract description 9
- 238000005461 lubrication Methods 0.000 claims description 5
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 3
- 239000003063 flame retardant Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 238000005096 rolling process Methods 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 238000011161 development Methods 0.000 description 5
- 230000018109 developmental process Effects 0.000 description 5
- 238000007689 inspection Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Images
Classifications
-
- 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
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
- H02G1/08—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
- H02G1/088—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling using pulling devices movable inside conduits
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- Pulleys (AREA)
Abstract
The invention provides a traction wheel type pulley for a power cable, which has light dead weight and is small and exquisite, and can pass through a calandria in the cable without blocking and increasing the load of the calandria by utilizing the standard difference between the diameter of the cable and the diameter of the calandria; the cable rack can be easily installed and distributed in a cable, so that when the cable is arranged in an auxiliary mode, the cable jacket cannot be damaged by friction, the inner wall of the calandria changes violent sliding friction into rolling friction, and the damage to the calandria is basically eliminated by the aid of the material of the drum type pulley. The power cable traction wheel type pulley is characterized in that: the wheel pulleys are distributed in the cable at intervals, and are combined by the circular arc-shaped upper cover plate in the wheel pulleys and the lower pulley assembly and fixed in the cable.
Description
Technical Field
The invention relates to a power cable traction tackle.
Background
Along with the rapid development of the economy of China, the scale of a city as a development mark is gradually enlarged, the requirement of modern city functions on power supply is also continuously improved, a plurality of obstacles are brought to the crossing of the traditional overhead power transmission line at the present that the buildings of the city are continuously increased, the arrangement of a line corridor and the coordination of the city development are particularly noticed in the rapidly-expanded urban area, and the situation that the city is quickly sunk into the heavy enclosure of the city building is avoided. For overhead transmission lines that have been sunk into urban areas, it is desirable to incorporate a retrofit into a green belt or underground cable line.
Most of the existing underground cables are arranged in a calandria channel, the calandria in the calandria channel is divided into a metal pipe and a plastic pipe, the anti-settling capacity of the calandria buried underground is weak, and local extrusion is easy to bend or shift. When the cable is arranged in an auxiliary mode, an electric worker firstly opens a well cover on the electric inspection well, the cable with the well-made draw hook is placed in the pipe discharging port, and then the electric traction machine pulls the cable from the pipe discharging port through the other electric inspection well. In this way, when the cable passes through, the cable jacket still can produce violent sliding friction with the inner wall of the calandria, especially in the section where the calandria bends or shifts, each pass through has certain damage to the cable and the calandria, so that the passing speed is extremely slow, and the cable and the calandria can be scrapped due to multiple passes.
Therefore, the problem is solved and the service life of the cable and the calandria is prolonged by the specific development.
Disclosure of Invention
Aiming at the problems, the invention provides a traction wheel type pulley for a power cable, which has light self weight and small size, and can pass through a calandria in the cable without blocking and increasing the load of the calandria by utilizing the standard difference between the diameter of the cable and the diameter of the calandria; the cable rack can be easily installed and distributed in a cable, so that when the cable is arranged in an auxiliary mode, the cable jacket cannot be damaged by friction, the inner wall of the calandria changes violent sliding friction into rolling friction, and the damage to the calandria is basically eliminated by the aid of the material of the drum type pulley.
The invention is realized by the following steps: the power cable traction wheel type pulley is characterized in that: the wheel type pulleys are distributed in the cable at intervals, are combined by an arc-shaped upper cover plate in the wheel type pulleys and a lower pulley assembly and are fixed in the cable;
in the lower pulley assembly, pulley supports are fixed in two ends of a bottom plate of the lower pulley, and drum pulleys are arranged in the pulley supports and are positioned by clamp springs; the arc of the bottom plate of the lower pulley exceeds 220 degrees, and the drum pulleys are symmetrically arranged.
The material of the drum pulley comprises a high-lubrication thermal-stability flame-retardant material; the rim of the drum-type pulley is drum-shaped.
The invention has the following functions:
1. the drum pulley in the pulley assembly at the lower part has a diameter exceeding that of the cable, and the drum pulley with a large diameter is very suitable for being used in a metal calandria with poor inner wall smoothness, is not easy to be blocked and is convenient to pass through the calandria.
2. The cable has light dead weight and is small, and the standard difference between the diameter of the cable and the diameter of the calandria can be utilized to ensure that the cable is arranged in the cable and passes through the calandria without blocking and increasing the load of the calandria.
3. The cable sheath can be easily installed and distributed in a cable, only 4 screws need to be screwed in the installation process, and the cable sheath can not be damaged by friction when the cable is arranged in an auxiliary mode.
4. The drum type pulley contacted with the inner wall of the calandria is in a drum shape, so that the contact range can be enlarged, the pressure intensity of the inner wall of the calandria is reduced, and in addition, the material of the drum type pulley is adopted, the original violent sliding friction of the inner wall of the calandria is changed into the current high-lubrication rolling friction, so that the damage to the calandria is basically eliminated, and the calandria is not damaged after passing through for many times.
⒌ its large-diameter drum pulley assembly is symmetrically arranged over the external diameter of cable, so forming pulley able to contact with inner wall of calandria in universal mode to make cable play unique role when passing through the bending or displacement section of calandria.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a perspective view of a power cable traction wheel block of the present invention.
Fig. 2 is a front view of the electric power cable traction wheel block of the present invention.
In the figure: 1. the pulley comprises a wheel pulley, 2 cables, 3 drum pulleys, 4 pulley supports, 5 upper cover plates, 6 lower pulley assemblies and 7 clamp springs.
Detailed Description
As shown in the figure, the wheel type pulley 1 is distributed in the cable 2 at intervals, is composed of an arc-shaped upper cover plate 5 and a lower pulley assembly 6 in the wheel type pulley 1, and is fixed in the cable 2 by screws, so that the large-diameter drum type pulley assembly which is symmetrically arranged and exceeds the outer diameter of the cable forms a pulley which can be in universal contact with the inner wall of the calandria, and the cable can play a unique role when passing through a section where the calandria is bent or displaced.
The pulley supports 4 of the lower pulley assembly 6 are fixed, preferably anchored, in both ends of the lower pulley bottom plate, so that the elasticity of the lower pulley assembly 6 is not affected; the drum type pulley 3 is arranged in the pulley support 4 and is positioned by a clamp spring 7; the arc of the bottom plate of the lower pulley exceeds 220 degrees, and the drum pulleys 3 are symmetrically arranged.
The material of the drum pulley 3 comprises a high-lubrication thermal-stability flame-retardant material; the rim of the drum pulley 3 is drum-shaped.
When the cable is arranged for operation, an electric worker firstly opens a well cover on an electric inspection well, the cable with the well-made draw hook is placed in a pipe arranging port, then the electric traction machine pulls the cable from the pipe arranging port through another electric inspection well, and meanwhile, the wheel type pulleys are continuously arranged to be distributed in the cable at intervals, so that the friction damage of a cable jacket is completely eliminated, the original violent sliding friction of the inner wall of the pipe arranging port is changed into the existing high-lubrication rolling friction, the damage to the pipe arranging port is basically eliminated, and the pipe arranging port is not damaged after being passed through for multiple times.
The structure of the present invention is not limited to the form described in the embodiment, and further developments made by those skilled in the art according to the present invention fall within the protection scope of the present invention.
The traction wheel type pulley for the power cable is very suitable for being used in a narrow pipe arranging space, and is cheap, flexible and good in effect.
Claims (3)
1. A power cable traction wheel type pulley is characterized in that wheel type pulleys (1) are distributed in a cable (2) at intervals, 2 drum type pulleys (3) in a pulley assembly (6) are symmetrically arranged at two ends, the diameter of each drum type pulley (3) exceeds that of the cable, and the drum-shaped edge of each drum type pulley (3) is in contact with the inner wall of a calandria; the method is characterized in that: the wheel type pulley (1) is composed of an arc-shaped upper cover plate (5) and a lower pulley assembly (6) and is fixed in a cable, and a gap is reserved between the arc-shaped upper cover plate (5) and the lower pulley assembly (6) after the fixation;
lower part coaster assembly (6), the circular arc of lower part coaster bottom plate surpasss 220, pulley support (4) are fixed in the both ends of lower part coaster bottom plate, drum-type pulley (3) are established in pulley support (4), are fixed a position by jump ring (7).
2. The power cable traction wheel type tackle as claimed in claim 1, wherein: the material of the drum pulley (3) comprises a high-lubrication thermal-stability flame-retardant material.
3. The power cable traction wheel type tackle as claimed in claim 1, wherein: the drum type pulley (3) and the large-diameter drum type pulley (3) are very suitable for being used in a metal calandria with poor inner wall smoothness, are not easy to block and increase the load of the calandria, and can be fixed in the cable (2) by utilizing the standard difference between the diameter of the cable and the diameter of the calandria and then penetrate through the calandria.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811111580.6A CN109149447B (en) | 2018-09-24 | 2018-09-24 | Traction wheel type pulley for power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811111580.6A CN109149447B (en) | 2018-09-24 | 2018-09-24 | Traction wheel type pulley for power cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109149447A CN109149447A (en) | 2019-01-04 |
| CN109149447B true CN109149447B (en) | 2021-01-15 |
Family
ID=64823356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811111580.6A Active CN109149447B (en) | 2018-09-24 | 2018-09-24 | Traction wheel type pulley for power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109149447B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113629589A (en) * | 2021-09-24 | 2021-11-09 | 温州华电实业有限公司 | Waterproof leak protection of cable duct is supplementary to be laid equipment |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006256526A (en) * | 2005-03-18 | 2006-09-28 | Pekku Technical:Kk | In-pipe traveling wheel structure |
| AT509158B1 (en) * | 2009-12-02 | 2011-09-15 | Herbert Mock | DEVICE FOR REMOVING OR REPLACING CABLES |
| CN202183572U (en) * | 2011-08-02 | 2012-04-04 | 李刚 | Three-wheel corner cable pulley |
| CN204068020U (en) * | 2014-05-15 | 2014-12-31 | 国家电网公司 | Cable tube coaster |
| CN205335757U (en) * | 2016-02-05 | 2016-06-22 | 国网浙江新昌县供电公司 | Cable channel patrols and examines robot |
| CN206211414U (en) * | 2016-12-06 | 2017-05-31 | 国网浙江慈溪市供电公司 | A kind of pulley block device |
| CN206506231U (en) * | 2017-03-13 | 2017-09-19 | 上海凯波水下工程有限公司 | A kind of cable draws damping device over long distances |
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2018
- 2018-09-24 CN CN201811111580.6A patent/CN109149447B/en active Active
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| Publication number | Publication date |
|---|---|
| CN109149447A (en) | 2019-01-04 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20240530 Address after: No. 107 Baimanxi Road, Nanyu Town, Minhou County, Fuzhou City, Fujian Province, 350100 Patentee after: WEIXING CO.,LTD. Country or region after: China Address before: Room 1001, 24 Lane 165, Caihong North Road, Yinzhou District, Ningbo City, Zhejiang Province Patentee before: Zhang Ruowei Country or region before: China |
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| TR01 | Transfer of patent right |