Tension balancer for overhead line

An overhead line and balancer technology, which is used in overhead lines, overhead line/cable equipment, adjusting/maintaining mechanical tension, etc., can solve problems such as tension balance damage, bearing damage, poor dust performance, etc., to achieve good durability, Avoid the effects of tension imbalance

Inactive Publication Date: 2008-12-24
西村生
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, in the above-mentioned pulley-type tension balancer for overhead use, damage to the bearing of the rotating shaft portion and performance failure due to dust generation may occur, and periodic maintenance to detect cable disconnec

Method used

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  • Tension balancer for overhead line
  • Tension balancer for overhead line
  • Tension balancer for overhead line

Examples

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Embodiment Construction

[0044] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0045] The tension balancer for trolley wires according to the present embodiment has a tension conversion pulley. Generally, the tension conversion pulley has a first pulley part having a helical first cable guide groove with a constant diameter and a first pulley part with a variable diameter in parallel. The second pulley part of the second cable guide groove is helically threaded, and the helical direction of the guide groove is opposite. In addition, a first cable is wound along the first cable guide groove, one end of which is fixed to a part of the first cable guide groove, and the other end is connected to the side of the overhead wire, and a second cable along the above-mentioned The guide groove is wound with a second cable whose one end is fixed to a part of the second cable guide groove and whose other end is attached to the axially moving member. In additi...

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PUM

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Abstract

The present invention provides a tensioning balancer for overhead wire, which can absorb the expansion of a overhead wire and hold the tensioning of the overhead wire to a certainty, can be realized only by maintaining timely, has good permanent stability, and can avoid generating tension force from unbalance caused by external causes. The tensioning balancer for overhead wire comprises: a tension force transformation pulley (2) forming with a first cable leading trough (6) and a second cable leading trough (7) with changeable diameter, a first cable (10) coiled in the first cable leading trough (6), a second cable (11) coiled in the second cable leading trough (7), and a coil spring (4) applying force on a axial displacement component to the opposite side of one end of the second cable (11), expansion amount of the overhead wire is absorbed by the expending action of the coil spring (4) with the rotation of the tension force transformation pulley (2).

Description

technical field [0001] The present invention relates to a tension balancer for overhead wires for maintaining constant tension of overhead wires erected in the air. Background technique [0002] In overhead lines, especially tram lines (hanger overhead lines, auxiliary hanger overhead lines, tramlines), stretching and creep due to temperature changes, elastic elongation due to tramline wear, and long-term aging changes The resulting tilt of the support, etc., will affect the tension of the relaxation. Therefore, it is necessary to keep the tension of the trolley wire constant, and it is required to automatically adjust the tension and make it maintenance-free. [0003] Therefore, conventionally, tension balancers for trolley wires have been proposed in various systems, such as a pulley type, a spring type, a gas type, and a hydraulic type. Among them, in the pulley type, cables are guided by pulleys via insulating porcelain bottles connected to overhead wires, and heavy ob...

Claims

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Application Information

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IPC IPC(8): H02G7/02B60M1/12
CPCB60M1/26H02G1/04H02G7/02
Inventor 西村生西村壮司
Owner 西村生
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