| 摘要 |
FIELD: electrified railways. ^ SUBSTANCE: invention relates to anchor section of chain contact spring suspension of modern high-speed railway and transfer support unit of such anchor section. Anchor section includes anchor spans, transfer and intermediate spans, middle anchorage, contact wire and carrying cable interacting through droppers, and support structure in form of intermediate and transfer spring and springless support units furnished with brackets and locks. Cable of middle anchorage of contact wire is 8.5-10 m long, being installed in interdropper space between springless droppers arranged at distance of 8.5-10m. Anchorages on end of section are made separate for carrying cable and contact wire with tension transmission coefficient to 3:1 and distance in vertical in between being equal to 1.15-2.2 m. brackets of transfer support units are installed at distance of 1.2-2.0 m from each other. Length of transfer span is 45-70 m. invention reduces labor input in maintenance of railway contact system at its operation at temperatures within minus 50°C and plus 95°C, at preservation of high operating characteristics of suspension, and increases service life of contact wire owing to reduction of its wear caused by action of current collector. ^ EFFECT: reduced labor input in maintenance, increased service life of contact spring suspension. ^ 14 cl, 1 tbl, 6 dwg |
