| 摘要 |
FIELD: electrified railways. ^ SUBSTANCE: proposed railway contact system anchoring device includes support with anchor brackets of carrier cable and contact wire and pulley-block automatic tension regulator of contact wire length at semicompensated anchoring of contact system or pulley-block-type automatic tension regulator of contact wire and pulley-block-type automatic tension regulator of carrier cable at compensated anchoring of contact system, each being connected with weights at one side. At other side, pulley-block-type automatic tension regulator of contact wire is connected with contact wire, and pulley-block-type automatic tension regulator of carrier cable is connected with carrier cable. Position of weights of automatic tension regulator or regulators corresponds to values found from curve characterizing change of position of weights within certain temperature limits depending on distance from middle anchoring device. Pulley-block-type automatic tension regulator of contact wire or pulley-block-type automatic tension regulator of contact wire and pulley-block-type automatic tension regulator of carrier cable are made with tension transfer ratio equal to 3, with range of shifting of twin strings of weights not less than 6 m. Anchor bracket of contact wire is installed at height of 7.2-7.5 m, anchor bracket of carrier cable is installed at height equal to 8.5-9.0 m, and distance between axles of blocks of tension regulator or regulators and position of weights of tension regulator or regulators corresponds to values found curve characterizing changes of position of weights and distance between axles of blocks of regulators within temperature limits from -50°C to +95°C< depending on distance from middle anchoring device. ^ EFFECT: possibility of provision of maximum compensation of temperature displacement of contact system wires and cables within wide temperature limits without seasonal adjustments. ^ 4 cl, 6 dwg |
