{
  "abstract": "A tool for replacing a bushing and seal of an inlet ball valve disc pivot and a method thereof, relating to the technical field of installation and maintenance of hydropower station equipment. The tool for replacing the bushing and seal of the inlet ball valve disc pivot comprises a support frame, a driving ring, a support shaft, a first support assembly and a second support assembly; the support frame includes a first ring, a second ring provided in parallel, and a plurality of connecting rods connected between the first ring and the second ring; the first ring is used for connecting to the ball valve body; the driving ring is provided between the first ring and the second ring in an adjustable position; the driving ring is used for detachable connection with the bushing; the support shaft is used for coaxial connection with the pivot.",
  "assignees": [
    "HUANENG LANCANG RIVER HYDROPOWER INC",
    "YUNNAN UNITED POWER DEV CO LTD"
  ],
  "authors": [
    "DENG YUCHEN",
    "DING WEI",
    "GU DINGHONG",
    "GUO HONGE",
    "QIN WENJUN",
    "WANG CHENGKAI",
    "WANG JI",
    "WANG MIN",
    "WU SHIHU",
    "XU BO"
  ],
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  "source_date": "2026-03-12",
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  "title": "Tool for replacing bushing and seal of inlet ball valve disc pivot and method thereof",
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}