US 2026/0070199 A1Published application

Tool for replacing bushing and seal of inlet ball valve disc pivot and method thereof

AssigneesYunnan United Power Development Co., Ltd., Huaneng Lancang River Hydropower Inc.

InventorsWenjun QIN, Dinghong GU, Ji WANG, Shihu WU, Honge GUO, Chengkai WANG, Yuchen DENG, Bo XU, Min WANG, Wei DING

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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.

Claims10

Dependent claims

A tool for replacing a bushing and seal of an inlet ball valve disc pivot comprising:

a support frame comprising a first ring, a second ring arranged in parallel to each other, and a plurality of connecting rods connected between the first ring and the second ring, wherein the first ring is used for connecting to the ball valve body and is coaxially arranged with the pivot;
a support shaft used for coaxial connection with the pivot;
a driving ring arranged between the first ring and the second ring in an adjustable position and sleeved on the support shaft, wherein the driving ring is used for detachable connection with the bushing;
a first support assembly arranged on a side of the connecting rod close to the second ring and has an adjustable length for supporting the support shaft;
and
a second support assembly arranged on a side of the connecting rod close to the first ring and has an adjustable length for supporting the support shaft.

3 more elements

Dependencies are inferred from the claim text.