Overhauling method for underground cable of power system

Overhauling method for underground cable of power system

  • CN 110,212,445 B
  • Filed: 05/08/2019
  • Issued: 08/13/2021
  • Est. Priority Date: 05/08/2019
  • Status: Active Grant
First Claim
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1. An overhauling method for an underground cable of an electric power system is characterized by comprising the following steps:

  • transferring the supporting mechanism (4000) and a drainage pump (1000) placed on the supporting mechanism (4000) to a cable well to be overhauled;

    adjusting the supporting mechanism (4000) to a state of avoiding the movement of the drainage pump (1000);

    lowering a drainage pump (1000) to a preset underground position of the cable;

    locking the drain pump (1000) in a preset position;

    pumping out accumulated water in the cable well by using a drainage pump (1000);

    releasing the locking state of the drainage pump (1000) at the preset position;

    lifting the drain pump (1000) to the highest position and adjusting the supporting mechanism (4000) to a state of supporting the drain pump (1000);

    lowering the drainage pump (1000) to the supporting mechanism (4000);

    removing the drain pump (1000);

    the self-adaptive adjustment supporting mechanism (4000) is used for adjusting the position of the drainage pump (1000) to avoid the movement of the drainage pump (1000) or support the drainage pump (1000);

    the state of the supporting mechanism (4000) is adjusted in a self-adaptive way through the height adjustment of the drainage pump (1000);

    the supporting mechanism (4000) is adjusted in a self-adaptive mode through the position adjustment of the drainage pump (1000) to move along the horizontal direction, so that the drainage pump (1000) is avoided to move or the drainage pump (1000) is supported;

    the roller (2000) is rotatably arranged at the upper part of the frame (11000);

    the lifting rope (3000) is wound on the periphery of the roller (2000) and is used for being connected with the drainage pump (1000), and the drainage pump (1000) can be driven to move up and down by rotating the roller (2000);

    the supporting mechanism (4000) is movably arranged at the bottom of the rack (11000), and the adjusting mechanism is used for adjusting the supporting mechanism (4000) to be in an avoidance position and a working position alternately;

    the triggering mechanism is used for triggering the adjusting mechanism to adjust the state of the supporting mechanism (4000) along with the lifting of the drainage pump (1000);

    the supporting mechanism (4000) is installed on the rack (11000) in a sliding mode along the horizontal direction, and the adjusting mechanism adjusts the supporting mechanism (4000) to slide horizontally;

    the adjusting mechanism comprises a reversing assembly (5000), a transmission assembly (6000) and a locking assembly (7000), the reversing assembly (5000) is connected with the triggering mechanism, the transmission assembly (6000) is connected with the supporting mechanism (4000), the reversing assembly (5000) is used for adjusting acting force applied by the triggering mechanism in the vertical direction to be in the horizontal direction and applied to the transmission assembly (6000), and the transmission assembly (6000) is used for adjusting the supporting mechanism (4000) to switch between an avoiding position and a working position;

    the locking assembly (7000) is arranged between the reversing assembly (5000) and the transmission assembly (6000), and the locking assembly (7000) is used for locking the current state of the bearing mechanism (4000) in a gap formed by two adjacent triggering actions of the triggering mechanism and unlocking the previous state of the bearing mechanism (4000) in the process of triggering action of the triggering mechanism;

    the reversing assembly (5000) is composed of reversing rod pieces (5100) which are vertically arranged, the middle parts of the reversing rod pieces (5100) are rotatably installed on the rack (11000), one end of each reversing rod piece (5100) is movably connected with the triggering mechanism, the other end of each reversing rod piece (5100) is movably connected with the transmission assembly (6000), and the reversing rod pieces (5100) drive the transmission assembly (6000) to adjust the supporting mechanism (4000) to switch between the avoidance position and the working position when the triggering mechanism is triggered;

    the transmission assembly (6000) comprises a transmission rod piece (6100) and a connecting piece (6200), the transmission rod piece (6100) is installed on the rack (11000) in a sliding mode along the horizontal direction, the transmission rod piece (6100) is connected with the connecting piece (6200), the connecting piece (6200) is connected with the supporting mechanism (4000), and the transmission rod piece (6100) is used for adjusting the supporting mechanism (4000) to slide along the horizontal direction through the connecting piece (6200) when the triggering mechanism is triggered;

    a locking assembly (7000) for locking the position of the drive link (6100) when the racking mechanism (4000) is moved into position;

    the adjusting mechanism further comprises a reset component (8000), the reset component (8000) is connected with a transmission rod piece (6100), the transmission rod piece (6100) is composed of a driving rod (6110) and a driven rod (6120) which are arranged along the length direction of the rod, and the driving rod (6110) is connected with the reversing component (5000);

    the driving rod (6110), the driven rod (6120), the reset assembly (8000) and the locking assembly (7000) are in two states, one of which is that;

    when the driving rod (6110) moves along the rod length direction and pushes the driven rod (6120) to adjust the bearing mechanism (4000) to switch to the avoidance position, the locking assembly (7000) locks the driven rod (6120) to keep the bearing mechanism (4000) at the avoidance position;

    the second is as follows;

    the driving rod (6110) moves along the rod length direction, the locking assembly (7000) is triggered to unlock, the reset assembly (8000) drives the driven rod (6120) to reset, and the bearing mechanism (4000) is switched to a working position.

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