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Vertical hydraulic generator rotor hoisting auxiliary device and hoisting method

A technology for hydroelectric generators and auxiliary devices, which is applied in the manufacture of stator/rotor bodies, transportation and packaging, and load hanging components, etc., which can solve problems such as low operating efficiency and inconvenient operation, and reduce the number of workers and avoid accidents. The effect of bumping and improving hoisting efficiency

Active Publication Date: 2020-10-20
STATE GRID ZHEJIANG ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the operation of lifting out or reinstalling the rotor of the vertical hydro-generator into the stator machine pit requires a large number of staff to work together, which is inconvenient to operate and low in efficiency.

Method used

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  • Vertical hydraulic generator rotor hoisting auxiliary device and hoisting method
  • Vertical hydraulic generator rotor hoisting auxiliary device and hoisting method
  • Vertical hydraulic generator rotor hoisting auxiliary device and hoisting method

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0048] Specific embodiment one: such as figure 1 , figure 2 As shown, a vertical hydraulic generator rotor hoisting auxiliary device includes an annular mounting piece 1, a plurality of glass plates arranged around the outer side of the annular mounting piece 2, a connecting piece 3 connecting the glass plate and the annular mounting piece, and The magnets 4 on the annular mounting member and the laser rangefinders 5 arranged on the glass plate are corresponding to each other. The glass plate is perpendicular to the axis of the annular mounting member. An arc reference line 6 is provided on the glass plate. The center of the arc-shaped reference line falls on the axis of the annular mounting member, and the arc-shaped reference lines on each glass plate are distributed on the same circle. The laser beam emitted by the laser rangefinder is perpendicular to the glass plate, and the distance between the laser beam emitted by each laser rangefinder and the axis of the annular mo...

specific Embodiment 2

[0053] Specific embodiment 2: A method for hoisting a vertical hydro-generator rotor, using the vertical hydro-generator rotor hoisting auxiliary device in specific embodiment 1 to hoist the vertical hydro-generator rotor, specifically, application The vertical hydro-generator rotor hoisting auxiliary device in the first two specific embodiments is used to hoist the vertical hydro-generator rotor.

[0054] Such as image 3 As shown, the method for hoisting the rotor of a vertical hydroelectric generator includes the following steps in sequence:

[0055] First, install a vertical hydraulic generator rotor hoisting auxiliary device to the rotor 9 of the vertical hydraulic generator. The specific installation is as follows. The ring-shaped mounting member is adsorbed and fixed to the rotor 9 of the vertical hydraulic generator through a magnet. And adjust the axis of the annular mounting member 1 to coincide with the axis of the rotor of the vertical hydraulic generator. The annular ...

specific Embodiment 3

[0066] Specific embodiment three: the vertical hydro-generator rotor hoisting method of this embodiment refers to specific embodiment two, the difference lies in:

[0067] In the fourth step, during the process of lowering the rotor of the vertical hydraulic generator through the bridge crane, monitor the vertical hydraulic generator rotor hoisting auxiliary device on the rotor of the vertical hydraulic generator, and each glass Whether the bright spot of the laser beam on the flat plate falls on the inner side of the arc-shaped reference line and whether the distance measurement value of each laser rangefinder is the same,

[0068] If the bright spot of the laser beam on the glass plate falls on the arc reference line or falls outside the arc reference line, the bridge machine stops lowering the rotor of the vertical hydro-generator, and returns to the three steps to pass the bridge The machine adjusts the position of the rotor of the vertical hydro-generator in the horizontal dir...

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Abstract

The invention discloses a vertical hydro-generator rotor hoisting auxiliary device and a hoisting method and aims to provide the vertical hydro-generator rotor hoisting auxiliary device and the hoisting method which not only can effectively reduce the number of workers required in the hoisting process of a vertical hydro-generator rotor and improve the hoisting efficiency, but also can effectivelyavoid the problem of contact between the rotor and a stator in the hoisting process of the vertical hydro-generator rotor. The vertical hydro-generator rotor hoisting auxiliary device comprises an annular mounting piece, a plurality of glass flat plates arranged around the outer side of the annular mounting piece, a connecting piece for connecting the glass flat plates and the annular mounting piece, magnets arranged on the annular mounting piece and laser range finders arranged on the glass flat plates in a one-to-one correspondence mode. An arc-shaped datum line is arranged on each glass flat plate, laser beams emitted by the laser range finders are perpendicular to the glass flat plates, and the distances between the laser beams emitted by the laser range finders and the axis of the annular mounting piece are the same.

Description

Technical field [0001] The invention relates to the field of vertical hydraulic generator rotor hoisting, in particular to a vertical hydraulic generator rotor hoisting auxiliary device and a hoisting method. Background technique [0002] When the rotor of the current vertical hydroelectric generator is hoisted out or reinstalled in the stator pit, it is necessary to arrange a staff member at each magnetic pole of the rotor, holding the wooden board in hand, and twitching up and down uninterruptedly, so as to find the stator and Whether there is any contact between the rotors; at the same time, the lifting commander constantly adjusts the position of the bridge crane and the trolley according to the contact position until the rotor is completely lifted out or the stator pit is reinstalled. At present, the operation of hoisting or reinstalling the rotor of the vertical hydroelectric generator into the stator pit requires a large number of workers to work together, which is inconve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C13/16B66C13/08H02K15/02
CPCB66C13/08B66C13/16H02K15/02
Inventor 李文清杨聃束炳芳顾平良张广华
Owner STATE GRID ZHEJIANG ELECTRIC POWER