Large vertical water pump centering device capable of presetting offset and method for presetting offset

An offset and centering technology, applied in the field of large vertical water pump centering devices, can solve problems such as deviation and insufficient compensation ability, and achieve the effects of easy adjustment, improved accuracy and high plane accuracy

Pending Publication Date: 2020-10-16
国家能源集团谏壁发电厂
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method will produce large deviations for water pumps connected to large-diameter rigid pipelines and the compensation capacity of the pipeline itself is insufficient.

Method used

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  • Large vertical water pump centering device capable of presetting offset and method for presetting offset
  • Large vertical water pump centering device capable of presetting offset and method for presetting offset
  • Large vertical water pump centering device capable of presetting offset and method for presetting offset

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Embodiment Construction

[0039] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0040] see figure 1 and figure 2 According to a preferred embodiment of the present invention, a large-scale vertical water pump centering device with a preset offset amount includes a disc type centering bracket 1 and an adjustable steel wire weight device 2,

[0041] The disc-type centering support 1 and the adjustable steel wire weight device 2 are pinned and fixed; by improving the original centering tool from a horse stool structure to a precision machined disc support type, the original The steel wire weight bracket is changed to an adjustable steel wire weight device, so that it conforms to the hole position of the existing disc type bracket, and can be finely ad...

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Abstract

The invention relates to a large vertical water pump centering device capable of presetting offset and a method for presetting offset, and belongs to the technical field of water pump centering. The device comprises a disc type centering support and an adjustable steel wire heavy punch device. The disc type centering support comprises an installation disc and a centering platform, and the centering support is fixedly connected with the centering platform. The adjustable steel wire heavy punch device comprises an annular mounting base plate located at the bottom, and an annular working platformon the top. The working platform and the mounting chassis are fixedly connected through a plurality of supporting columns. A bottom sliding rail is fixedly connected to the surface of the working platform through pins. A first sliding block is arranged on the surface of the bottom sliding rail in a sliding mode. And a second sliding block is slidably arranged on the top face of the first slidingblock, a steel wire heavy punch retracting and releasing mechanism is fixedly connected to the top of the second sliding block, a first sliding block driving mechanism is connected to the rear end ofthe first sliding block in the sliding direction, and a second sliding block driving mechanism is connected to the rear end of the second sliding block in the sliding direction.

Description

technical field [0001] The invention relates to a large-scale vertical water pump centering device and a method for presetting the offset amount, which belong to the technical field of water pump centering. Background technique [0002] At present, a large vertical water pump is composed of a large vertical asynchronous motor and a vertical water pump. The purpose of adjusting the center is to ensure that the dynamic and static parts of the water pump can be freely on the same vertical center line during operation. The sloshing superposition value should be smaller than the fit clearance of the moving and static parts. [0003] The common way to find the center is the steel wire vertical method, that is to find the concentricity of the stator part of the water pump and fix it, and then to find the center of the rotating part. However, this method will produce a large deviation for the water pump connected to the large-diameter rigid pipeline and the compensation capacity of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B5/252
CPCG01B5/252
Inventor 杨浩潘挺陈军姚明强石卫兵
Owner 国家能源集团谏壁发电厂
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