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Lower bracket mounting foundation positioning device and method of hydroelectric generating set

A technology for installing foundations and positioning devices, which is applied to engine components, machines/engines, and infrastructure engineering, etc., and can solve the problems that affect the vibration and compaction of foundation concrete pouring, the machine pit cannot be installed, and the quality of foundation pouring is difficult to guarantee. To achieve the effect of light weight, installation quality assurance, easy installation in place

Active Publication Date: 2014-10-15
CHINA GEZHOUBA GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the conventional process, the second-stage concrete of the foundation is poured after the hoisting and positioning of the lower frame, which can ensure the precise positioning of the lower frame. However, because the lower frame is a load-bearing frame, the rotor can only be hoisted after the concrete strength meets the design requirements. Concrete curing The period is long, during which no installation work can be carried out in the machine pit of the unit, which accounts for a long straight-line construction period; at the same time, due to the large foundation plate of the lower frame, it will affect the foundation concrete pouring and vibrating compactness after installation, and the quality of foundation pouring is difficult. Guaranteed, it will affect the stability of the unit operation

Method used

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  • Lower bracket mounting foundation positioning device and method of hydroelectric generating set
  • Lower bracket mounting foundation positioning device and method of hydroelectric generating set
  • Lower bracket mounting foundation positioning device and method of hydroelectric generating set

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as Figure 1~3 Among them, a foundation positioning device for installing the lower frame of a hydroelectric generator set, a fixed connection plate 17 is provided at the middle of the shaft 16, and the fixed connection plate 17 and one end of a plurality of positioning rods 19 are hinged through the first hinge point 18, and the positioning rod The other end of 19 is provided with locating plate 20, and locating plate 20 is provided with the hole that is used for positioning lower frame foundation 2 positioning bolts;

[0028] One end of the oblique support rod 8 is hinged with the positioning rod 19 through the second hinge point 7 from below, and the movable connecting disc 21 is movably socketed on the shaft 16, and the movable connecting disc 21 and the other end of the oblique supporting rod 8 pass through the third hinge point 9 hinged, on the shaft 16 are also fixed with the upper positioning disc 11 and the lower positioning disc 10, the movable connecting...

Embodiment 2

[0034] Such as Figure 1~3 Among them, a method for positioning the installation foundation of the lower frame by using the above-mentioned positioning device for the installation foundation of the lower frame of the hydro-generator set includes the following steps:

[0035] 1. Assemble the lower frame and install the basic positioning device;

[0036] According to the number and positioning dimensions of the installation base of the lower frame support arm of the hydroelectric generator set, according to the scheme of Embodiment 1, a telescopic lower frame installation base positioning device is manufactured, and the rigidity of each rod must meet the design requirements and be convenient. On-site installation and adjustment.

[0037] The assembly process is as follows:

[0038] The fixed connecting disc 17, the lower positioning disc 10 and the upper positioning disc 11 are all fixed on the shaft 16, and the movable connecting disc 21 can slide between the lower positionin...

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Abstract

The invention discloses a lower bracket mounting foundation positioning device and method of a hydroelectric generating set. A fixed connection tray is arranged in the central position of a shaft, and is hinged to one end of each of multiple positioning rods, and the other end of each of the positioning rods is provided with a positioning plate; one end of each of inclined support rods is hinged to the positioning rods from the lower part; a movable connection tray is arranged on the shaft movably in a sleeving manner, and is hinged to the other end of each of the inclined support rods; an upper positioning tray and a lower positioning tray are also arranged on the shaft; the movable connection tray slides between the upper positioning tray and the lower positioning tray; a lifting device is also provided; the lifting device is connected with the movable connection tray. During installation, the positioning rods are in a closed state, and pass through a limited channel to enter into a to-be-installed part. According to the lower bracket mounting foundation positioning device and method of the hydroelectric generating set, the telescoping lower bracket mounting foundation positioning device is adopted, during the construction periods of seat ring processing and stator payingoff processes, a pre-installed lower bracket is subjected to foundation bolt positioning, then the second phase concrete process of casting is performed, the straight line time limit for a project for installation of the generating set is not occupied, a telescoping structure is adopted, and thus installation in place is facilitated.

Description

technical field [0001] The invention relates to the positioning of the installation foundation of the lower frame of the hydraulic generator set, in particular to a positioning device and method for the installation foundation of the lower frame of the hydraulic generator set. Background technique [0002] The lower frame of the hydro-generator set is generally composed of a central body and multiple arms, and its installation accuracy is high. In order to ensure the installation accuracy of the multiple arms, the foundation bolts need to be accurately positioned before installation. The schematic diagram of the installation position of the lower rack is shown in figure 1 . According to the conventional process, the second-stage concrete of the foundation is poured after the hoisting and positioning of the lower frame, which can ensure the precise positioning of the lower frame. However, because the lower frame is a load-bearing frame, the rotor can only be hoisted after th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03B13/00E02D27/44
Inventor 江小兵程志华周晖陈强江晨
Owner CHINA GEZHOUBA GROUP CO LTD
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