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Nuclear main pump stator shield sleeve zero-clearance plasticity attachment precision assembly device

A technology for assembling equipment and shielding sleeves, which is applied in the field of nuclear power, can solve the problems of aggravating the unevenness of shielding sleeve thickness deformation, the inability to perform precise assembly, and the inability to complete assembly, so as to achieve seamless plastic deformation attachment, save materials, and avoid The effect of failure

Inactive Publication Date: 2015-07-15
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Thin, the resulting force is too small, so the assembly cannot be completed; in addition, due to the fluidity of the air, the force generated in the axial direction is uneven, which aggravates the unevenness of the thickness deformation of the shielding sleeve; The production process is well controlled, and precision assembly is also not possible

Method used

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  • Nuclear main pump stator shield sleeve zero-clearance plasticity attachment precision assembly device
  • Nuclear main pump stator shield sleeve zero-clearance plasticity attachment precision assembly device
  • Nuclear main pump stator shield sleeve zero-clearance plasticity attachment precision assembly device

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Experimental program
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Embodiment Construction

[0027] figure 1 As shown in Fig. 2, the lower end cover 10 is fixed on the assembly platform 14 through the lower bolt assembly 13 and the fixing bolt 12, the lower support ring 8 is fixed on the lower end cover 10 through the set screw, and the support cylinder 6 passes through the lower support ring 8 and the lower end The center hole of the cover 10 is embedded on the component stand 14, the stator shielding sleeve 7 is fixed on the outer surface of the lower support ring 8 under the joint action of the lower support ring 8 and the lower sealing ring 9, the stator core model 5 passes through the lower end cover 10, the lower bolt The component 13 is fixed on the lower end cover 10, the upper support ring 4 is sleeved on the support tube 6 through its center hole, and the upper end cover 2 and the support tube 6 are connected with the stator core model 5 through the upper bolt assembly 1 .

[0028] Figure 3 is a partial enlarged view of structure A in Figure 2.

[0029] Fig...

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Abstract

The invention discloses a nuclear main pump stator shield sleeve zero-clearance plasticity attachment precision assembly device which is mainly used for zero-clearance plastic deformation attachment precision assembly between a nuclear main pump stator shield sleeve and a shield motor stator and belongs to the field of nuclear electricity. The nuclear main pump stator shield sleeve zero-clearance plasticity attachment precision assembly device is composed of a stator module, a module rack, a hydraulic system and a control system. Hydraulic pressure in a sealed cavity and a load path of the hydraulic pressure are accurately controlled after being determined through analysis of a technology value through utilization of incompressibility of liquid through computer programming, wherein the sealed cavity is formed by the stator shield sleeve and a support cylinder of the stator module. Assembly process of repeatedly and evenly loading and unloading the ultra-thin stator shield sleeve with a large length-diameter ratio is achieved. Plastic deformation of materials is accurately controlled and the zero-clearance plastic deformation attachment precision assembly of the stator shield sleeve is achieved.

Description

technical field [0001] The invention relates to a precision assembly equipment for the non-gap plastic attachment of the stator shielding sleeve of a nuclear main pump, which is mainly used for thin-wall stator shielding sleeves. [0002] The non-gap plastic deformation attachment precision assembly of the sub-shielding sleeve and the stator belongs to the field of nuclear power. Background technique [0003] In recent years, nuclear power has been more and more favored by countries due to its advantages of high efficiency, energy saving and environmental protection. In nuclear power plants, the nuclear reactor coolant main circulation pump - the nuclear main pump, is one of the key components of the nuclear reactor island and belongs to the nuclear safety first-level equipment. For the third-generation passive nuclear reactor, the nuclear main pump is a single-stage, fully sealed, high inertia, centrifugal unsealed shielded electric pump with a shielded motor. In order to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P21/00
Inventor 蒋玮刘华汉许枭
Owner DALIAN UNIV OF TECH
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