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In-hole grinding device for electric heating element casing of voltage stabilizer

A technology of electric heating elements and voltage regulators, which is applied in the direction of grinding drive devices, grinding machines, metal processing equipment, etc., can solve the problems that grinding equipment cannot be realized, and achieve the effect of simple structure and convenient operation

Active Publication Date: 2022-07-29
NUCLEAR POWER INSTITUTE OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the above-mentioned technical problem of casing grinding, the existing grinding equipment cannot realize it, and it is necessary to develop a special grinding device to realize the removal of weld reinforcement and possible defects. The present invention provides a voltage stabilizer electric heating Grinding device in the hole of component casing

Method used

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  • In-hole grinding device for electric heating element casing of voltage stabilizer
  • In-hole grinding device for electric heating element casing of voltage stabilizer
  • In-hole grinding device for electric heating element casing of voltage stabilizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] like Figure 1 to Figure 7 As shown, the grinding device in the casing hole of the electric heating element of the voltage stabilizer includes a power assembly 1, a grinding head 29 connected with the power assembly 1 through the transmission assembly 2, a device frame as a bearing base, and also includes a grinding head 29 for adjusting the grinding head 29. Position alignment assembly, the transmission assembly 2 includes a transmission shaft 28, the grinding head 29 is mounted on the transmission shaft 28, and the alignment assembly includes a rolling bearing, a rotating body 13, and an eccentric adjustment slider 22;

[0040] The rotating body 13 is installed on the device frame and the rotating body 13 can rotate around its own axis;

[0041] The transmission shaft 28 is mounted on the eccentric adjustment slider 22 through a rolling bearing, and the eccentric adjustment slider 22 is slidably connected to the rotating body 13, and the sliding direction of the slidi...

Embodiment 2

[0048] This embodiment is further limited on the basis of Embodiment 1. As a technical solution in which the radial position of the grinding head 29 is continuously adjustable and the adjustment accuracy is high, it is provided as follows: it further includes the eccentric adjustment slider 22 and the rotating body 13. The feed screw 24 between them is used to drive the eccentric adjustment slider 22 to slide relative to the rotary body 13 in the radial direction of the rotary body 13 . For specific applications, a chute can be provided on the rotating body 13, and the groove wall of the chute can be used to provide an anti-rotation constraint for the eccentric adjustment slider 22, so that the eccentric adjustment slider can be driven during the process of rotating the feed screw 24. 22 slides along the axis direction of the feed screw 24 .

[0049] As mentioned above, for the specific application of this device, such as for the treatment of excess height, the overall excess ...

Embodiment 3

[0051] This embodiment is further limited on the basis of the technical solution provided in Embodiment 1. In the prior art, in order to adapt to the radial position adjustment of the eccentric adjustment slider 22, the corresponding reversing transmission member may include, for example, a flexible shaft, a universal joint 9 etc., as a technical solution that can reduce the vibration of the device during processing to facilitate the processing quality, it is set as follows: the reversing transmission member includes a universal joint 9, and the universal joint 9 serves as the transmission shaft 28 and the power Transmission connection between components 1.

[0052] In order to match the parallelism of the axes of the transmission shaft 28 and the power assembly 1, for example, after the relative positions of the power assembly 1 and the sleeve 27 are fixed, the adjustment of the radial position of the grinding head 29 does not affect the relationship between the sleeve 27 and ...

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Abstract

The invention discloses a grinding device in a casing hole of an electric heating element of a voltage stabilizer. Alignment assembly, the transmission assembly includes a transmission shaft, the grinding head is installed on the transmission shaft, the alignment assembly includes a rolling bearing, a rotating body, and an eccentric adjustment slider; the rotating body is installed on the device frame and the rotating body It can rotate around its own axis; the transmission shaft is installed on the eccentric adjustment slider through rolling bearings, and the eccentric adjustment slider can be slidably connected to the rotating body, and the sliding direction of the sliding is along the radial direction of the rotating body ; The transmission shaft is connected with the output end of the power assembly through the reversing transmission element. The device has a simple structure, and can conveniently accomplish the above-mentioned removal of excess weld height and possible defects.

Description

technical field [0001] The invention relates to the technical field of a voltage stabilizer maintenance device in a nuclear power plant, in particular to a grinding device in a casing hole of an electric heating element of a voltage stabilizer. Background technique [0002] The voltage stabilizer is one of the main equipments of the primary circuit system of the nuclear power reactor. By changing the temperature of the electric heating element inside the voltage stabilizer, the internal steam-water content ratio of the voltage stabilizer is adjusted, so as to maintain the operating pressure of the primary circuit. [0003] In the installation structure of the electric heating element sleeve and the lower head at the bottom of the voltage stabilizer, the sealing seam of the connection part works at a high temperature above 300 ℃ and in the operating environment with welding residual stress and working stress, and corrosion leakage of PWSCC occurs. The risk and probability are...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24B9/04B24B41/04B24B47/12B24B47/20B24B47/22
CPCB24B9/04B24B41/04B24B47/12B24B47/20B24B47/22
Inventor 杨彪陈志何少华袁军唐彬何小剑黄卫东
Owner NUCLEAR POWER INSTITUTE OF CHINA
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