Quick-change grabbing fixture type fuel rod remote grabbing tool

A fuel rod and remote technology, which is applied in the direction of manufacturing tools, reactor fuel elements, nuclear engineering, etc., can solve the inability to quickly replace the tool gripper, waste of space and cost, and the inability to grab the side of the fuel rod or cut it off and other problems, to achieve the effect of adjustable clamping force, saving space and cost, and fast connection

Active Publication Date: 2012-06-27
NUCLEAR POWER INSTITUTE OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] There are two kinds of existing irradiated fuel rod grabbing tools, which are fork-shaped opening tool and collar tool. The rod is used for side grabbing or grabbing after the end is

Method used

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  • Quick-change grabbing fixture type fuel rod remote grabbing tool
  • Quick-change grabbing fixture type fuel rod remote grabbing tool
  • Quick-change grabbing fixture type fuel rod remote grabbing tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0025] Such as figure 1 , 2 As shown in , 3, the quick-change grip type fuel rod remote gripping tool of the present invention includes a tool shaft, and a gripper A or gripper B connected with the tool stem.

[0026] The tool bar includes: an inner connecting pipe 1, an outer connecting pipe 2, a positioning ring 3, a position indicating pin 4, a connecting nut 5, a connecting sleeve 6, and a connecting block 7. The inner connecting pipe 1 is arranged inside the outer connecting pipe 2, and the outer connecting pipe 2 is connected with the gripping head A or the gripping head B through the connecting sleeve 6, and the inner connecting pipe 1 is connected with the gripping head A or the gripping head B through the connecting block 7.

[0027] The tool bar is the carrier of two kinds of grippers, that is, the carrier of gripper A or gripper B, so that the operator can operate the gripper from a long distance. At the same time, there is a quick-change joint mechanism on the too...

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PUM

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Abstract

The invention discloses a quick-change grabbing fixture type fuel rod remote grabbing tool. The tool comprises a tool bar, a grabbing fixture A, and a grabbing fixture B. According to the invention, a single tool can be provided with various fuel rod grabbing fixtures, such that the fuel rod can be grabbed on a side and a non-end part. Also, the clamping force for grabbing can be adjusted, such that the surface of the fuel rod is prevented from being scratched when grabbed. With the tool bar, a remote operation distance is provided. The tool bar is divided into an inner layer and an outer layer. When a grabbing fixture is assembled, first, an internal joint of the grabbing fixture A or the grabbing fixture B is assembled through threads; then the tool bar is connected to an outer pipe of the grabbing fixture through a connection sleeve and bolts. The grabbing fixture A is a conical ferrule type grabbing fixture. Through the interaction of an inner cone and an outer cone, the elastic grabbing fixture is tightened, and clamping forces are provided. The grabbing fixture B is a clamp-plate type grabbing fixture. Through a conical draw rod, the grabbing fixture is tightened, and the fuel rod can be tightly clamped.

Description

technical field [0001] The invention belongs to a special grabbing tool, in particular to a fuel rod remote grabbing tool which can quickly replace the grabbing head. Background technique [0002] After the nuclear reactor fuel assembly has been used in the reactor, the fission products in the fuel rods make the fuel rods have strong radiation, which is not suitable for grasping at close range. Therefore, it is necessary to use shields and use remote tools to grasp the fuel rods. [0003] There are two kinds of existing irradiated fuel rod grabbing tools, which are fork-shaped opening tool and collar tool. The rod is used for side grabbing or grabbing after the end is cut off, and the quick replacement of the tool grabbing head cannot be achieved, resulting in the need to configure a tool for each grabbing situation, resulting in a waste of space and cost. Contents of the invention [0004] The purpose of the present invention is to overcome the shortcomings and deficienc...

Claims

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Application Information

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IPC IPC(8): G21C19/105B25J1/06
CPCY02E30/30
Inventor 李成业李文钰王立德李劲松刘晓松邓鹏宇黄仁忠张强郑海川沈燕青凃晓彬
Owner NUCLEAR POWER INSTITUTE OF CHINA
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