Device for measuring cross-ball distance

A technology that spans the ball distance and measures the ball. It is used in measurement devices, mechanical measurement devices, and mechanical devices. It can solve the problems of difficulty in ensuring accuracy and increase the radiation dose of personnel, and achieve the effect of rapid measurement.

Pending Publication Date: 2022-01-11
CNNC NUCLEAR POWER OPERATION MANAGEMENT +1
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  • Abstract
  • Description
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Problems solved by technology

[0006] According to the structure of the fuel channel and the high-radiation environment on site, directly using the measuring ball or measuri

Method used

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  • Device for measuring cross-ball distance
  • Device for measuring cross-ball distance
  • Device for measuring cross-ball distance

Examples

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Example Embodiment

[0038] While the present invention from the ball across the measuring apparatus can be implemented in many different ways, but will be described herein in conjunction with the accompanying drawings of exemplary embodiments described in detail, it is understood that the description herein is to be considered by the measuring device across the ball away to illustrate the structure, but the present invention is not intended to be limited to the scope of the exemplary embodiments. Thus, in essence, and figures described specific embodiments are to be considered illustrative and not restrictive of the invention.

[0039] In the description of the present invention, it should be noted that the orientation or positional relationship indicated herein, the term "upper", "lower", "left", "right", "inner", "outer", "horizontal" and the like is merely for convenience of description and the present invention is to simplify the description, but does not indicate or imply that the device or elem...

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Abstract

The invention provides a device for measuring a cross-ball distance, which comprises a measuring rod, one end of the measuring rod is connected with a zero-setting dial indicator, the other end of the measuring rod is connected with a measuring base, a measuring head of the dial indicator faces the measuring base, the measuring base is provided with a special-shaped hole, and a measuring ball is arranged in the special-shaped hole. The bottom of the measuring ball protrudes outwards relative to the bottom face of the measuring base, and a notch is formed in a corner formed by the inner side face of the measuring base and the bottom face to expose the measuring ball. The device for measuring the cross-ball distance provided by the invention can accurately and quickly measure the axial cross-ball distance from the conical surface step to the end surface of a fuel channel end part.

Description

technical field [0001] The invention relates to the technical field of nuclear industry equipment measurement, in particular to a device for measuring the cross-ball distance. Background technique [0002] The fuel channel end parts of the heavy water reactor constitute the main heat transfer system of the primary circuit, which has the functions of positioning and supporting the fuel rod bundle, and sealing the high-pressure and high-temperature heavy water coolant. Such as figure 1 As shown, the loading and unloading machine for refueling relies on the clamping force generated by the clamping mechanism of the nozzle assembly so that the wedge-shaped claw 2 is clamped on the conical surface step of the fuel channel, and the central support cylinder 3 and the end part 1 of the fuel channel are tightly attached to each other. At the same time, rely on the sealing surface of the fuel channel end face, the static sealing ring and the sealing surface of the central support cyli...

Claims

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Application Information

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IPC IPC(8): G01B5/02G01B5/14
CPCG01B5/02G01B5/14
Inventor 李平原高照曹烽华苗润泽江东飞蒋军建王晓峰
Owner CNNC NUCLEAR POWER OPERATION MANAGEMENT
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