Radiation field adjusting device

A technology for adjusting devices and ray fields, which is applied in the field of radiography, and can solve problems such as high precision requirements for gear manufacturing, difficult repairs, and difficult clearance adjustments.

Active Publication Date: 2016-03-30
NUCTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of transmission has high requirements on the manufacturing precision of the gears, and it is difficult to repair when wear occurs, and it is difficult to adjust the gap

Method used

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  • Radiation field adjusting device
  • Radiation field adjusting device
  • Radiation field adjusting device

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0013] The following will refer to the attached Figures 1A to 3C Describe the structure and principle of the ray field adjusting device according to the embodiment of the present invention, wherein Figures 1A-1B The transmission principle of the ray field adjustment device according to the embodiment of the present invention is shown, Figures 2A-2C 3A-3C show the overall structure of the radiation field adjusting device according to the embodiment of the present invention.

[0014] Specifically, the ray field adjustment device 100 according to the embodiment of the present invention includes: a support frame 1, the support frame 1 includes a pair of vertical arc support frames 11 arranged at intervals along the horizontal direction H and a pair of vertical arc support frames 11 arranged at intervals along the vertical direction V The horizontal arc bracing frame 12; At least four chains 2 (as shown in Figure 2 are 8 for example), each vertical arc bracing frame 11 and each...

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Abstract

The invention discloses a radiation field adjusting device. The radiation field adjusting device comprises a support framework, at least four chains, one pair of vertical radiation field adjusting blocks, one pair of horizontal radiation field adjusting blocks and a driving motor, wherein the support framework comprises one pair of vertical arc support frames and one pair of horizontal arc support frames; at least one of the at least four chains is mounted on each of the vertical and horizontal arc support frames along the arc orientation; a chain wheel and a guide assembly are arranged on the two end surfaces of each vertical radiation field adjusting block, and the chain wheels are respectively meshed with at least one chain mounted on the pair of vertical arc support frames; a chain wheel and a guide assembly are arranged at the two end surfaces of each horizontal radiation field adjusting block, and the chain wheels are respectively meshed with at least one chain mounted on the pair of horizontal arc support frames; and the driving motor is used for driving each chain wheel to rotate and mesh with the corresponding chain.

Description

technical field [0001] The invention relates to the technical field of radiography, in particular to a ray field adjustment device. Background technique [0002] In radiography, a device for adjusting a radiation irradiated area (ie, a radiation field) is indispensable. For example, in the process of radiotherapy, industrial ray nondestructive testing, etc., it is necessary to adjust the ray field of the ray. [0003] Typically, the ray field adjustment block is used to adjust the ray field during radiography. Specifically, during the adjustment process, it is necessary to make the side of the adjustment block close to the ray field and the target point (ie, the ray source point) on the same plane (extended plane), so as to avoid penumbra in the ray field. This requires that the adjustment movement of the ray field adjustment block is along the arc track, and the center of the arc is the target point. [0004] At present, the transmission mode used for ray field adjustmen...

Claims

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Application Information

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IPC IPC(8): F16H7/06
CPCF16H7/06
Inventor陈玉梅唐传祥刘耀红阎忻水李健高峰
OwnerNUCTECH CO LTD