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Regulating mechanism for emitter irradiator ray angle

A technology of adjusting device and radiation source, applied in radiation/particle processing, using diaphragm/collimator, nuclear engineering, etc., can solve the problems of complex mechanism, large volume and high manufacturing cost, and achieve simple operation, low cost, compact effect

Active Publication Date: 2009-12-23
NUCTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of using this device is that the mechanism is complicated, the volume is large, and the manufacturing cost is high.

Method used

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  • Regulating mechanism for emitter irradiator ray angle
  • Regulating mechanism for emitter irradiator ray angle
  • Regulating mechanism for emitter irradiator ray angle

Examples

Experimental program
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Embodiment Construction

[0017] see Figure 1 to Figure 5 , the present invention includes a base 5, a shield body 2 and a gear transmission mechanism. The base 5 is equipped with shielding layers with the same structure as the front and rear layers and arranged vertically to each other. Each layer of shielding layer is composed of lead screw 4 and guide rail light rod 6 placed in both sides of the frame of the machine base 5, two lead screw sliders 3 placed on each lead screw 4 and guide rail light rod 6, and each lead screw The slide block 3 is movably embedded and placed on the circular arc guide rail 1 fixed with the frame of the machine base 5 and consists of a slidable shielding body 2 and a gear transmission mechanism connected with the 4 ends of each lead screw. Each lead screw slider 3 and each shielding body 2 are movable embedded in the form that each screw slider 3 is provided with a shifting block 7, and each shielding body 2 is provided with a chute 8 on both sides of the end surface, a...

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PUM

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Abstract

The invention provides a device for adjusting the ray angle of a radiation source, which relates to the radiation photograph and imaging detection technology field. The invention comprises a frame, shields and gear transmission mechanisms. The structural character of the invention is that the frame is provided with front and rear shielding layers which have the same structure and are in vertical arrangement. Each shielding layer comprises screw rods and guide rail feeding rods arranged in both sides of the frame, two screw rods slipper blocks arranged on each screw rod and each guiding rail feeding rod, sliding shields in scarf joint with each screw rod slipper block and arranged on an arc guide rail fixed on the frame and the gear transmission mechanism in connection with each screw rod end. Each screw rod is divided into threaded sections of opposite rotating directions. When the gear transmission mechanisms are rotating, the screw rod slipper blocks are driven by each screw rod to drive each shield to move along the track of the arc guide rail so as to adjust a rectangular section gap formed by the four shields. Compared with the prior art, the invention has a compact structure, less occupation, low cost and simple operation.

Description

technical field [0001] The invention relates to the technical fields of radiography and imaging detection, in particular to a device for adjusting the ray angle of a radiation source. Background technique [0002] At present, the technology of taking pictures and CT detection of workpieces with ray sources has been widely used in medical and industrial production. The radiation emitted by the radiation source is distributed in a conical shape, and the radiation working area is generally required to be an adjustable rectangular cross-section, and the redundant radiation area needs to be shielded and absorbed. [0003] In the prior art, the mechanism for shielding redundant rays generally uses a gear train to drive the shielding body to rotate around the source point of the rays. The end face of the shielding body is fixed to the gear, and under the drag of the motor, the gear drives the shielding body to rotate around the large gear. The axis of the gearwheel passes through...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G21K1/00G21K1/02
Inventor 刘耀红陈玉梅李健
Owner NUCTECH CO LTD