Large-sized protecting lead door assembled by lead bricks
A lead door and lead brick technology, applied in the field of protective devices for non-destructive testing, can solve the problems that the lead door is difficult to open smoothly, there is no transportation condition, and the external size is too large, so as to reduce the problem of radiation leakage, Simple processing and good load-bearing effect
Inactive Publication Date: 2012-05-02
DONGDAN AOLONG RADIATIVE INSTR GRP
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Problems solved by technology
Ordinary jaws can be processed and then transported to the factory for installation, but large-scale jaws are not only too heavy, but also too large in size, so there is no transportation condition at all, and they are easily deformed during transportation
If the lead plate required for protection is too thick, it is not easy to process it even on site
Moreover, because the jaw is too large and the movement stroke is too long, it is difficult to open the jaw smoothly, and it is prone to jamming
Method used
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Embodiment Construction
[0011] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0012] figure 1 , figure 2 , image 3 with Figure 4 Shown is an embodiment of a large-scale protective lead door assembled by lead bricks. In this embodiment, the size of the large lead door is 8004mm×5450mm, and the protective lead brick 17 is 50mm. With the addition of composite lead strips, only the lead weight About 30 tons, the overall weight is about 50 tons, and the stroke is about 8 meters. Therefore, 4 wheels have been designed on the jaw door body 7, two driven wheels 2 are equipped with on the left side below the jaw door body 7, and two driving wheels 3 are equipped with on the right side below the jaw door body 7, because on-site It is difficult to achieve the ideal installation requirements under the installation conditions. This design of the present invention can ensure that at least one wheel on the left and right sides is in contact wi...
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The invention discloses a large-sized protecting lead door assembled by lead bricks. A lead door framework is formed by welding two steel pipes; mutually plugged lead bricks are mounted between the lead bricks; two faces of the lead bricks are equipped with lining plates; composite lead strips are installed in the big steel pipes at four sides; two faces of the lead door frame are equipped with decorative panels; the left and the right sides under the lead door body are respectively equipped with two driven wheels and two active wheels; an active chain wheel is installed on the driving motor; two active wheels are respectively equipped with two driven chain wheels; the active wheel and the driven wheel are connected and placed on a heavy rail via the chain; both sides of the driving motor are equipped with tensioning wheels; the angle steel frame welded on an embedding piece of a protecting room wall is fixed with a channel steel component used as a slide way on the lead door body; the upper end of the lead door body is equipped with a fixing shaft and a rolling bearing; the rolling bearing is installed in a taper sleeve roll wheel capable of rolling in the channel steel component via a stopping ring for holes and a stopping ring for shafts. The protective lead door of the invention is convenient to assemble in field and stable in running; the problem due to ray leakage of the lead plate joint is reduced; the lead door is hard to deform.
Description
technical field [0001] The invention relates to a protection device for non-destructive testing, in particular to a large protective lead door for a non-destructive testing protection room assembled from lead bricks. Background technique [0002] In the non-destructive testing industry, protective devices are an indispensable and important part. In the flaw detection room constructed of concrete, the lead door is the main protection focus. Ordinary jaws can be processed and then transported to the factory for installation, but large jaws are not only too heavy, but also too large in size, so there is no transportation condition at all, and they are easily deformed during transportation. If the lead plate required for protection is too thick, it is not easy to process it on site. Furthermore, because the jaw is too large and the movement stroke is too long, it is difficult for the opening of the jaw to be stable, and it is prone to jamming. Contents of the invention [00...
Claims
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Inventor 张晶袁宵宇刘大智张华
Owner DONGDAN AOLONG RADIATIVE INSTR GRP