CN221101057U - Alpha, beta surface pollution instrument positioning support - Google Patents
Alpha, beta surface pollution instrument positioning support Download PDFInfo
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- CN221101057U CN221101057U CN202323006778.7U CN202323006778U CN221101057U CN 221101057 U CN221101057 U CN 221101057U CN 202323006778 U CN202323006778 U CN 202323006778U CN 221101057 U CN221101057 U CN 221101057U
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- 238000001514 detection method Methods 0.000 claims abstract description 21
- 238000011109 contamination Methods 0.000 claims description 29
- 230000005855 radiation Effects 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims 3
- 238000000034 method Methods 0.000 abstract description 29
- 238000005259 measurement Methods 0.000 abstract description 7
- 238000012795 verification Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 101001121408 Homo sapiens L-amino-acid oxidase Proteins 0.000 description 5
- 102100026388 L-amino-acid oxidase Human genes 0.000 description 5
- 101000827703 Homo sapiens Polyphosphoinositide phosphatase Proteins 0.000 description 3
- 102100023591 Polyphosphoinositide phosphatase Human genes 0.000 description 3
- 101100012902 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) FIG2 gene Proteins 0.000 description 3
- 101100233916 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) KAR5 gene Proteins 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 230000002285 radioactive effect Effects 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 230000003471 anti-radiation Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000036544 posture Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000012857 radioactive material Substances 0.000 description 1
- 239000000941 radioactive substance Substances 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
Description
技术领域Technical Field
本实用新型属于核监测仪器技术领域,具体涉及α、β表面污染仪定位支架。The utility model belongs to the technical field of nuclear monitoring instruments, and in particular relates to a positioning bracket for α and β surface contamination instruments.
背景技术Background technique
α、β表面污染仪是核物理工作者用来测量被污染物体表面上放射性活度的辐射探测器,是保护人身安全、健康或环境免遭放射性核素污染而采取的一种措施,α、β表面污染仪广泛应用于医疗、工业、环境等行业,数量并呈逐年增加趋势;α and β surface contamination meters are radiation detectors used by nuclear physicists to measure the radioactivity on the surface of contaminated objects. They are a measure taken to protect personal safety, health or the environment from radioactive nuclide contamination. α and β surface contamination meters are widely used in medical, industrial, environmental and other industries, and the number is increasing year by year.
市场上α、β表面污染仪品牌种类繁多,但性能差异较大,这就需要有统一的标准来判定仪器是否合格,主要是依据JJG 478-2016《α、β表面污染仪检定规程》进行检定,规程中明确规定分别用α、β系列标准平面源测定α、β表面污染仪对α、β粒子的响应,α标准平面源距探测器窗表面距离为5mm,β标准平面源距探测器窗表面距离10mm,而且用α、β表面污染仪依次分别对α、β系列标准源测量时,每一系列标准源至少包括3个相邻量级的标准源,这就导致每检定一台α、β表面污染仪需手动依次更换多个标准平面源,致使整个检定过程操作繁琐且效率极其低下;There are many brands of α and β surface contamination meters on the market, but their performances vary greatly. This requires a unified standard to determine whether the instrument is qualified. The calibration is mainly based on JJG 478-2016 "α and β surface contamination meter calibration procedures". The procedure clearly stipulates that the α and β series standard plane sources are used to measure the response of α and β surface contamination meters to α and β particles, respectively. The distance between the α standard plane source and the detector window surface is 5mm, and the distance between the β standard plane source and the detector window surface is 10mm. In addition, when the α and β surface contamination meters are used to measure the α and β series standard sources in turn, each series of standard sources includes at least 3 standard sources of adjacent magnitudes. This results in the need to manually replace multiple standard plane sources in turn for each α and β surface contamination meter, making the entire calibration process cumbersome and extremely inefficient.
目前在实际检定过程中,需要通过人工手动测量标准平面源与探测器窗表面的距离并且满足上述检定规程里的标准距离,一方面致使不易控制检定距离、定位精度差、稳定性差(影响表面发射率响应和重复性的测量结果),另一方面致使检定效率低,增加检定人员接触放射源的时间,不利于工作人员健康;At present, in the actual calibration process, it is necessary to manually measure the distance between the standard plane source and the detector window surface and meet the standard distance in the above calibration procedures. On the one hand, it is difficult to control the calibration distance, the positioning accuracy is poor, and the stability is poor (affecting the measurement results of the surface emissivity response and repeatability). On the other hand, it leads to low calibration efficiency, increases the time that the calibration personnel are exposed to the radiation source, and is not conducive to the health of the staff;
鉴于以上,本申请提供α、β表面污染仪定位支架用于解决上述问题。In view of the above, the present application provides an α, β surface contamination meter positioning bracket to solve the above problems.
实用新型内容Utility Model Content
针对上述情况,为克服现有技术之缺陷,本实用新型提供α、β表面污染仪定位支架,可快速且精准的实现表面污染仪器、标准源之间的距离测定,而且在检定过程中无需移动表面污染仪,即可依次实现对若干系列的平面标准源进行测量,降低了检定过程中的繁琐程度,提高了工作效率。In view of the above situation, in order to overcome the defects of the prior art, the utility model provides an α, β surface contamination meter positioning bracket, which can quickly and accurately realize the distance measurement between the surface contamination instrument and the standard source, and there is no need to move the surface contamination meter during the calibration process, and several series of plane standard sources can be measured in turn, which reduces the tediousness of the calibration process and improves work efficiency.
α、β表面污染仪定位支架,包括平台,其特征在于,所述平台横行一侧上方设有放置盘且横向另一侧滑动安装有升降组件,所述放置盘内同轴心转动安装有标准源座且放置盘靠近升降组件一侧设有检测孔;The positioning bracket of the α and β surface contamination instrument comprises a platform, wherein a placement plate is provided above one side of the platform and a lifting assembly is slidably installed on the other side of the platform, a standard source seat is coaxially installed in the placement plate, and a detection hole is provided on the side of the placement plate close to the lifting assembly;
所述升降组件上设有工装槽且工装槽底壁固定有抵接部,所述抵接部上设有探照孔;The lifting assembly is provided with a tooling groove, and a contact portion is fixed to the bottom wall of the tooling groove, and the contact portion is provided with a searchlight hole;
所述工装槽上固定有竖向延伸的测量尺且测量尺0刻度线与抵接部上表面平齐。A vertically extending measuring ruler is fixed on the tooling groove, and a 0 scale line of the measuring ruler is flush with the upper surface of the abutment portion.
上述技术方案有益效果在于:The above technical solution has the following beneficial effects:
(1)本方案可快速且精准的实现表面污染仪器、标准源之间的距离测定,而且在检定过程中无需移动表面污染仪,即可依次实现对若干系列的平面标准源进行测量(避免来回重复更换标准源),降低了检定过程中的繁琐度,提高了工作效率;(1) This solution can quickly and accurately measure the distance between the surface contamination instrument and the standard source. In addition, during the calibration process, there is no need to move the surface contamination instrument, and several series of plane standard sources can be measured in sequence (avoiding repeated replacement of the standard source back and forth), which reduces the complexity of the calibration process and improves work efficiency.
(2)在本方案中,通过将待测量的标准源分别提前摆放在放置盘(表面设有防辐射层)内并且通过控制标准源座的转动,使得相应的标准源依次转动至检测孔位置处(未测量的标准源则处于放置盘内且被表面的防辐射层所遮蔽),从而尽最大程度的减少工作人员与放射源的接触,确保工作人员的健康、安全;(2) In this scheme, the standard sources to be measured are placed in advance in a placement tray (with a radiation protection layer on the surface) and the rotation of the standard source holder is controlled so that the corresponding standard sources are rotated to the detection hole position in sequence (the unmeasured standard sources are in the placement tray and shielded by the radiation protection layer on the surface), thereby minimizing the contact between the staff and the radiation source to the greatest extent possible and ensuring the health and safety of the staff;
(3)本方案中的放置盘、工装槽的高度还可根据需要进行相应的调整,使得不同身高的工作人员在使用该设备时,均可将其调整到一个相对较为舒适的位置、高度,以便于工作人员对其进行操作。(3) The height of the placement tray and tooling slot in this solution can also be adjusted accordingly as needed, so that workers of different heights can adjust the device to a relatively comfortable position and height when using it, so as to facilitate the operation of the device.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1为本实用新型工装槽、放置盘分离时状态视示意图;FIG1 is a schematic diagram of the utility model when the tooling slot and the placement tray are separated;
图2为本实用新型工装槽位于放置盘上方时状态示意图;FIG2 is a schematic diagram of the state when the tooling slot of the utility model is located above the placement plate;
图3为本实用新型放置盘部分剖视后内部结构示意图;FIG3 is a schematic diagram of the internal structure of the utility model after partial section of the placement plate;
图4为本实用新型放置盘、标准源座、承载板、放置孔位置关系示意图;FIG4 is a schematic diagram showing the positional relationship among the placement plate, the standard source seat, the carrier plate, and the placement holes of the present invention;
图5为本实用新型标准源座、放置孔、承载板分离状态示意图;FIG5 is a schematic diagram of the standard source seat, placement hole, and carrier plate of the utility model in a separated state;
图6为本实用新型承载板结构示意图。FIG6 is a schematic diagram of the structure of the load-bearing plate of the present invention.
具体实施方式Detailed ways
有关本实用新型的前述及其他技术内容、特点与功效,在以下配合参考附图1至图6对实施例的详细说明中,将可清楚的呈现,以下实施例中所提到的结构内容,均是以说明书附图为参考。The above and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of the embodiments with reference to Figures 1 to 6. The structural contents mentioned in the following embodiments are all based on the drawings in the specification as reference.
实施例1,本实施例提供α、β表面污染仪定位支架,如图1所示,包括平台1,本方案的改进之处在于:Embodiment 1: This embodiment provides an α, β surface contamination instrument positioning bracket, as shown in FIG1 , including a platform 1. The improvement of this solution is that:
在平台1的横行一侧上方设有放置盘2且横向另一侧水平滑动安装有升降组件,如图4所示,在放置盘2内同轴心转动安装有标准源座3(标准源座3上下两端均与放置盘2上下两壁不接触),标准源座3内间隔环绕摆放有若干标准源,由于在对α、β表面污染仪进行检定时,需要对α、β系列标准源进行测量,每一系列标准源(α、β)至少包括3个相邻量级的标准源,故,要想实现完整且符合规范的检定过程,需要在放置盘2内摆放至少6个标准源(α标准源3个,β标准源3个),α、β平面标准源是将相应的放射性物质通过电镀方法附着在铝制或不锈钢的基材上,用于实现对α、β表面污染仪的检定;A placement plate 2 is provided above one side of the platform 1 and a lifting assembly is installed horizontally and slidably on the other side of the platform 1. As shown in FIG4 , a standard source seat 3 is coaxially installed in the placement plate 2 (both upper and lower ends of the standard source seat 3 are not in contact with the upper and lower walls of the placement plate 2). A number of standard sources are placed around the standard source seat 3 at intervals. When calibrating the α and β surface contamination instruments, it is necessary to measure the α and β series standard sources, and each series of standard sources (α and β) includes at least 3 standard sources of adjacent magnitudes. Therefore, in order to achieve a complete and standardized calibration process, at least 6 standard sources (3 α standard sources and 3 β standard sources) need to be placed in the placement plate 2. The α and β plane standard sources are obtained by attaching the corresponding radioactive substances to an aluminum or stainless steel substrate by electroplating, and are used to realize the calibration of the α and β surface contamination instruments.
如图1所示,在放置盘2靠近升降组件一侧设有检测孔4,在设计组件上设有工装槽5,如图3中所示,工装槽5底部一体设有抵接部6,在抵接部6中间部位设有探照孔7,如图2所示,在工装槽5一侧外壁上固定安装有测量尺8且测量尺8的0刻度线与抵接部6的上表面保持平齐(测量尺8的0刻度线位于上端),本实施例在具体工作时,过程如下:As shown in FIG1 , a detection hole 4 is provided on the side of the placement plate 2 close to the lifting assembly, and a tooling slot 5 is provided on the design assembly. As shown in FIG3 , an abutment portion 6 is integrally provided at the bottom of the tooling slot 5, and a searchlight hole 7 is provided in the middle of the abutment portion 6. As shown in FIG2 , a measuring ruler 8 is fixedly installed on the outer wall of one side of the tooling slot 5, and the 0 scale line of the measuring ruler 8 is kept flush with the upper surface of the abutment portion 6 (the 0 scale line of the measuring ruler 8 is located at the upper end). When the embodiment is working, the process is as follows:
工作人员首先将相应数量的平面标准源摆放至位于放置盘2内的标准源座3上,然后通过水平移动升降组件并且使得工装槽5移动至位于检测孔4的上方位置,随后将待检定的表面污染仪放置于工装槽5内,在放置表面污染仪时,需使得表面污染仪的探测器窗朝下并且使得表面污染仪设有探测器窗一侧抵接在抵接部6上端面(如图3中所示),此时探测器窗、探针孔、检测孔4刚好在竖向处于相对应位置,此时探测器窗距离平台1上端面的距离S1(通过升降组件可对其进行调节),放置盘2内标准源座3上的标准源上表面距离平台1上端面的距离S2(为固定值),在进行检定时,只需满足S1-S2满足5mm(10mm)即可,检定规范中要求:α标准平面源距探测器窗表面距离为5mm,β标准平面源距探测器窗表面距离10mm;The staff first places a corresponding number of plane standard sources on the standard source holder 3 in the placement tray 2, and then moves the lifting assembly horizontally and moves the tooling slot 5 to a position above the detection hole 4, and then places the surface contamination instrument to be calibrated in the tooling slot 5. When placing the surface contamination instrument, the detector window of the surface contamination instrument must face downward and the side of the surface contamination instrument with the detector window must abut against the upper end surface of the abutment portion 6 (as shown in FIG. 3). At this time, the detector window, the probe hole, and the detection hole 4 are just in corresponding positions vertically. At this time, the distance S1 between the detector window and the upper end surface of the platform 1 (which can be adjusted by the lifting assembly), and the distance S2 between the upper surface of the standard source on the standard source holder 3 in the placement tray 2 and the upper end surface of the platform 1 (which is a fixed value). When performing calibration, it is only necessary to satisfy that S1-S2 meets 5mm (10mm). The calibration specification requires that: the distance between the α standard plane source and the detector window surface is 5mm, and the distance between the β standard plane source and the detector window surface is 10mm;
在调整S1时,工作人员只需观察测量尺8的刻度即可(省去了对标准源和平台1之间距离的测量,减少了不必要的操作流程),由于测量尺8的0刻度线和抵接部6的上表面保持平齐,即,相当于和表面污染仪的探测器窗保持平齐(处于同一高度上),工作人员只需观察平台1上端面所对应的测量尺8上的读数即可,使得该读数满足:其与标准源和平台1上端面之间的距离(S2)的差值符合上述检定规范里的要求;When adjusting S1, the staff only needs to observe the scale of the measuring ruler 8 (omitting the measurement of the distance between the standard source and the platform 1, reducing unnecessary operation procedures). Since the 0 scale line of the measuring ruler 8 and the upper surface of the abutment portion 6 are kept flush, that is, they are equivalent to being kept flush with the detector window of the surface contamination meter (at the same height), the staff only needs to observe the reading on the measuring ruler 8 corresponding to the upper end surface of the platform 1, so that the reading satisfies: the difference between it and the distance (S2) between the standard source and the upper end surface of the platform 1 meets the requirements of the above-mentioned verification specifications;
假定首先对α标准平面源进行检测,此时S1-S2为5mm,每完成一个α标准平面源的检测后,通过转动标准源座3并且使之转动一定角度,使得另一α标准平面源转动至位于检测孔4下方的对应位置处,直至完成3个相邻量级的α标准平面源的检测后,开始对β标准平面源进行检测,此时需要通过升降组件调整工装槽5的竖向高度,使得S1-S2为10mm,随后可依次对3个相邻量级的β标准平面源进行检测(其过程与检测α标准平面源相同,在此不做过多描述);Assume that the α standard plane source is detected first, and S1-S2 is 5mm at this time. After each α standard plane source is detected, the standard source holder 3 is rotated and rotated by a certain angle so that another α standard plane source is rotated to the corresponding position below the detection hole 4. After the detection of 3 adjacent magnitudes of α standard plane sources is completed, the β standard plane source is detected. At this time, the vertical height of the tooling slot 5 needs to be adjusted by the lifting assembly so that S1-S2 is 10mm. Then, the 3 adjacent magnitudes of β standard plane sources can be detected in turn (the process is the same as that of detecting the α standard plane source, and no further description is given here);
在本方案中,每完成一个标准源的检测后,无需工作人员频繁更换标准源,通过转动标准源座3即可实现依次对相邻量级的标准源进行检测过程,避免了中间频繁更换标准源的繁琐过程,而且由于探测器窗距离标准源之间的距离较近,从而导致每更换一个标准源时,均需要首先将待检定的表面污染仪移走,在完成标准源的更换后,再将表面污染仪移动至标准源上方进行检测,此种情况更加增大了检定过程的繁琐度,同时效率极其低下,频繁移动表面污染仪也使得其探测器窗与标准源之间的距离产生不确定性变化,增加了表面污染仪检定的不确定度。In the present scheme, after completing the detection of each standard source, there is no need for the staff to frequently replace the standard source. By rotating the standard source holder 3, the detection process of the standard sources of adjacent magnitudes can be realized in turn, thereby avoiding the tedious process of frequently replacing the standard source in the middle. Moreover, since the distance between the detector window and the standard source is relatively close, each time a standard source is replaced, the surface contamination meter to be calibrated needs to be moved away first. After the replacement of the standard source is completed, the surface contamination meter is moved to the top of the standard source for detection. This situation further increases the cumbersomeness of the calibration process and is extremely inefficient. Frequent movement of the surface contamination meter also causes uncertainty in the distance between its detector window and the standard source, thereby increasing the uncertainty of the surface contamination meter calibration.
实施例2,在实施例1的基础上,如图5所示,标准源座3上同轴心间隔环绕设有若干放置孔9且放置孔9内竖向滑动安装有承载板10,如图6所示,在承载板10底部一体设有凸起部11,如图4所示,在与检测孔4对应位置且位于标准源座3下方的放置盘2内设有环状凸起12且环状凸起12经与之一体连接的螺纹杆13料位配合安装在放置盘2底壁上,螺纹杆13底部设有手柄14(便于工作人员转动螺纹杆13),本实施例在具体使用时,过程如下:Embodiment 2, on the basis of embodiment 1, as shown in FIG5, a plurality of placement holes 9 are coaxially spaced around the standard source seat 3, and a carrier plate 10 is vertically slidably installed in the placement hole 9, as shown in FIG6, a protrusion 11 is integrally provided at the bottom of the carrier plate 10, as shown in FIG4, an annular protrusion 12 is provided in the placement plate 2 corresponding to the detection hole 4 and located below the standard source seat 3, and the annular protrusion 12 is installed on the bottom wall of the placement plate 2 through a threaded rod 13 integrally connected thereto, and a handle 14 is provided at the bottom of the threaded rod 13 (to facilitate the staff to rotate the threaded rod 13). When this embodiment is used specifically, the process is as follows:
由于α、β标准源采用不同的放射性核素制备时,其源底衬的厚度也各不相同,所谓源底衬就是制备标准源时使用的用于固定放射性物质的支撑体,一般为铝材或不锈钢制品,在α、β和γ平面标准源通用技术条件(中华人民共和国国家标准GB/T 13694-2008)中可查得,在使用铝材或不锈钢制品作为源底衬时,其对应的厚度是不同的,从而会导致在使用不同的放射性核素制成的α、β标准源其厚度也各不相同,在检定过程中,若直接将上述标准源摆放在标准源座3上,则导致S1的值不再为固定值(受源底衬厚度不同的影响,还需对两者之间的距离S1进行手动读数测量);Since the α and β standard sources are prepared with different radioactive nuclides, the thickness of the source lining is also different. The so-called source lining is a support used to fix the radioactive material when preparing the standard source, which is generally made of aluminum or stainless steel. It can be found in the General Technical Conditions for α, β and γ Planar Standard Sources (National Standard of the People's Republic of China GB/T 13694-2008) that when aluminum or stainless steel is used as the source lining, the corresponding thickness is different, which will cause the thickness of the α and β standard sources made with different radioactive nuclides to be different. During the calibration process, if the above standard source is directly placed on the standard source holder 3, the value of S1 will no longer be a fixed value (affected by the different thickness of the source lining, the distance S1 between the two needs to be manually read and measured);
在本实施例中为了使得针对不同源底衬的标准源进行检测时,使得标准源上端面与平台1上端面之间的距离S1仍为一个固定值(省去对标准源上端面和平台1上端面之间距离的测量过程),在标准源座3上间隔环绕设有若干与之竖向滑动安装的承载板10,将标准源放置在承载板10上,通过调整环状凸起12的竖向高度使得每当有承载板10随着标准源座3转动至环状凸起12正上方位置时,在环状凸起12、凸起部11的配合作用下,使得放置于承载板10上的标准源上端面始终与放置盘2的上表面保持平齐(如图4中所示,由于放置盘2与平台1上端面之间的距离为固定值,进而使得标准源和平台1上端面之间的距离也为一个固定值),而未转动至检测孔4位置处的其他标准源其上端面与放置盘2内顶壁之间间隔一定距离(不影响标准源座3在放置盘2内的转动),从而实现针对由不同厚度的源底衬所制备成的标准源用于检定时,无需再测量标准源上端面和平台1上端面之间的距离,直接通过控制环状凸起12的竖向高度,使得当标准源随标准源座3转动至检测孔4正下方位置时,在环状凸起12和凸起部11的配合下,使得标准源上端面与放置盘2上表面保持平齐即可,免去了还需测量标准源和平台1之间的距离的繁琐过程;In this embodiment, in order to ensure that the distance S1 between the upper end surface of the standard source and the upper end surface of the platform 1 remains a fixed value when the standard source with different source substrates is detected (omitting the process of measuring the distance between the upper end surface of the standard source and the upper end surface of the platform 1), a plurality of carrier plates 10 are arranged around the standard source seat 3 and vertically slidably mounted thereon, and the standard source is placed on the carrier plate 10. By adjusting the vertical height of the annular protrusion 12, whenever the carrier plate 10 rotates with the standard source seat 3 to a position directly above the annular protrusion 12, the upper end surface of the standard source placed on the carrier plate 10 is always kept flush with the upper surface of the placement plate 2 under the cooperation of the annular protrusion 12 and the protrusion 11 (as shown in FIG. 4, due to the distance between the placement plate 2 and the upper end surface of the platform 1 The distance between the standard source and the upper end surface of the platform 1 is a fixed value, and the distance between the standard source and the upper end surface of the platform 1 is also a fixed value), while the upper end surfaces of other standard sources that have not rotated to the position of the detection hole 4 are spaced a certain distance from the inner top wall of the placement plate 2 (without affecting the rotation of the standard source holder 3 in the placement plate 2), so that when the standard sources prepared by source substrates of different thicknesses are used for calibration, there is no need to measure the distance between the upper end surface of the standard source and the upper end surface of the platform 1, and the vertical height of the annular protrusion 12 is directly controlled, so that when the standard source rotates with the standard source holder 3 to the position directly below the detection hole 4, the upper end surface of the standard source is kept flush with the upper surface of the placement plate 2 under the cooperation of the annular protrusion 12 and the protrusion 11, thereby eliminating the cumbersome process of measuring the distance between the standard source and the platform 1;
在测距时,工作人员需通过测量尺8进行测量,而且由于测量精度需精确到mm,需要工作人员盯着测量尺8上的读数进行仔细观察,而且工作人员还需对工装槽5与平台1上端面之间的距离进行测量读数,由此一来增加了工作人员负担(需要工作人员多次对测量尺8上的读数进行观察并且读出测量值),而本实施例只需通过调整环状凸起12的竖向位置并且使之和设于承载板10底壁的凸起部11相配合,使得放置有标准源的承载板10随标准源座3转动至检测孔4正下方位置时,使得标准源上端面和放置盘2上表面保持平齐即可(在具体操作时,可在放置盘2上表面放置有薄板,通过转动螺纹杆13使得环状凸起12顶着凸起部11,进而使得承载板10上移,直至使得标准源上表面抵触于薄板上且此时承载板10受薄板的阻碍无法继续上移,此时标准源上表面与放置盘2上表面平齐),从而省去了工作人员通过观察测量尺8读数而获知标准源上表面和平台1上端面之间距离这一过程(降低对工作人员的用眼需求,减少其工作强度)。When measuring distance, the staff needs to measure with the measuring ruler 8, and because the measurement accuracy needs to be accurate to mm, the staff needs to stare at the reading on the measuring ruler 8 and observe carefully, and the staff also needs to measure the distance between the tooling slot 5 and the upper end surface of the platform 1, thereby increasing the burden on the staff (the staff needs to observe the reading on the measuring ruler 8 and read the measurement value many times). In this embodiment, only the vertical position of the annular protrusion 12 is adjusted and matched with the protrusion 11 provided on the bottom wall of the supporting plate 10, so that the supporting plate 10 with the standard source placed thereon is rotated with the standard source seat 3 to the position just below the detection hole 4. When the standard source is in the right position, the upper end surface of the standard source is kept flush with the upper surface of the placement plate 2 (in specific operation, a thin plate can be placed on the upper surface of the placement plate 2, and the annular protrusion 12 is pressed against the protrusion 11 by rotating the threaded rod 13, thereby moving the supporting plate 10 upward until the upper surface of the standard source is in contact with the thin plate and the supporting plate 10 is hindered by the thin plate and cannot continue to move upward. At this time, the upper surface of the standard source is flush with the upper surface of the placement plate 2), thereby eliminating the need for the staff to observe the reading of the measuring ruler 8 to know the distance between the upper surface of the standard source and the upper end surface of the platform 1 (reducing the demand on the eyes of the staff and reducing their work intensity).
实施例3,在实施例2的基础上,如图5所示,在标准源座3外壁均布设有齿系15,如图3所示,在放置盘2上转动安装有与齿系15啮合的调节齿轮16,工作人员通过转动调节齿轮16进而实现带动标准源座3在放置盘2内进行转动,从而实现将不同的标准源移动至位于检测孔4的正下方位置处,以实现完成检定过程;Embodiment 3, on the basis of Embodiment 2, as shown in FIG5, a gear system 15 is evenly distributed on the outer wall of the standard source seat 3, and as shown in FIG3, an adjusting gear 16 meshing with the gear system 15 is rotatably installed on the placement plate 2, and the staff drives the standard source seat 3 to rotate in the placement plate 2 by rotating the adjusting gear 16, so as to move different standard sources to the position directly below the detection hole 4, so as to complete the calibration process;
注:由于若干承载板10之间等距间隔环绕设置,故,每次工作人员转动调节齿轮16的角度为固定值,可在调节齿轮16上设置对应的角度值,以辅助工作人员精准的控制调节齿轮16的转动角度。Note: Since the plurality of carrier plates 10 are arranged equidistantly around each other, the angle of the adjusting gear 16 is fixed each time the staff member rotates it. A corresponding angle value can be set on the adjusting gear 16 to assist the staff member in accurately controlling the rotation angle of the adjusting gear 16.
实施例4,在实施例3的基础上,如图2所示,在远离升降组件一侧的平台1上设有滑轨17且放置盘2竖向滑动安装在滑轨17上,滑轨17上转动安装有与放置盘2螺纹安装的调节螺杆18(通过转动调节螺杆18可调整放置盘2在竖向的高度),本方案中可对放置盘2的竖向高度进行调节,以满足针对不同的工作人员(其身高不同)对其进行操作使用时,通过调整放置盘2的位置高度(放置盘2的竖向高度决定着工装槽5的竖向高度),使得工作人员处于一个较为舒适的姿势完成整个检定过程;Embodiment 4, on the basis of embodiment 3, as shown in FIG2, a slide rail 17 is provided on the platform 1 away from the lifting component side, and the placement plate 2 is vertically slidably installed on the slide rail 17, and an adjusting screw 18 threadedly installed with the placement plate 2 is rotatably installed on the slide rail 17 (the vertical height of the placement plate 2 can be adjusted by rotating the adjusting screw 18). In this scheme, the vertical height of the placement plate 2 can be adjusted to meet the needs of different staff members (whose heights are different) when operating and using it. By adjusting the position height of the placement plate 2 (the vertical height of the placement plate 2 determines the vertical height of the tooling slot 5), the staff can complete the entire calibration process in a more comfortable posture;
在本实施例中由于放置盘2的位置可竖向调整,故,在放置盘2上设置对照尺19并且对照尺19的0刻度线和放置盘2的上表面保持平齐(如图2、3中所示),当不同工作人员根据其较为舒适的姿态调整好放置盘2在竖向的高度时,然后通过升降组件根据放置盘2的竖向高度相应的调整工装槽5的竖向高度,使得测量尺8、对照尺19与平台1上端面对应处的刻度值之间的差值满足5mm或10mm即可;In this embodiment, since the position of the placement tray 2 can be adjusted vertically, a reference ruler 19 is provided on the placement tray 2 and the 0 scale line of the reference ruler 19 is kept flush with the upper surface of the placement tray 2 (as shown in FIGS. 2 and 3). When different workers adjust the vertical height of the placement tray 2 according to their more comfortable postures, the vertical height of the tooling slot 5 is adjusted accordingly according to the vertical height of the placement tray 2 by the lifting assembly, so that the difference between the scale values at the corresponding positions of the measuring ruler 8, the reference ruler 19 and the upper end surface of the platform 1 satisfies 5mm or 10mm.
如图3所示,测量尺8高出对照尺19部分的距离即为探测器窗与标准源上表面之间的距离,若指定固定人员方可使用该设备,则该工作人员只需在首次使用该设备时,将放置盘2调整至一个合适的高度后即可,后续再次使用该设备时,无需调整放置盘2的竖向高度。As shown in Figure 3, the distance where the measuring ruler 8 is higher than the reference ruler 19 is the distance between the detector window and the upper surface of the standard source. If only fixed personnel are designated to use the equipment, the staff only needs to adjust the placement plate 2 to a suitable height when using the equipment for the first time. There is no need to adjust the vertical height of the placement plate 2 when using the equipment again.
实施例5,在实施例1的基础上,如图1所示,升降组件包括升降架20且工装槽5竖向滑动安装于升降架20,所述升降架20上转动安装有与工装槽5螺纹安装的升降螺杆21,工作人员通过旋拧升降螺杆21可实现对工装槽5在竖向位置的调整,通过旋拧水平螺杆22可实现对升降架20(工装槽5)在水平位置上的调整;Embodiment 5, on the basis of Embodiment 1, as shown in FIG1 , the lifting assembly includes a lifting frame 20 and the tooling slot 5 is vertically slidably mounted on the lifting frame 20, and a lifting screw 21 threadedly mounted on the tooling slot 5 is rotatably mounted on the lifting frame 20, and the staff can adjust the tooling slot 5 in the vertical position by screwing the lifting screw 21, and can adjust the lifting frame 20 (tooling slot 5) in the horizontal position by screwing the horizontal screw 22;
如图1所示,此时工装槽5与放置盘2在竖向不再重叠并且将检测孔4露出,工作人员可通过该检测孔4完成标准源的放置或者取出。As shown in FIG. 1 , at this time, the tooling slot 5 and the placement plate 2 no longer overlap in the vertical direction and the detection hole 4 is exposed, and the staff can place or remove the standard source through the detection hole 4 .
实施例6,在实施例5的基础上,由于在检定过程中针对α、β标准源检测时,需调整工装槽5的竖向高度,本实施例为了能够使得对工装槽5的竖向高度调整过程更为快速且精确度更高,本实施例设置以下结构特征:Embodiment 6, based on Embodiment 5, since the vertical height of the tooling slot 5 needs to be adjusted when testing the α and β standard sources during the calibration process, in order to make the vertical height adjustment process of the tooling slot 5 faster and more accurate, this embodiment sets the following structural features:
如图1所示,升降螺杆21同轴转动有从动齿轮23且从动齿轮23一侧啮合有大齿轮24,从动齿轮23另一侧啮合有小齿轮25,小齿轮25同轴转动有第一微齿26且第一微齿26啮合有第二微齿27,当需要调整工装槽5的竖向高度时,在初始的一段调整过程中(此时工装槽5距离设定位置最远),工作人员可通过转动大齿轮24进而实现带动从动齿轮23转动,以提高工装槽5在竖向的调整动速率,使得装槽快速移动至接近预定位置处,待工装槽5移动至接近预定位置处时,通过旋转第二微齿27并且通过第一微齿26、小齿轮25实现带动从动齿轮23转动,此时由于第一微齿26、第二微齿27、小齿轮25之间的啮合传动,使得针对从动齿轮23的传动更为精密,从而实现对工装槽5的竖向高度调整可控度更高。As shown in FIG1 , the lifting screw 21 coaxially rotates with a driven gear 23, and a large gear 24 is meshed on one side of the driven gear 23, and a small gear 25 is meshed on the other side of the driven gear 23. The small gear 25 coaxially rotates with a first micro-tooth 26, and the first micro-tooth 26 is meshed with a second micro-tooth 27. When the vertical height of the tooling slot 5 needs to be adjusted, in the initial adjustment process (when the tooling slot 5 is farthest from the set position), the staff can rotate the large gear 24 to drive the driven gear 23 to rotate, so as to increase the vertical adjustment rate of the tooling slot 5, so that the tooling slot moves quickly to a position close to the predetermined position. When the tooling slot 5 moves to a position close to the predetermined position, the second micro-tooth 27 is rotated and the driven gear 23 is driven to rotate through the first micro-tooth 26 and the small gear 25. At this time, due to the meshing transmission between the first micro-tooth 26, the second micro-tooth 27 and the small gear 25, the transmission to the driven gear 23 is more precise, thereby achieving a higher controllability of the vertical height adjustment of the tooling slot 5.
实施7,在实施例1的基础上,本方案在放置盘2表面设有防辐射层,当未检测的标准源处于放置盘2内时,通过设于其表面的防辐射层对标准源进行有效的屏蔽,尽可能的减少工作人员与辐射源的接触,确保工作人员的健康。Implementation 7. Based on Example 1, this solution provides an anti-radiation layer on the surface of the placement tray 2. When the undetected standard source is in the placement tray 2, the anti-radiation layer provided on its surface is used to effectively shield the standard source, thereby reducing the contact between the staff and the radiation source as much as possible and ensuring the health of the staff.
上面所述只是为了说明本实用新型,应该理解为本实用新型并不局限于以上实施例,符合本实用新型思想的各种变通形式均在本实用新型的保护范围之内。The above description is only for illustrating the present invention, and it should be understood that the present invention is not limited to the above embodiments, and various variations that conform to the concept of the present invention are within the protection scope of the present invention.
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