CN2938083Y - Mechanical structure for regulating position of X-ray tube - Google Patents

Mechanical structure for regulating position of X-ray tube Download PDF

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Publication number
CN2938083Y
CN2938083Y CN 200620131714 CN200620131714U CN2938083Y CN 2938083 Y CN2938083 Y CN 2938083Y CN 200620131714 CN200620131714 CN 200620131714 CN 200620131714 U CN200620131714 U CN 200620131714U CN 2938083 Y CN2938083 Y CN 2938083Y
Authority
CN
China
Prior art keywords
ray tube
ray
lifting
motor
mechanical
Prior art date
Application number
CN 200620131714
Other languages
Chinese (zh)
Inventor
田宇纮
商颖健
Original Assignee
北京普析通用仪器有限责任公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 北京普析通用仪器有限责任公司 filed Critical 北京普析通用仪器有限责任公司
Priority to CN 200620131714 priority Critical patent/CN2938083Y/en
Application granted granted Critical
Publication of CN2938083Y publication Critical patent/CN2938083Y/en

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Abstract

Disclosed is a mechanical structure for adjusting the position of x-ray tubes stated in the utility model, comprising an equipment shell and an x-ray tube which is arranged inside the equipment shell and has a metal crust, a lifting cord shaft, a lifting bracket, a lifting motor, a pitching bracket and a pitching motor. The mechanical structure for adjusting the position of x-ray tubes stated in the utility model has the advantages that: since the direction of selected rotation regulation axis pass through the center of the x-ray tube target face (the theoretical starting point of x-ray from a beryllium-window), on the one hand the position of the center is close to the barycenter of the x-ray tube, the lifting bracket basically bears a positive pressure with a very small bending moment , thereby can basically not bend or deform to increase resistance to vertical motion and the mechanical structure can be more reliable; on the other hand since the angle of the x-ray from the x-ray tube has a theoretical value, the x-ray exit direction closer to the theoretical direction can be reckoned through optical path calculation, thus facilitating the initial position pre-set and regulated to make light regulating convenient, improving efficiency and finally achieving the demand of the light path.

Description

A kind of physical construction of adjusting the X-ray tube position
Technical field
The utility model relates to a kind of physical construction of adjusting the X-ray tube position, is particularly useful for the xrf analysis instrument.
Background technology
Utilize the xrf analysis instrument of total reflection technology that light channel structure is had very strict requirement, X ray need be injected in the narrow parallel slits, finally is radiated on the sample through total reflection, and the fluorescence that the excited sample material produces is detected device and receives.Here incoming position and the angle to X ray has strict requirement, therefore have only the whole instrument of realization that correctly just can reach of strict guarantee X-ray tube position finally to realize function and meet the requirements of performance index, in order to guarantee that X ray can satisfy the tram incident of functional requirement, usually the adjustment to the X-ray tube position is decomposed at the vertical adjustment of the axle that is parallel to entrance slit and relative to the adjustment of rotating of this axle.Satisfy the status requirement of light path on the opinion and be reasonable in one's demand on the one hand for the selection of adjustment mode and adjusting mechanism; Require adjusting mechanism to satisfy the requirement of structural mechanics on the other hand, make load balanced as far as possible.Existing adjustment mode and adjusting mechanism are located at the position of departing from X-ray pipe center of gravity with the rising-falling tone bearing, make the vertical direction adjusting mechanism also be subjected to moment of flexure except that being subjected to normal pressure, make the distortion of motor shaft and leading screw, and it is big to rub during motion, and inefficiency is easily stuck.So existing adjusting mechanism can satisfy the requirement of above-mentioned first aspect, and for the requirement of second aspect embody not enough, make adjusting mechanism be subjected to bigger stress, the motion work efficiency is lower, energy consumption is bigger.
The utility model content
The purpose of this utility model is to provide a kind of physical construction of adjusting the X-ray tube position, can obviously reduce the resistance in the lifting motor operation process, thereby make body function more reliable.
A kind of physical construction of adjusting the X-ray tube position described in the utility model, comprise apparatus casing and the X-ray tube with metal shell and lifting shaft, lifting support, lifting motor, pitching support and the pitching motor that are installed within the apparatus casing, described lifting shaft is located at the X-ray tube shell upper, this lifting shaft is parallel to entrance slit, and through X-ray tube target surface central point (the theoretical starting point of the X ray that penetrates from the beryllium window).Above-mentioned lifting shaft is connected on the driving shaft of lifting motor by lifting support, described lifting motor is fixedly installed in the apparatus casing, simultaneously, the bottom of X-ray tube shell is connected by the pitching support on the driving shaft of pitching motor, and described pitching motor is fixedly installed in the apparatus casing.
A kind of advantage of adjusting the physical construction of X-ray tube position described in the utility model is: because selected rotation regulating shaft direction is passed X-ray tube target surface central point (the theoretical starting point of the X ray that penetrates from the beryllium window), on the one hand this position is very near the centre of gravity place of X-ray tube, the support of vertically adjusting is subjected to normal pressure basically, suffered moment of flexure is very little, therefore can not produce flexural deformation basically and make vertical movement increase resistance; On the other hand, because there is theoretical value in the X ray angle that X-ray tube penetrates, can extrapolate comparatively approaching theoretical X ray exit direction by The Calculation of Optical Path, the initial position that conveniently sets in advance adjustment brings convenience to light modulation.A kind of physical construction of adjusting the X-ray tube position had both guaranteed that resistance was less in the motor operation course, and body function is reliable; Simultaneously when light path is adjusted, help to calculate empirical value, raise the efficiency the requirement of final realization light path.
Be described further below in conjunction with the embodiment of accompanying drawing the utility model temperature-control circuit.
Description of drawings
Fig. 1: structural representation of the present utility model
Embodiment
Embodiment one: the described a kind of physical construction of adjusting the X-ray tube position of present embodiment comprises apparatus casing and the X-ray tube with metal shell 2, lifting shaft 3, lifting support 5, lifting motor 6, pitch axis 7, pitching support 9 and the pitching motor 10 that are installed within the apparatus casing.Referring to accompanying drawing 1,1 is the X ray optical axis among the figure.
In the present embodiment, lifting shaft 3 is the axle shape projection of directly processing on the metal shell top of X-ray tube 2, and its parallel axes is in entrance slit, and through X-ray tube target surface central point (the theoretical starting point of the X ray that penetrates from the beryllium window).Above-mentioned lifting shaft is connected on the driving shaft of lifting motor by lifting support, concrete connected mode between lifting shaft and the lifting support adopts the hinge form, the axis of described lifting motor vertically is fixedly installed on the top substrate layer 4, and this top substrate layer 4 is fixed in the apparatus casing.
Simultaneously, be provided with pitch axis 7 in the metal shell bottom of X-ray tube 2, be connected by the pitching support on the driving shaft of pitching motor, the axis along continuous straight runs of described pitching motor is fixedly installed in down on the laminar substrate 8, and this time laminar substrate 8 is fixed in the apparatus casing.
Lifting motor is controlled the VTOL (vertical take off and landing) of X-ray tube 2 by lifting support, simultaneously, pitching motor is controlled the horizontal shift of X-ray tube 2 lower ends by the pitching support, and X-ray tube can be rotated around above-mentioned lifting shaft, reaches the purpose of adjusting X-ray tube 2 angles.

Claims (1)

1. physical construction of adjusting the X-ray tube position, comprise apparatus casing and the X-ray tube with metal shell and the lifting shaft that are installed within the apparatus casing, lifting support, lifting motor, pitching support and pitching motor, the bottom of X-ray tube shell is connected on the driving shaft of pitching motor by the pitching support, described pitching motor is fixedly installed in the apparatus casing, it is characterized in that described lifting shaft is located at the X-ray tube shell upper, this lifting shaft is parallel to entrance slit, and through X-ray tube target surface central point, above-mentioned lifting shaft is connected by lifting support on the driving shaft of lifting motor, and described lifting motor is fixedly installed in the apparatus casing.
CN 200620131714 2006-08-23 2006-08-23 Mechanical structure for regulating position of X-ray tube CN2938083Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200620131714 CN2938083Y (en) 2006-08-23 2006-08-23 Mechanical structure for regulating position of X-ray tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200620131714 CN2938083Y (en) 2006-08-23 2006-08-23 Mechanical structure for regulating position of X-ray tube

Publications (1)

Publication Number Publication Date
CN2938083Y true CN2938083Y (en) 2007-08-22

Family

ID=38362112

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200620131714 CN2938083Y (en) 2006-08-23 2006-08-23 Mechanical structure for regulating position of X-ray tube

Country Status (1)

Country Link
CN (1) CN2938083Y (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103175857A (en) * 2013-03-14 2013-06-26 中国科学院高能物理研究所 Device specially used for grazing incidence XAFS (X-ray Absorption Fine Structure) experiment and regulating method of device
CN107666862A (en) * 2015-05-27 2018-02-06 三星电子株式会社 Radiation imaging apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103175857A (en) * 2013-03-14 2013-06-26 中国科学院高能物理研究所 Device specially used for grazing incidence XAFS (X-ray Absorption Fine Structure) experiment and regulating method of device
CN103175857B (en) * 2013-03-14 2015-06-03 中国科学院高能物理研究所 Device specially used for grazing incidence XAFS (X-ray Absorption Fine Structure) experiment and regulating method of device
CN107666862A (en) * 2015-05-27 2018-02-06 三星电子株式会社 Radiation imaging apparatus

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EXPY Termination of patent right or utility model
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Granted publication date: 20070822