CN111419259B - Mechanism suitable for installation and adjustment of X-ray tube of CT equipment - Google Patents
Mechanism suitable for installation and adjustment of X-ray tube of CT equipment Download PDFInfo
- Publication number
- CN111419259B CN111419259B CN202010251609.1A CN202010251609A CN111419259B CN 111419259 B CN111419259 B CN 111419259B CN 202010251609 A CN202010251609 A CN 202010251609A CN 111419259 B CN111419259 B CN 111419259B
- Authority
- CN
- China
- Prior art keywords
- bulb
- plate
- adjusting
- ray tube
- mounting
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/02—Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computerised tomographs
- A61B6/032—Transmission computed tomography [CT]
- A61B6/035—Mechanical aspects of CT
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/10—Application or adaptation of safety means
- A61B6/107—Protection against radiation, e.g. shielding
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/44—Constructional features of apparatus for radiation diagnosis
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/44—Constructional features of apparatus for radiation diagnosis
- A61B6/4429—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units
- A61B6/4435—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit and the detector unit being coupled by a rigid structure
Abstract
The invention provides a mechanism suitable for installing and adjusting an X-ray tube of CT equipment, which relates to the technical field of medical equipment and comprises an X-ray tube, a bulb hoop assembly, a bulb installation mechanism assembly and a rotary substrate, wherein the lower part of the bulb installation mechanism assembly is arranged on the rotary substrate, the upper part of the bulb installation mechanism assembly is provided with the X-ray tube, the bulb hoop assembly is arranged on the upper part of the X-ray tube, and two sides of the bulb hoop assembly are respectively and fixedly connected with the bulb installation mechanism assembly; because the ball pipe hoop component adopts an arc-shaped structural design, the centrifugal force resisting effect is enhanced, the ball pipe hoop component has a clamping effect on the X-ray tube, and can resist larger centrifugal force in a high-speed rotating state of the frame, so that reliable connection and fixation between the X-ray tube and the rotating substrate component are ensured. The mechanical structure of the invention adopts a split design, and simultaneously realizes the movement of the focal point of the X-ray tube in the X direction and the Z direction, and the invention has convenient installation and simple operation.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a mechanism suitable for installing and adjusting an X-ray tube of CT equipment.
Background
In CT devices, an X-ray tube is a device that generates X-rays, and is typically positioned at the top of a CT gantry rotor at an angle of 180 ° to a detector data acquisition system; the pipe sleeve of the X-ray tube is provided with a mechanical interface for mounting and fixing, but because the X-ray tube generates larger centrifugal force when rotating at high speed under the drive of a rotor, the X-ray tube must be ensured to be reliably connected and fixed, and meanwhile, because of the influence of manufacturing errors of the X-ray tube and mounting errors of mechanical parts on a rack, when the X-ray tube is mounted, the accurate position relation among a focus, an anti-scattering grid and a detector data acquisition system is difficult to ensure, and the accurate irradiation position can be influenced.
Patent document CN201349357Y discloses an X-ray tube mounting assembly and a medical X-ray photography system having the same, comprising an X-ray tube, a driving mechanism for driving the X-ray tube to move, a moving guide rail, at least one fixed guide rail, a line hanging trolley, a fixed seat and a fixed trolley guide rail, wherein both ends of the driving mechanism are respectively connected with the X-ray tube and the moving guide rail, the moving guide rail is perpendicular to each fixed guide rail and forms a moving pair, the trolley guide rail is parallel to the fixed guide rail, the line hanging trolley and the trolley guide rail form a moving pair, the trolley guide rail is positioned between the fixed guide rail and the fixed seat, the line hanging trolley and the moving guide rail all have a first line passing position, but the design structure is unreasonable.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a mechanism suitable for installing and adjusting an X-ray tube of a CT device.
The invention provides a mechanism suitable for installing and adjusting an X-ray tube of a CT device, which comprises the X-ray tube, a ball pipe hoop assembly 1, a ball pipe installing mechanism assembly 2 and a rotary substrate 5;
the lower part of the bulb tube mounting mechanism assembly 2 is mounted on the rotary substrate 5, and the upper part of the bulb tube mounting mechanism assembly 2 is provided with an X-ray tube;
the bulb hoop assembly 1 is arranged at the upper part of the X-ray tube, and the bulb hoop assembly 1 is fixedly connected with the bulb mounting mechanism assembly 2.
Preferably, the device also comprises a bulb mounting gasket 3, a bulb mounting bracket fixing block 4 and a bulb hoop gasket 10;
a ball pipe hoop gasket 10 is arranged between the ball pipe hoop assembly 1 and the ball pipe installation mechanism assembly 2;
the bulb tube installation mechanism assembly 2 is installed on the rotary base plate 5 through a screw, and a bulb tube installation gasket 3 is sleeved on the screw;
the two sides of the bulb installation mechanism assembly 2 are respectively provided with a bulb installation frame fixing block 4.
Preferably, the ball pipe hoop assembly 1 comprises a ball pipe hoop connecting sheet metal 9, a ball pipe hoop 13, a first ball pipe hoop connecting shaft 14 and a second ball pipe hoop connecting shaft 15;
two symmetrical fixed connection holes extend from the ball pipe hoop 13, a first accommodating space is arranged between the two fixed connection holes, the ball pipe hoop connection metal plate 9 is arranged in the first accommodating space, and the first ball pipe hoop connection shaft 14 sequentially penetrates through the first fixed connection hole, the ball pipe hoop connection metal plate 9 and the second fixed connection hole, and two ends of the first ball pipe hoop connection shaft are fastened through nuts;
the ball pipe hoop 13 is provided with a mounting through hole, the second ball pipe hoop connecting shaft 15 is mounted in the mounting through hole, and two ends of the second ball pipe hoop connecting shaft extend to the outside of the mounting through hole respectively and are connected through nut fastening.
Preferably, the bulb mounting mechanism assembly 2 comprises a bulb mounting plate 21, a Z-direction adjusting plate 22, a pipe hoop mounting block 23, a third bulb hoop connecting shaft 24, a light outlet tungsten plate 25 and a lead shielding ray window 26;
the X-ray tube is mounted on a bulb mounting plate 21;
the third ball pipe hoop connecting shaft 24 is arranged on the ball pipe mounting plate 21 through a pipe hoop mounting block 23;
the light outlet tungsten plate 25 and the lead shielding ray window 26 are arranged right below the X-ray tube and are sequentially arranged on the bulb tube mounting plate 21;
the Z-direction adjusting plate 22 is provided with a mounting groove in which the bulb mounting plate 21 is mounted with a mounting gap so as to realize horizontal movement of the X-ray tube in the X-direction.
Preferably, the bulb mounting mechanism assembly 2 further comprises an X-direction bulb adjusting bolt 27, a bulb X-direction adjusting fixed block 28, a bulb X-direction adjusting guide block 29, an X-direction outer adjusting bolt baffle 30, and an X-direction inner adjusting bolt baffle 31;
the bulb X-direction adjusting guide block 29 is arranged on the bulb mounting plate 21;
the bulb X-direction adjusting fixed block 28, the X-direction outer adjusting bolt baffle 30 and the X-direction inner adjusting bolt baffle 31 on both sides are arranged on the Z-direction adjusting plate 22;
an internally threaded hole is formed in the bulb X-direction adjusting guide block 29, and an external thread is formed on the X-direction bulb adjusting bolt 27;
one end of the X-direction bulb adjusting bolt 27 provided with external threads is matched and mounted on an internal threaded hole of the bulb X-direction adjusting guide block 29, the other end of the X-direction bulb adjusting bolt 27 is a first operation end and sequentially passes through the X-direction inner adjusting bolt baffle 31, the bulb X-direction adjusting fixed block 28 and the X-direction outer adjusting bolt baffle 30 and extends to the outside of the X-direction outer adjusting bolt baffle 30;
when the bulb adjusting bolt 27 is turned in the X direction, the bulb X direction adjusting guide block 29 moves in a direction approaching or separating from the bulb X direction adjusting fixing block 28.
Preferably, the bulb mounting mechanism assembly 2 further includes two X-direction adjustment reticles 32;
the two X-direction adjustment reticles 32 are disposed on both sides of the X-ray tube and mounted on the Z-direction adjustment plate 22.
Preferably, the device also comprises two first Z-direction elastic limiting mechanisms 6;
the two first Z-direction elastic limiting mechanisms 6 are arranged on two sides of the rotary substrate 5 along the X direction;
the two first Z-direction elastic limiting mechanisms 6 are respectively connected with the Z-direction adjusting plate 22, and when the Z-direction adjusting plate 22 moves along the Z-direction, the two first Z-direction elastic limiting mechanisms 6 limit the movement stroke of the Z-direction adjusting plate 22.
Preferably, the first Z-direction elastic limit mechanism 6 includes an end face limit plate 61, a Z-direction limit mechanism top plate 62, a Z-direction limit score plate 63, a spring limit screw 64, a spring 65, and a Z-direction limit mechanism bottom plate 66;
the bottom of the bottom plate 66 of the Z-direction limiting mechanism is mounted on the rotary substrate 5, the top plate 62 of the Z-direction limiting mechanism is mounted on the top of the bottom plate 66 of the Z-direction limiting mechanism, and a second accommodating space and a third accommodating space are formed between the top plate 62 of the Z-direction limiting mechanism and the bottom plate 66 of the Z-direction limiting mechanism;
the end surface limiting plate 61 is arranged at one end, close to the second accommodating space, of the bottom plate 66 of the Z-direction limiting mechanism;
one end of the spring limit screw 64 penetrates through the end face limit plate 61 and sequentially extends into the second accommodating space and the third accommodating space and is fixedly connected with one end of the Z-direction limit reticle 63 arranged in the third accommodating space, and the other end of the spring limit screw 64 is a free end, wherein the other end of the Z-direction limit reticle 63 extends to the outside of the third accommodating space and is connected with the Z-direction adjusting plate 22;
the spring 65 is arranged in the second accommodating space and sleeved on the spring limit screw 64;
when the Z-direction adjustment plate 22 moves in a direction away from the end surface limiting plate 61, the spring limiting screw 64 follows the movement of the Z-direction adjustment plate 22, and the other end of the spring limiting screw 64 compresses the spring 65 and limits the movement stroke of the Z-direction adjustment plate 22.
Preferably, the device also comprises a second Z-direction elastic limiting mechanism 7;
the second Z-direction elastic limiting mechanism 7 is arranged on the rotary base plate 5 and is in driving connection with the Z-direction adjusting plate 22.
Preferably, the second Z-direction elastic limiting mechanism 7 includes a Z-direction adjusting block 41, a Z-direction adjusting block connecting plate 42, a Z-direction adjusting bolt 43, and a Z-direction adjusting bolt baffle 44;
the Z-direction adjusting block 41 is mounted on the Z-direction adjusting plate 22;
one end of the Z-direction adjusting bolt 43 with threads sequentially passes through the Z-direction adjusting bolt baffle 44 and the Z-direction adjusting block connecting plate 42 and is in driving connection with the Z-direction adjusting block 41, and the other end of the Z-direction adjusting bolt 43 is a second operation end and a free end;
when the second operation end is turned, the Z-direction adjusting bolt 43 turns and drives the Z-direction adjusting block 41 to move the Z-direction adjusting plate 22 along the axial direction of the Z-direction adjusting bolt 43.
Compared with the prior art, the invention has the following beneficial effects:
1. the ball pipe hoop component 1 adopts an arc-shaped structural design, the ball pipe hoop component 1 has a certain clamping effect on the installed X-ray tube, the resistance effect on centrifugal force is enhanced, the effect of larger centrifugal force can be resisted under the state that the frame rotates at a high speed, and the X-ray tube and the rotating substrate 5 are ensured to be reliably connected and fixed.
2. The structure of the invention adopts a split type design, realizes the movement of the focus of the X-ray tube in the X direction and the Z direction, can realize the high-precision alignment among the focus of the bulb tube, the anti-scattering grid and the detector data acquisition system, and reduces the scattering of X rays, thereby improving the quality of CT images.
3. The first Z-direction elastic limiting mechanism 6 provides continuous elastic force for the Z-direction limiting reticle to ensure that the Z-direction limiting reticle is in contact with the X-ray tube Z-direction adjusting plate 22 at all times, and plays a role in positioning and limiting.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a side view of the bulb collar assembly 1, the bulb mounting mechanism assembly 2;
FIG. 3 is a top view of the bulb mounting mechanism assembly 2;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;
fig. 5 is a top view of the first Z-direction elastic limit mechanism 6 and the second Z-direction elastic limit mechanism 7;
fig. 6 is a schematic structural view of the first Z-direction elastic limiting mechanism 6;
fig. 7 is a side sectional view of the first Z-direction elastic stopper mechanism 6.
The figure shows:
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present invention.
The invention provides a mechanism suitable for installing and adjusting an X-ray tube of a CT device, which comprises the X-ray tube, a ball pipe hoop assembly 1, a ball pipe installing mechanism assembly 2 and a rotary base plate 5, wherein the ball pipe hoop assembly is shown in figure 1; in a preferred embodiment, the bulb hoop assembly 1 has an arc structure, and the X-ray tube adopts a bulb; the lower part of the bulb mounting mechanism assembly 2 is mounted on the rotary substrate 5, the upper part of the bulb mounting mechanism assembly 2 is provided with an X-ray tube, preferably, the X-ray tube is mounted on the bulb mounting mechanism assembly 2 through a screw, the bulb hoop assembly 1 is arranged on the upper part of the X-ray tube, and two sides of the bulb hoop assembly 1 are respectively and tightly connected with the bulb mounting mechanism assembly 2; because the ball pipe hoop component 1 adopts an arc-shaped structural design, the centrifugal force resisting effect is better, the ball pipe hoop component 1 has a certain clamping effect on the installed X-ray tube, and can resist the action of larger centrifugal force under the high-speed rotating state of the frame, so that the X-ray tube and the rotating substrate 5 are reliably connected and fixed.
Specifically, as shown in fig. 1 and 2, the device further comprises a bulb mounting gasket 3, a bulb mounting bracket fixing block 4 and a bulb hoop gasket 10; a ball pipe hoop gasket 10 is arranged between the ball pipe hoop assembly 1 and the ball pipe installation mechanism assembly 2; the bulb installation mechanism assembly 2 is installed on the rotary substrate 5 through a screw, the bulb installation gasket 3 is sleeved on the screw, and the bulb installation gasket 3 and the bulb hoop gasket 10 play a certain role in buffering, so that the screw is prevented from loosening in frequent rotation; the two sides of the bulb installation mechanism component 2 are respectively provided with a bulb installation rack fixing block 4, so that the limiting effect can be achieved, and the position deviation is prevented.
Specifically, as shown in fig. 2, the two sides of the bulb tube installation mechanism assembly 2 are respectively provided with a hanging ring 8, so that the hoisting and maintenance of the equipment are facilitated.
Specifically, as shown in fig. 1 and 2, the pipe hoop assembly 1 includes a pipe hoop connecting sheet metal 9, a pipe hoop 13, a first pipe hoop connecting shaft 14, and a second pipe hoop connecting shaft 15; two symmetrical fixed connection holes extend from the ball pipe hoop 13, a first accommodating space is arranged between the two fixed connection holes, the ball pipe hoop connection metal plate 9 is arranged in the first accommodating space, and the first ball pipe hoop connection shaft 14 sequentially penetrates through the first fixed connection hole, the ball pipe hoop connection metal plate 9 and the second fixed connection hole, and two ends of the first ball pipe hoop connection shaft are fastened through nuts; the ball pipe hoop 13 is provided with an installation through hole, the second ball pipe hoop connecting shaft 15 is installed in the installation through hole, two ends of the second ball pipe hoop connecting shaft respectively extend to the outside of the installation through hole and are connected through nut fastening, and the integral structure of the ball pipe hoop assembly 1 is more compact and is fixed firmly.
Specifically, as shown in fig. 1, 3 and 4, the bulb mounting mechanism assembly 2 includes a bulb mounting plate 21, a Z-direction adjusting plate 22, a ferrule mounting block 23, a third ferrule connecting shaft 24, a light outlet tungsten plate 25 and a lead shielding ray window 26; the X-ray tube is mounted on a bulb mounting plate 21; the third bulb collar connecting shaft 24 is mounted on the bulb mounting plate 21 through a collar mounting block 23, the light outlet tungsten plate 25 and the lead shielding ray window 26 are arranged right below the X-ray tube and are sequentially mounted on the bulb mounting plate 21, and the light outlet tungsten plate 25 and the lead shielding ray window 26 are preferably mounted on the bulb mounting plate 21 through screws; the Z-direction adjusting plate 22 is provided with a mounting groove, and the bulb mounting plate 21 is mounted in the mounting groove and has a mounting gap to realize horizontal movement of the X-ray tube in the X-axis direction, wherein the mounting gap can ensure that the bulb mounting plate 21 moves smoothly relative to the Z-direction adjusting plate 22 without being blocked.
Further, in a preferred embodiment, the movement of the bulb mounting plate 21 is by a helical linear motion of a screw mechanism to effect a horizontal movement of the X-ray tube in the X-direction. .
The Z-axis direction or the Z-direction referred to in the present invention is a direction parallel to the axial direction of the rotary substrate 5, and is also an axial direction of the Z-direction adjusting bolt 43 referred to in the present invention, and the X-axis direction or the X-direction referred to in the present invention is an axial direction of the X-direction bulb adjusting bolt 27, and a plane formed by the X-direction and the Z-direction is parallel to the upper plane and/or the lower plane of the light outlet tungsten plate 25.
Specifically, as shown in fig. 1, 3 and 4, the bulb mounting mechanism assembly 2 further includes an X-direction bulb adjusting bolt 27, a bulb X-direction adjusting fixed block 28, a bulb X-direction adjusting guide block 29, an X-direction outer adjusting bolt baffle 30 and an X-direction inner adjusting bolt baffle 31; the bulb X-direction adjusting guide block 29 is mounted on the bulb mounting plate 21, and the bulb X-direction adjusting fixed block 28, the X-direction outer adjusting bolt baffle 30 and the X-direction inner adjusting bolt baffle 31 on both sides are mounted on the Z-direction adjusting plate 22; an internally threaded hole is formed in the bulb X-direction adjusting guide block 29, and an external thread is formed on the X-direction bulb adjusting bolt 27; one end of the X-direction bulb adjusting bolt 27 provided with external threads is matched and mounted on an internal threaded hole of the bulb X-direction adjusting guide block 29, the other end of the X-direction bulb adjusting bolt 27 is a first operation end and sequentially passes through the X-direction inner adjusting bolt baffle 31, the bulb X-direction adjusting fixed block 28 and the X-direction outer adjusting bolt baffle 30 and extends to the outside of the X-direction outer adjusting bolt baffle 30; when the first operating end rotates the X-direction bulb adjusting bolt 27, the bulb X-direction adjusting guide block 29 drives the X-ray tube mounted on the bulb mounting plate 21 to move in a direction approaching or separating from the bulb X-direction adjusting fixing block 28, thereby realizing the movement of the X-ray tube in the X-axis direction.
Further, when the CT equipment rack rotor rotates at a high speed, centrifugal force received by each equipment and assembly is large, the X-direction outer side adjusting bolt baffle 30 and the X-direction inner side adjusting bolt baffle 31 can play a role in limiting the X-direction bulb adjusting bolt 27, and particularly, the X-direction bulb adjusting bolt 27 can be prevented from falling off, so that the CT equipment rack rotor is ingenious in structural design and high in practicability.
Specifically, as shown in fig. 1, the bulb mounting mechanism assembly 2 further includes two X-direction adjustment reticles 32; the two X-direction adjusting reticles 32 are disposed on two sides of the X-ray tube and are mounted on the Z-direction adjusting plate 22, when the X-direction adjusting reticles 32 are mounted, the central reticles of the X-direction adjusting reticles 32 are aligned with the reticles on the pipe hoop mounting block 23, and the X-direction adjusting reticles 32 are reticles with size functions, so that when the X-ray tube is moved and adjusted, the distance size of the X-ray tube moving in the X-direction can be judged through the positions of the reticles, further, the adjusting mechanism can be matched with a dial indicator for use when the precise adjustment is performed, the distance size of the X-ray tube moving in the X-direction can be fed back through reading the change of the indication of the dial indicator, or the distance size of the X-ray tube moving in the X-direction can be judged directly through the identification on the rotary screw without the dial indicator.
Specifically, as shown in fig. 1, 5, 6 and 7, the device further comprises two first Z-direction elastic limiting mechanisms 6; the two first Z-direction elastic limiting mechanisms 6 are arranged on two sides of the rotary substrate 5 along the X-axis direction; the first Z-direction elastic limit mechanism 6 comprises an end surface limit plate 61, a Z-direction limit mechanism top plate 62, a Z-direction limit score plate 63, a spring limit screw 64, a spring 65 and a Z-direction limit mechanism bottom plate 66; the bottom of the bottom plate 66 of the Z-direction limiting mechanism is mounted on the rotating substrate 5, the top plate 62 of the Z-direction limiting mechanism is mounted on the top of the bottom plate 66 of the Z-direction limiting mechanism, a second accommodating space and a third accommodating space are formed between the top plate 62 of the Z-direction limiting mechanism and the bottom plate 66 of the Z-direction limiting mechanism, and the end surface limiting plate 61 is mounted at one end, close to the second accommodating space, of the bottom plate 66 of the Z-direction limiting mechanism; one end of the spring limit screw 64 penetrates through the end face limit plate 61 and sequentially extends into the second accommodating space and the third accommodating space and is fixedly connected with one end of the Z-direction limit reticle 63 arranged in the third accommodating space, and the other end of the spring limit screw 64 is a free end, wherein the other end of the Z-direction limit reticle 63 extends to the outside of the third accommodating space and is connected with the Z-direction adjusting plate 22; the spring 65 is arranged in the second accommodating space and sleeved on the spring limit screw 64; when the Z-direction adjustment plate 22 moves in a direction away from the end surface limiting plate 61, the spring limiting screw 64 follows the movement of the Z-direction adjustment plate 22, and the other end of the spring limiting screw 64 compresses the spring 65 and limits the movement stroke of the Z-direction adjustment plate 22.
Further, in a preferred embodiment, as shown in fig. 7, the number of the spring limit screws 64 and the number of the springs 65 are two, the spring limit screws 64 comprise a T-shaped compression rod 641 and a T-shaped guide rod 642, the end face limit plate 61 is provided with a guide hole 611, the T-shaped compression rod 641 is provided with a blind hole with internal threads, the T-shaped guide rod 642 is provided with external threads, and one end of the T-shaped guide rod 642 provided with external threads passes through the guide hole 611 and is matched and installed in the blind hole with the internal threads.
Still further, the first Z-direction elastic limit mechanism 6 is used to position the initial installation position of the bulb, and at the same time, the adjustment position of the X-ray tube in the Z-direction can be fed back through the reticle on the alignment mechanism component when the adjustment is performed. In order to realize the precise adjustment of the X-ray tube in the Z direction, the distance size of the X-ray tube moving in the Z direction can be fed back by reading the indication change of the dial indicator, or the distance size of the X-ray tube moving in the Z direction can be judged directly through the identification on the Z direction adjusting bolt 43 without the dial indicator. The spring 65 can provide continuous elastic force for the Z-direction limiting reticle 63, so as to ensure that the Z-direction limiting reticle 63 is in contact with the X-ray tube Z-direction adjusting plate 22 at any time, and perform positioning and limiting functions.
Specifically, as shown in fig. 1 and 5, the device further comprises a second Z-direction elastic limiting mechanism 7; the second Z-direction elastic limiting mechanism 7 is arranged on the rotary base plate 5 and is in driving connection with the Z-direction adjusting plate 22.
Specifically, as shown in fig. 1 and 5, the second Z-direction elastic limiting mechanism 7 includes a Z-direction adjusting block 41, a Z-direction adjusting block connecting plate 42, a Z-direction adjusting bolt 43, and a Z-direction adjusting bolt baffle 44; the Z-direction adjusting block 41 is mounted on the Z-direction adjusting plate 22; one end of the Z-direction adjusting bolt 43 with threads sequentially passes through the Z-direction adjusting bolt baffle 44 and the Z-direction adjusting block connecting plate 42 and is in driving connection with the Z-direction adjusting block 41, and the other end of the Z-direction adjusting bolt 43 is a second operation end and a free end; when the second operation end is turned, the Z-direction adjusting bolt 43 turns and drives the Z-direction adjusting block 41 to drive the Z-direction adjusting plate 22 to move along the axial direction of the Z-direction adjusting bolt 43, wherein the Z-direction adjusting bolt baffle 44 is mounted on the Z-direction adjusting block connecting plate 42, the Z-direction adjusting block connecting plate 42 plays a role in fixing and supporting the Z-direction adjusting bolt 43 and provides an axially moving carrier for the Z-direction adjusting bolt 43, the Z-direction adjusting bolt baffle 44 plays a role in limiting the axial direction of the Z-direction adjusting bolt 43, and under the action of large centrifugal force when the rotor rotates at a high speed, the falling of the Z-direction adjusting bolt 43 can be effectively prevented, the structure is compact, the adjustment is simple, and the movement adjustment of the X-ray tube in the Z-direction is realized.
Specifically, a general X-ray tube does not have a fly-focus function, wherein the fly-focus function refers to a fly-focus multi-sector scanning technology, and in general, in a general X-ray tube, the relative position of an anode focus and a cathode is fixed, and the relative position between the anode focus and a projection area is also fixed, but in a fly-focus X-ray tube, the position of the anode focus on a tungsten target is shifted, the relative positions of the focus and the cathode and the projection area are continuously changed, and the moving speed of the focus is fast and can reach more than 600 times per second, so that the X-ray tube is called a fly-focus.
The structure of the invention adopts split design, the X-ray tube is positioned at the top of the rotor, the detector data acquisition system is positioned at the bottom of the rotor, the X-ray tube and the detector data acquisition system are placed at an angle of 180 degrees, the movable adjustment of the X-ray tube focus in the X direction and the Z direction is realized, the precise adjustment mechanism of the X-ray tube in the X direction and the Z direction can realize the high-precision alignment among the spherical tube focus, the anti-scattering grid and the detector data acquisition system, and the scattering of X-rays is reduced, thereby improving the quality of CT images.
In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a specific orientation, be configured and operated in a specific orientation, and are not to be construed as limiting the present application.
The foregoing describes specific embodiments of the present invention. It is to be understood that the invention is not limited to the particular embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without affecting the spirit of the invention. The embodiments of the present application and features in the embodiments may be combined with each other arbitrarily without conflict.
Claims (5)
1. The mechanism suitable for mounting and adjusting the X-ray tube of the CT equipment comprises the X-ray tube and is characterized by also comprising a ball pipe hoop assembly (1), a ball pipe mounting mechanism assembly (2) and a rotary base plate (5);
the lower part of the bulb tube installation mechanism assembly (2) is installed on the rotary substrate (5), and the upper part of the bulb tube installation mechanism assembly (2) is provided with an X-ray tube;
the bulb hoop component (1) is arranged at the upper part of the X-ray tube, the bulb hoop component (1) is fixedly connected with the bulb mounting mechanism component (2), the bulb hoop component (1) is of an arc-shaped structure, and the X-ray tube adopts a bulb;
the ball pipe hoop assembly (1) comprises a ball pipe hoop connecting metal plate (9), a ball pipe hoop (13), a first ball pipe hoop connecting shaft (14) and a second ball pipe hoop connecting shaft (15);
two symmetrical fixed connection holes extend from the ball pipe hoop (13), a first accommodating space is arranged between the two fixed connection holes, the ball pipe hoop connection metal plate (9) is arranged in the first accommodating space, and the first ball pipe hoop connection shaft (14) sequentially penetrates through the first fixed connection hole, the ball pipe hoop connection metal plate (9) and the second fixed connection hole, and two ends of the ball pipe hoop connection metal plate are fastened through nuts; the ball pipe hoop (13) is provided with a mounting through hole, the second ball pipe hoop connecting shaft (15) is arranged in the mounting through hole, and two ends of the second ball pipe hoop connecting shaft respectively extend to the outside of the mounting through hole and are fastened and connected through nuts;
the bulb mounting mechanism assembly (2) comprises a bulb mounting plate (21), a Z-direction adjusting plate (22), a pipe hoop mounting block (23), a third bulb hoop connecting shaft (24), a light outlet tungsten plate (25), a lead shielding ray window (26), an X-direction bulb adjusting bolt (27), a bulb X-direction adjusting fixed block (28), a bulb X-direction adjusting guide block (29), an X-direction outer adjusting bolt baffle (30) and an X-direction inner adjusting bolt baffle (31);
the X-ray tube is arranged on a bulb tube mounting plate (21); the third ball pipe hoop connecting shaft (24) is arranged on the ball pipe mounting plate (21) through a pipe hoop mounting block (23); the light outlet tungsten plate (25) and the lead shielding ray window (26) are arranged right below the X-ray tube and are sequentially arranged on the bulb tube mounting plate (21);
the Z-direction adjusting plate (22) is provided with an installation groove, the bulb tube installing plate (21) is installed in the installation groove, an installation gap exists between the bulb tube installing plate and the installation groove, so that the horizontal movement of the X-ray tube in the X direction is realized, and the bulb tube X-direction adjusting guide block (29) is installed on the bulb tube installing plate (21);
the bulb X-direction adjusting fixed block (28), the X-direction outer adjusting bolt baffle plates (30) and the X-direction inner adjusting bolt baffle plates (31) on the two sides are all arranged on the Z-direction adjusting plate (22);
an internally threaded hole is formed in the bulb tube X-direction adjusting guide block (29), and an external thread is formed on the X-direction bulb tube adjusting bolt (27); one end, provided with external threads, of the X-direction bulb adjusting bolt (27) is matched and installed on an internal threaded hole of a bulb X-direction adjusting guide block (29), the other end of the X-direction bulb adjusting bolt (27) is a first operation end, sequentially penetrates through an X-direction inner side adjusting bolt baffle (31), a bulb X-direction adjusting fixed block (28) and an X-direction outer side adjusting bolt baffle (30) and extends to the outside of the X-direction outer side adjusting bolt baffle (30);
when the bulb tube adjusting bolt (27) in the X direction is rotated, the bulb tube X direction adjusting guide block (29) moves towards a direction approaching or separating from the bulb tube X direction adjusting fixed block (28);
the device also comprises two first Z-direction elastic limiting mechanisms (6) and a second Z-direction elastic limiting mechanism (7);
the two first Z-direction elastic limiting mechanisms (6) are arranged on two sides of the rotary substrate (5) along the X direction;
the two first Z-direction elastic limiting mechanisms (6) are respectively connected with the Z-direction adjusting plate (22), and when the Z-direction adjusting plate (22) moves along the Z-direction, the two first Z-direction elastic limiting mechanisms (6) limit the movement stroke of the Z-direction adjusting plate (22);
the second Z-direction elastic limiting mechanism (7) is arranged on the rotary base plate (5) and is in driving connection with the Z-direction adjusting plate (22).
2. The mechanism for mounting and adjusting an X-ray tube of a CT apparatus according to claim 1, further comprising a bulb mounting spacer (3), a bulb mounting bracket fixing block (4) and a bulb hoop spacer (10);
a bulb hoop gasket (10) is arranged between the bulb hoop assembly (1) and the bulb installation mechanism assembly (2);
the bulb tube installation mechanism assembly (2) is installed on the rotary base plate (5) through a screw, and a bulb tube installation gasket (3) is sleeved on the screw;
two sides of the bulb tube installation mechanism assembly (2) are respectively provided with a bulb tube installation frame fixing block (4).
3. The mechanism for mounting and adjusting an X-ray tube of a CT apparatus according to claim 1, wherein said bulb mounting mechanism assembly (2) further comprises two X-direction adjustment reticles (32);
the two X-direction adjustment reticles (32) are arranged on both sides of the X-ray tube and are mounted on the Z-direction adjustment plate (22).
4. The mechanism for mounting and adjusting an X-ray tube of a CT apparatus according to claim 1, wherein the first Z-direction elastic limit mechanism (6) comprises an end surface limit plate (61), a Z-direction limit mechanism top plate (62), a Z-direction limit reticle (63), a spring limit screw (64), a spring (65), and a Z-direction limit mechanism bottom plate (66);
the bottom of the Z-direction limiting mechanism bottom plate (66) is arranged on the rotary substrate (5), the Z-direction limiting mechanism top plate (62) is arranged on the top of the Z-direction limiting mechanism bottom plate (66), and a second accommodating space and a third accommodating space are formed between the Z-direction limiting mechanism top plate (62) and the Z-direction limiting mechanism bottom plate (66);
the end face limiting plate (61) is arranged at one end, close to the second accommodating space, of the bottom plate (66) of the Z-direction limiting mechanism;
one end of the spring limit screw (64) penetrates through the end face limit plate (61) and sequentially extends into the second accommodating space and the third accommodating space and is fixedly connected with one end of the Z-direction limit reticle (63) arranged in the third accommodating space, the other end of the spring limit screw (64) is a free end, and the other end of the Z-direction limit reticle (63) extends to the outside of the third accommodating space and is connected with the Z-direction adjusting plate (22);
the spring (65) is arranged in the second accommodating space and sleeved on the spring limit screw (64);
when the Z-direction adjusting plate (22) moves in a direction away from the end face limiting plate (61), the spring limiting screw (64) moves along with the Z-direction adjusting plate (22), and the other end of the spring limiting screw (64) compresses the spring (65) and limits the movement stroke of the Z-direction adjusting plate (22).
5. The mechanism for mounting and adjusting an X-ray tube of a CT apparatus according to claim 1, wherein the second Z-direction elastic limit mechanism (7) comprises a Z-direction adjustment block (41), a Z-direction adjustment block connecting plate (42), a Z-direction adjustment bolt (43), and a Z-direction adjustment bolt baffle (44);
the Z-direction adjusting block (41) is arranged on the Z-direction adjusting plate (22);
one end of the Z-direction adjusting bolt (43) with threads sequentially penetrates through the Z-direction adjusting bolt baffle (44) and the Z-direction adjusting block connecting plate (42) and is in driving connection with the Z-direction adjusting block (41), and the other end of the Z-direction adjusting bolt (43) is a second operation end and a free end;
when the second operation end is rotated, the Z-direction adjusting bolt (43) rotates and drives the Z-direction adjusting block (41) to drive the Z-direction adjusting plate (22) to move along the axial direction of the Z-direction adjusting bolt (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010251609.1A CN111419259B (en) | 2020-04-01 | 2020-04-01 | Mechanism suitable for installation and adjustment of X-ray tube of CT equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010251609.1A CN111419259B (en) | 2020-04-01 | 2020-04-01 | Mechanism suitable for installation and adjustment of X-ray tube of CT equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111419259A CN111419259A (en) | 2020-07-17 |
| CN111419259B true CN111419259B (en) | 2023-05-02 |
Family
ID=71551930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010251609.1A Active CN111419259B (en) | 2020-04-01 | 2020-04-01 | Mechanism suitable for installation and adjustment of X-ray tube of CT equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111419259B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6289073B1 (en) * | 1997-10-23 | 2001-09-11 | Kabushiki Kaisha Toshiba | X-ray CT apparatus |
| JP2004357724A (en) * | 2003-05-30 | 2004-12-24 | Toshiba Corp | X-ray ct apparatus, x-ray generating apparatus, and data collecting method of x-ray ct apparatus |
| CN109199425A (en) * | 2018-09-29 | 2019-01-15 | 天津金曦医疗设备有限公司 | A kind of mobile plate CT imaging system for the detection of brain soft tissue |
| WO2019185496A1 (en) * | 2018-03-27 | 2019-10-03 | Koninklijke Philips N.V. | Device, system and method for controlling a position of an anti-scatter grid in an x-ray image acquisition system |
| CN209574723U (en) * | 2018-12-17 | 2019-11-05 | 飞利浦(中国)投资有限公司 | Bulb pedestal and computer tomography device |
| CN110913549A (en) * | 2019-11-27 | 2020-03-24 | 明峰医疗***股份有限公司 | CT bulb tube accurate adjustment device and adjustment method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1762177B1 (en) * | 2005-09-08 | 2014-11-05 | Kabushiki Kaisha Toshiba | X-ray computed tomographic apparatus |
| WO2014169059A1 (en) * | 2013-04-09 | 2014-10-16 | Neurologica Corp. | Computerized tomography (ct) imaging system with improved x-ray tube mount |
-
2020
- 2020-04-01 CN CN202010251609.1A patent/CN111419259B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6289073B1 (en) * | 1997-10-23 | 2001-09-11 | Kabushiki Kaisha Toshiba | X-ray CT apparatus |
| JP2004357724A (en) * | 2003-05-30 | 2004-12-24 | Toshiba Corp | X-ray ct apparatus, x-ray generating apparatus, and data collecting method of x-ray ct apparatus |
| WO2019185496A1 (en) * | 2018-03-27 | 2019-10-03 | Koninklijke Philips N.V. | Device, system and method for controlling a position of an anti-scatter grid in an x-ray image acquisition system |
| CN109199425A (en) * | 2018-09-29 | 2019-01-15 | 天津金曦医疗设备有限公司 | A kind of mobile plate CT imaging system for the detection of brain soft tissue |
| CN209574723U (en) * | 2018-12-17 | 2019-11-05 | 飞利浦(中国)投资有限公司 | Bulb pedestal and computer tomography device |
| CN110913549A (en) * | 2019-11-27 | 2020-03-24 | 明峰医疗***股份有限公司 | CT bulb tube accurate adjustment device and adjustment method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111419259A (en) | 2020-07-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2849649B1 (en) | X-ray detector with manipulation unit for movement of detector modules on a circle | |
| CN111419259B (en) | Mechanism suitable for installation and adjustment of X-ray tube of CT equipment | |
| CN201868118U (en) | X-ray collimator | |
| CN219678753U (en) | Precise swing adjusting device suitable for X-ray source | |
| EP4075124A1 (en) | Adjustment and positioning device and method for ray source assembly, and radiation scan imaging apparatus | |
| US20190101496A1 (en) | Radiation phase contrast imaging apparatus | |
| CN210441900U (en) | Accurate adjusting device in bulb position | |
| CN213372075U (en) | X-ray beam limiter and X-ray detection equipment | |
| CN209107384U (en) | A kind of CT collimator piece cutting structure and CT scan system | |
| CN210722489U (en) | Filter driving and adjusting device of CT collimator | |
| JP2016517757A (en) | Alignment of imaging system rotating components with isocenter | |
| JP2023542698A (en) | Single drive positioning system and method and mass spectrometry system including the system and method | |
| CN207473172U (en) | A kind of screw thread focus control | |
| CN112666193A (en) | Industrial online CT radiation shielding device and CT detection equipment | |
| CN100545641C (en) | A kind of ray detecting device | |
| CN108635683B (en) | Mounting seat assembly for mounting optical distance ruler and optical distance ruler device | |
| CN219147631U (en) | Detector deflection adjusting device, position adjusting system and CT device | |
| CN112666671A (en) | Cylindrical lens support and cylindrical lens adjusting method | |
| CN217931442U (en) | Position adjusting mechanism and device for optical lens | |
| CN111631747B (en) | CT front collimator with adjusting mechanism | |
| CN206061419U (en) | A kind of module position detection means | |
| CN211294648U (en) | Adjustable combined and overlapped surface collimator | |
| CN101144965A (en) | Adjusting board and adjusting device for radiation photography detector camera device | |
| CN219571392U (en) | Mass spectrometer device with adjustable angle | |
| CN220357302U (en) | Direct-drive differential precise thread adjusting mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |