WO2021238720A1 - 用于ct检测装置的锁定组件和ct检测装置 - Google Patents

用于ct检测装置的锁定组件和ct检测装置 Download PDF

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Publication number
WO2021238720A1
WO2021238720A1 PCT/CN2021/094357 CN2021094357W WO2021238720A1 WO 2021238720 A1 WO2021238720 A1 WO 2021238720A1 CN 2021094357 W CN2021094357 W CN 2021094357W WO 2021238720 A1 WO2021238720 A1 WO 2021238720A1
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WIPO (PCT)
Prior art keywords
hole
cylindrical portion
sleeve
rotating frame
pin
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PCT/CN2021/094357
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English (en)
French (fr)
Inventor
张丽
洪明志
王子楠
黄清萍
张立国
Original Assignee
清华大学
同方威视技术股份有限公司
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Application filed by 清华大学, 同方威视技术股份有限公司 filed Critical 清华大学
Priority to EP21812364.4A priority Critical patent/EP4159134A1/en
Priority to JP2022573617A priority patent/JP2023527241A/ja
Publication of WO2021238720A1 publication Critical patent/WO2021238720A1/zh

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    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
    • G01N23/046—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]

Definitions

  • the present disclosure relates to the field of detection technology, in particular to a locking assembly used for a CT detection device and a CT detection device.
  • the radiation source and the detector are mounted on a rotating frame, and the rotating frame is mounted on a support frame through a slip ring bearing and can rotate around its central axis, thereby realizing tomography.
  • the rotating frame and the components installed on it are collectively referred to as a CT imaging system.
  • the rotating frame is fixed on the support frame through slip ring bearings, and is driven to rotate by multiple motors.
  • the rotation movement of the CT imaging system is used to achieve imaging. Because the CT imaging system has a complex composition, a relatively large volume, and a large mass, the center of gravity and the center of rotation do not coincide. Therefore, when the detection device is repaired, the CT imaging system cannot be stopped at any angle, and an auxiliary locking device needs to be added to lock the CT imaging system to facilitate the maintenance of the detection device.
  • the CT imaging system needs to be kept in the original position so that the new slip ring bearing can be installed on the support frame. The CT imaging system should be restored as soon as possible, so it is necessary to design a locking mechanism of the CT imaging system.
  • the CT imaging system when repairing the CT inspection device, it is desirable that the CT imaging system can be stopped at an arbitrary angle position. Moreover, when replacing the slip ring bearing, it is desirable to keep the CT imaging system in the original position after disassembling the old slip ring bearing in order to simplify the maintenance work.
  • the present disclosure aims to solve at least one aspect of the above-mentioned problems.
  • a CT detection device including: a CT imaging system, including a radiation source, a detector, and a rotating frame, the radiation source and the detector being mounted on the rotating frame, and the rotating frame At least one first hole is provided on the periphery of the support frame, the rotating frame is fixed on the support frame through a slip ring bearing, and the periphery of the support frame is provided with at least one first hole aligned At least one second hole; a first sleeve, detachably engaged in the aligned first and second holes, the first sleeve includes a first mating part, the first mating part It cooperates with the first locking part to lock the rotating frame when the slip ring bearing is replaced.
  • the first sleeve includes a first cylindrical portion engaged with the first hole and a second cylindrical portion engaged with the second hole, the first barrel
  • the outer surface of the shaped portion and the inner surface of the first hole are provided with threads; and/or the outer surface of the second cylindrical portion and the inner surface of the second hole are provided with threads.
  • the diameter of the first cylindrical portion is smaller than the diameter of the second cylindrical portion, and the first cylindrical portion and the second cylindrical portion are connected by a step;
  • the diameter of one hole is smaller than the diameter of the second hole.
  • the first mating portion is formed as a thread on the inner surface of the first cylindrical portion or on the inner surfaces of the first cylindrical portion and the second cylindrical portion
  • the first locking part is formed as a screw.
  • the at least one first hole includes a plurality of first holes evenly distributed on the periphery of the rotating frame; and the at least one second hole includes a plurality of first holes evenly distributed on the support A plurality of second holes on the periphery of the accommodating cavity of the rack, and the rotating frame is installed in the accommodating cavity.
  • the terminal end surface of the first sleeve is a positioning surface.
  • the CT detection device further includes a second sleeve configured to be removed from the first hole and the second hole after the first sleeve In this case, it is detachably engaged in the second hole and includes a second mating part, and the second mating part, the first hole and the second locking part are matched to be used when the CT inspection device is repaired. Lock the rotating frame.
  • the outer surface of the second sleeve and the inner surface of the second hole include threads.
  • the second mating portion is formed as a pin hole inside the second sleeve
  • the second locking portion is formed as a pin
  • the pin is inserted into the first hole and In the pin hole inside the second sleeve.
  • the inner diameters of the pin hole and the first hole are substantially equal to the outer diameter of the pin.
  • the first mating portion is formed as a thread on the inner surface of the first cylindrical portion or on the inner surfaces of the first cylindrical portion and the second cylindrical portion
  • the first locking portion is formed as a pin, and the pin is inserted into the first hole and the first mating portion to lock the rotating frame when the CT inspection device is repaired.
  • a lock assembly for a CT inspection device comprising a support frame fixed together by a slip ring bearing and a rotating frame of the CT imaging system, the lock assembly including : At least one first hole provided on the rotating frame; at least one second hole provided on the support frame, configured to be aligned with the at least one first hole; a first sleeve, Detachably engaged in the aligned first and second holes, the first sleeve includes a first mating part; a first locking part that cooperates with the first mating part to replace the sliding The rotating frame is locked when the ring bearing is used.
  • the first sleeve further includes a first cylindrical portion engaged with the first hole and a second cylindrical portion engaged with the second hole, the first The outer surface of the cylindrical portion and the inner surface of the first hole are provided with threads; and/or the outer surface of the second cylindrical portion and the inner surface of the second hole are provided with threads.
  • the diameter of the first cylindrical portion is smaller than the diameter of the second cylindrical portion, and the first cylindrical portion and the second cylindrical portion are connected by a step;
  • the diameter of one hole is smaller than the diameter of the second hole.
  • the first mating portion is formed as a thread on the inner surface of the first cylindrical portion or the inner surfaces of the first cylindrical portion and the second cylindrical portion
  • the first locking portion is formed as a screw
  • the end surface of the first sleeve is a positioning surface.
  • the at least one first hole includes a plurality of the first holes evenly distributed on the periphery of the rotating frame; and the at least one second hole includes a plurality of evenly distributed on the periphery of the rotating frame; The plurality of second holes on the periphery of the accommodating cavity of the support frame, and the rotating frame is installed in the accommodating cavity.
  • the locking assembly further includes a second sleeve configured to be removed from the first hole and the second hole when the first sleeve is removed from the first hole and the second hole.
  • the lower part is detachably engaged in the second hole and includes a second mating part, the second mating part, the first hole and the second locking part are matched to be locked when the CT detection device is repaired The rotating frame.
  • the outer surface of the second sleeve and the inner surface of the second hole include threads.
  • the second mating portion is formed as a pin hole inside the second sleeve
  • the second locking portion is formed as a pin
  • the pin is inserted into the first hole and In the pin hole inside the second sleeve, the inner diameters of the pin hole and the first hole are approximately equal to the outer diameter of the pin.
  • the first mating portion is formed as a thread on the inner surface of the first cylindrical portion or the inner surfaces of the first cylindrical portion and the second cylindrical portion
  • the first locking portion is formed as a pin, and the pin is inserted into the first hole and the first mating portion to lock the rotating frame when the CT detection device is repaired.
  • Fig. 1 shows a CT detection device according to an embodiment of the present disclosure
  • Figure 2 shows a rotating frame according to an embodiment of the present disclosure
  • Figure 3 shows a support frame according to an embodiment of the present disclosure
  • Figure 4 shows a first sleeve according to an embodiment of the present disclosure
  • Figure 5 shows a second sleeve according to an embodiment of the present disclosure
  • FIG. 6 shows a partial cross-sectional view of the CT detection device according to an embodiment of the present disclosure, wherein the CT detection device is in a maintenance state;
  • FIG. 7 shows a partial cross-sectional view of the CT inspection device according to an embodiment of the present disclosure, wherein the CT inspection device is in a state of replacing the slip ring bearing.
  • a cylindrical pin hole is provided on both sides of the support frame, and several cylindrical pin holes are provided on the circumference of the rotating frame.
  • the locking mechanism of the above embodiment can realize the locking required when repairing the CT detection device and replacing the slip ring bearing, the disadvantage of the above solution lies in the large workload of parts processing, large space occupation, and high cost.
  • the fixed block needs to be stored for a long time because it is used less frequently and has a large volume, so it occupies a large space during storage.
  • an embodiment of the present disclosure provides a CT detection apparatus 100, which includes a CT imaging system 110, a support frame 120, and a first sleeve 130.
  • the CT imaging system 110 includes a radiation source, a detector, and a rotating frame 111, and the radiation source and the detector are installed on the rotating frame 111.
  • At least one first hole 112 is provided on the periphery of the rotating frame 111.
  • the rotating frame 111 is fixed on the support frame 120 through a slip ring bearing.
  • At least one second hole 122 aligned with the at least one first hole 112 is provided on the periphery of the support frame 120.
  • the first sleeve 130 When the at least one first hole 112 is aligned with the at least one second hole 122, the first sleeve 130 is detachably engaged in the aligned first hole 112 and the second hole 122. As shown in FIGS. 4 and 7, the first sleeve 130 includes a first mating part 133 that cooperates with the first locking part 150 to lock the rotating frame 111 when the slip ring bearing is replaced. In this way, the described embodiment uses a small number of parts and structures to realize the locking of the rotating frame when replacing the slip ring bearing, thereby simplifying the maintenance work.
  • the radiation source provides rays for detecting the object, for example, one or more of X-rays, gamma ( ⁇ ) rays, and neutron rays.
  • the radiation source may be, for example, an accelerator, an isotope source, or an X-ray machine.
  • the detector is configured to be able to detect the rays emitted from the radiation source.
  • the rotating frame 111 includes a plurality of first holes 112, and the plurality of first holes 112 are evenly distributed on the periphery of the rotating frame 111.
  • the support frame 120 includes a receiving cavity 121, and the rotating frame 111 is installed in the receiving cavity 121.
  • the support frame 120 includes a plurality of second holes 122, and the plurality of second holes 122 are evenly distributed on the periphery of the receiving cavity 121.
  • the examples shown in Figs. 2 and 3 are only illustrative, and those skilled in the art can adjust the number and positions of the first holes and the second holes as needed.
  • the first sleeve 130 includes a first cylindrical portion 131 and a second cylindrical portion 132.
  • the first cylindrical portion 131 is engaged with the first hole 112, and the second cylindrical portion 132 is engaged with the second hole 122.
  • the outer surface of the second cylindrical portion 132 is provided with external threads
  • the inner surface of the second hole 122 is provided with internal threads, so that the second cylindrical portion 132 and the second hole 122 are fitted together by means of threads.
  • the outer surface of the first cylindrical portion 131 is provided with external threads
  • the inner surface of the first hole 112 is provided with internal threads, so that the first cylindrical portion 131 and the first hole 112 are threaded together.
  • a person skilled in the art can provide an external thread on one or both of the two cylindrical parts as needed to cooperate with the internal thread in the corresponding hole.
  • the diameter of the first cylindrical portion 131 is smaller than the diameter of the second cylindrical portion 132.
  • the first sleeve 130 further includes a step 134 connecting the first sleeve part 131 and the second sleeve part 132.
  • threads are provided on the inner surface of the first cylindrical portion 131 to form a first mating part 133, and the first mating part 133 cooperates with the first locking part 150 (such as a screw) to lock the rotating frame.
  • first locking part 150 such as a screw
  • the solution of the present disclosure uses a first locking part, such as a screw, which has a simple structure and a small volume, which reduces the workload of parts processing and the space occupied by the locking assembly compared with the fixed block, thereby allowing the size of the rotating frame to be reduced. small.
  • first cylindrical portion 131 and the second cylindrical portion 131 may both be provided with threads. Accordingly, the first locking portion 150 is simultaneously connected to the first cylindrical portion and the second cylindrical portion 131. The threads on the inner surfaces of the two parts cooperate to achieve locking.
  • Those skilled in the art can select a specific setting method according to needs.
  • the first sleeve 130 when the slip ring bearing needs to be replaced, the first sleeve 130 is installed in the first hole 112 and the second hole 122, and then the rotating frame 111 is rotated to a suitable position. At this time, the first sleeve 130 The end of the rod is in contact with the surface of the rotating frame 111 in the normal operating position, and then the first locking part 150 cooperates with the first mating part 133 to achieve locking. In this situation, the end of the first sleeve is formed as a positioning surface to ensure that the position of the rotating frame is the same as the position during normal operation.
  • the embodiment of the present disclosure integrates the two sets of locking components used in the two situations of replacing slip ring bearings and repairing the CT inspection device into a set of locking components, so that it can be used in different application scenarios with a smaller number of parts and structures. Under the lock-in demand for CT imaging system. Moreover, the embodiments of the present disclosure can realize the locking function conveniently and quickly, the parts are small in size, and they are easy to store. Those skilled in the art can understand that when the CT detection device needs to be repaired, another locking part different from the first locking part, such as a pin, can also be used.
  • the CT inspection apparatus 100 further includes a second sleeve 140 configured to be used in cooperation with the second hole 122.
  • the outer surface of the second sleeve 140 is provided with external threads, and the inner surface of the second hole 122 is provided with internal threads, so that the second sleeve 140 is installed in the second hole 122 by means of threads.
  • the second sleeve 140 includes a second mating part 141 that cooperates with the second locking part 160 to lock the rotating frame 111 when the CT inspection apparatus 100 is repaired.
  • a pin hole is formed inside the second sleeve 140, and the pin hole forms a second fitting portion 141 to be fitted with the second locking portion 160 (such as a pin).
  • a pin is inserted into the first hole 112 and the pin hole inside the second sleeve 140, so that the rotating frame 111 is stopped at a desired position.
  • the inner diameter of the pin hole and the first hole 112 is substantially equal to the outer diameter of the pin.
  • a threaded hole may be formed in the inside of the second sleeve 140, and the threaded hole forms a second mating part for mating with a second locking part (such as a screw).
  • the second sleeve 140 may be located in the second hole 122 when the CT inspection apparatus 100 is working normally.
  • the second locking part is inserted into the second mating part to realize the fixation of the rotating frame 111.
  • the slip ring bearing needs to be replaced, as shown in Figure 7, remove the second sleeve 140 from the second hole 122, and then install the first sleeve 130 in the second hole 122 and the first hole 112, and then Then install the first locking part to lock the rotating frame 111.
  • the embodiments of the present disclosure realize the locking requirements of the CT imaging system in different application scenarios with a small number of parts and structures, and can conveniently and quickly realize the locking function.
  • both the first sleeve and the second sleeve can be modified from screws, for example, modified from finished hexagonal round heads, thereby reducing costs and reducing the workload of parts processing.

Abstract

一种CT检测装置(100)和用于CT检测装置(100)的锁定组件。该CT检测装置(100)包括：CT成像系统(110)，包括辐射源、探测器和旋转框架(111)，辐射源和探测器安装在旋转框架(111)上，旋转框架(111)的周边上设置有至少一个第一孔(112)；支撑架(120)，旋转框架(111)通过滑环轴承固定在支撑架(120)上，支撑架(120)的周边上设置有与至少一个第一孔(112)对准的至少一个第二孔(122)；第一套筒(130)，以可拆卸的方式接合在对准的第一孔(112)和第二孔(122)内，第一套筒(130)包括第一配合部(133)，第一配合部(133)与第一锁定部(150)配合以在更换滑环轴承时锁定旋转框架(111)。

Description

用于CT检测装置的锁定组件和CT检测装置 技术领域
本公开涉及一种检测技术领域，具体涉及一种用于CT检测装置的锁定组件和CT检测装置。
背景技术
在现有的CT检测装置中，辐射源和探测器安装在旋转框架上，该旋转框架通过滑环轴承安装在支撑架上并可围绕其中心轴线旋转，从而实现断层扫描。所述旋转框架和安装在其上的部件统称为CT成像系统。
旋转框架通过滑环轴承固定在支撑架上，通过多电机带动旋转。当CT检测装置工作时，利用CT成像系统的旋转运动实现成像。因为CT成像系统组成复杂，体积比较大，质量也很大，重心和旋转中心不重合。因此在检测装置维修时，CT成像系统无法停止在任意角度的位置，需要增加辅助锁定装置锁定CT成像系统，以方便检测装置维修。另外，在更换滑环轴承时，为了简化维修工作量，在滑环轴承和CT成像系统分离开后，需要保持CT成像系统在原始位置，以便更换新的滑环轴承安装到支撑架上后可以尽快将CT成像系统恢复，因此需要设计有CT成像系统的锁定机构。
发明内容
因此，在本公开中，在维修CT检测装置时，期望CT成像系统能够停止在任意角度的位置。而且，在更换滑环轴承时，期望在拆卸旧的滑环轴承后保持CT成像系统在原始位置，以便简化维修工作。
因此，本公开旨在解决上述问题中的至少一个方面。
根据本公开的一个方面，提供了一种CT检测装置，包括：CT成像系统，包括辐射源、探测器和旋转框架，所述辐射源和探测器安装在所述旋转框架上，所述旋转框架的周边上设置有至少一个第一孔；支撑架，所述旋转框架通过滑环轴承固定在所述支撑架上，所述支撑架的周边上设置有与至少一个所述第一孔对准的至少一个第二孔；第一套筒，以可拆卸的方式接合在对准的所述第一孔和第二孔内，所述第一套筒包括第一配合部，所述第一配合部与第一锁定部配合以在更换所述滑环轴承时锁定所述旋 转框架。
根据本公开的一个示例性实施例，所述第一套筒包括与所述第一孔接合的第一筒形部分和与所述第二孔接合的第二筒形部分，所述第一筒形部分的外表面和所述第一孔的内表面设置有螺纹；和/或所述第二筒形部分的外表面和所述第二孔的内表面设置有螺纹。
根据本公开的一个示例性实施例，所述第一筒形部分的直径小于所述第二筒形部分的直径，所述第一筒形部分和第二筒形部分由台阶相连；所述第一孔的直径小于所述第二孔的直径。
根据本公开的一个示例性实施例，所述第一配合部形成为在所述第一筒形部分的内表面上的螺纹或所述第一筒形部分和第二筒形部分的内表面上的螺纹，所述第一锁定部形成为螺钉。
根据本公开的一个示例性实施例，所述至少一个第一孔包括均匀分布在所述旋转框架的周边上的多个第一孔；和所述至少一个第二孔包括均匀分布在所述支撑架的容纳腔的周边上的多个第二孔，所述旋转框架安装在所述容纳腔中。
根据本公开的一个示例性实施例，所述第一套筒的末端端面为定位面。
根据本公开的一个示例性实施例，所述CT检测装置还包括第二套筒，所述第二套筒配置成在所述第一套筒从所述第一孔和第二孔移除的情况下以可拆卸的方式接合在所述第二孔内并包括第二配合部，所述第二配合部、所述第一孔与第二锁定部配合，以在维修所述CT检测装置时锁定所述旋转框架。
根据本公开的一个示例性实施例，所述第二套筒的外表面和所述第二孔的内表面包括螺纹。
根据本公开的一个示例性实施例，所述第二配合部形成为所述第二套筒内部的销孔，所述第二锁定部形成为销，所述销插入到所述第一孔和所述第二套筒内部的销孔中。
根据本公开的一个示例性实施例，所述销孔和所述第一孔的内径大致等于所述销的外径。
根据本公开的一个示例性实施例，所述第一配合部形成为在所述第一筒形部分的内表面上的螺纹或所述第一筒形部分和第二筒形部分的内表 面上的螺纹，所述第一锁定部形成为销，所述销插入到所述第一孔和所述第一配合部中，以在维修所述CT检测装置时锁定所述旋转框架。
根据本公开的另一方面，提供了一种用于CT检测装置的锁定组件，所述CT检测装置包括通过滑环轴承固定在一起的支撑架和CT成像系统的旋转框架，所述锁定组件包括：设置在所述旋转框架上的至少一个第一孔；设置在所述支撑架上的至少一个第二孔，配置成能够与至少一个所述第一孔对准；第一套筒，以可拆卸的方式接合在对准的所述第一孔和第二孔内，所述第一套筒包括第一配合部；第一锁定部，与所述第一配合部配合以在更换所述滑环轴承时锁定所述旋转框架。
根据本公开的一个示例性实施例，所述第一套筒还包括与所述第一孔接合的第一筒形部分和与所述第二孔接合的第二筒形部分，所述第一筒形部分的外表面和所述第一孔的内表面设置有螺纹；和/或所述第二筒形部分的外表面和所述第二孔的内表面设置有螺纹。
根据本公开的一个示例性实施例，所述第一筒形部分的直径小于所述第二筒形部分的直径，所述第一筒形部分和第二筒形部分由台阶相连；所述第一孔的直径小于所述第二孔的直径。
根据本公开的一个示例性实施例，所述第一配合部形成为在所述第一筒形部分的内表面上或所述第一筒形部分和第二筒形部分的内表面上的螺纹，所述第一锁定部形成为螺钉，所述第一套筒的末端端面为定位面。
根据本公开的一个示例性实施例，所述至少一个第一孔包括均匀分布在所述旋转框架的周边上的多个所述第一孔；和所述至少一个第二孔包括均匀分布在所述支撑架的容纳腔的周边上的多个所述第二孔，所述旋转框架安装在所述容纳腔中。
根据本公开的一个示例性实施例，所述锁定组件还包括第二套筒，所述第二套筒配置成在所述第一套筒从所述第一孔和第二孔移除的情况下以可拆卸的方式接合在所述第二孔内并包括第二配合部，所述第二配合部、所述第一孔与第二锁定部配合，以在维修所述CT检测装置时锁定所述旋转框架。
根据本公开的一个示例性实施例，所述第二套筒的外表面和所述第二孔的内表面包括螺纹。
根据本公开的一个示例性实施例，所述第二配合部形成为所述第二套筒内部的销孔，所述第二锁定部形成为销，所述销插入到所述第一孔和所述第二套筒内部的销孔中，所述销孔和所述第一孔的内径大致等于所述销的外径。
根据本公开的一个示例性实施例，所述第一配合部形成为在所述第一筒形部分的内表面上或所述第一筒形部分和第二筒形部分的内表面上的螺纹，所述第一锁定部形成为销，所述销插入到所述第一孔和所述第一配合部中，以在维修所述CT检测装置时锁定所述旋转框架。
附图说明
通过下文中参照附图对本公开所作的描述，本公开的其它目的和优点将显而易见，并可帮助对本公开有全面的理解。在附图中：
图1示出了根据本公开的实施例的CT检测装置；
图2示出了根据本公开的实施例的旋转框架；
图3示出了根据本公开的实施例的支撑架；
图4示出了根据本公开的实施例的第一套筒；
图5示出了根据本公开的实施例的第二套筒；
图6示出了根据本公开的实施例的CT检测装置的部分截面图，其中CT检测装置处于维修状态；和
图7示出了根据本公开的实施例的CT检测装置的部分截面图，其中CT检测装置处于更换滑环轴承的状态。
具体实施方式
下面通过实施例，并结合附图，对本公开的技术方案作进一步具体的说明。在说明书中，相同或相似的附图标号指示相同或相似的部件。下述参照附图对本公开实施方式的说明旨在对本公开的总体发明构思进行解释，而不应当理解为对本公开的一种限制。
另外，在下面的详细描述中，为便于解释，阐述了许多具体的细节以提供对本披露实施例的全面理解。然而明显地，一个或多个实施例在没有这些具体细节的情况下也可以被实施。在其他情况下，公知的结构和装置以图示的方式体现以简化附图。
在本公开的一个实施例中，当维修CT检测装置时，在支撑架的两侧 各设置一个圆柱销孔，在旋转框架的圆周上设置几个圆柱销孔，当CT成像系统旋转到合适的位置时，使用一个圆柱销同时穿过旋转框架和支撑架上的圆柱销孔，从而利用圆柱销将旋转框架固定在期望的位置；当更换滑环轴承时，在支撑架上安装两个固定块，并将固定块的另一端固定在旋转框架上。
尽管上述实施方式的锁定机构可以实现维修CT检测装置和更换滑环轴承时所需的锁定，但是，上述方案的不足在于：零件加工工作量大，占用的空间大，成本高。固定块作为随机的附件，由于使用次数少，却需要长期保存，体积大，故保存时占用的空间大。
针对上述不足中的至少一方面，本公开的另一实施例提供了改进的方案。下面结合附图对本公开进行更为详细的阐述。
如图1-4所示，本公开的实施例提供一种CT检测装置100，包括CT成像系统110、支撑架120和第一套筒130。CT成像系统110包括辐射源、探测器和旋转框架111，所述辐射源和探测器安装在旋转框架111上。旋转框架111的周边上设置有至少一个第一孔112。旋转框架111通过滑环轴承固定在支撑架120上。支撑架120的周边上设置有与至少一个第一孔112对准的至少一个第二孔122。当至少一个第一孔112与至少一个第二孔122对准时，第一套筒130以可拆卸的方式接合在对准的第一孔112和第二孔122内。如图4和7所示，第一套筒130包括第一配合部133，第一配合部133与第一锁定部150配合以在更换所述滑环轴承时锁定旋转框架111。这样，所述实施例利用较少的零件数量和结构实现了在更换滑环轴承时对于旋转框架的锁定，由此简化了维修的工作。
在实施例中，辐射源提供用于检测物体的射线，例如，X射线、伽玛(γ)射线、中子射线中的一种或几种。所述辐射源例如可以是加速器、同位素源或X光机等。在实施例中。探测器配置成能够检测到从辐射源发出的射线。
如图2所示，旋转框架111包括多个第一孔112，多个第一孔112均匀地分布在旋转框架111的周边上。如图3所示，支撑架120包括容纳腔121，旋转框架111安装在容纳腔121中。支撑架120包括多个第二孔122，多个第二孔122均匀地分布在容纳腔121的周边上。图2和图3所示的示 例仅是示意性的，本领域技术人员可以根据需要调整第一孔和第二孔的数量和位置。
如图4所示，第一套筒130包括第一筒形部分131和第二筒形部分132。第一筒形部分131与第一孔112接合，第二筒形部分132与第二孔122接合。在实施例中，第二筒形部分132的外表面设置有外螺纹，第二孔122的内表面设置有内螺纹，从而第二筒形部分132与第二孔122通过螺纹的方式配合在一起。在实施例中，第一筒形部分131的外表面设置有外螺纹，第一孔112的内表面设置有内螺纹，从而第一筒形部分131与第一孔112通过螺纹的方式配合在一起。本领域技术人员可以根据需要在两个筒形部分中的一个或两个上设置外螺纹以与相应地孔中的内螺纹配合。
如图4所示，第一筒形部分131的直径小于第二筒形部分132的直径。在实施例中，第一套筒130还包括台阶134，台阶134连接第一套筒部分131和第二套筒部分132。
在实施例中，第一筒形部分131的内表面上设置有螺纹，以形成第一配合部133，第一配合部133与第一锁定部150(诸如，螺钉)配合实现锁定旋转框架。这样，在安装新的滑环轴承后可以避免重新定位CT成像系统，从而便于后期操作。而且，本公开的方案使用结构简单且体积小的第一锁定部，例如螺钉，这与固定块相比，减少了零件加工的工作量以及锁定组件占用的零件空间，从而允许旋转框架的尺寸减小。本领域技术人员可以理解，第一筒形部分131和第二筒形部分131的内表面上可以都设置有螺纹，相应地，第一锁定部150同时与第一筒形部分和第二筒形部分两者的内表面上的螺纹配合以实现锁定。本领域技术人员可以根据需要选择具体的设置方式。
在实施例中，当需要更换滑环轴承时，使得第一套筒130安装在第一孔112和第二孔122内，再将旋转框架111旋转到合适的位置，此时第一套筒130的端部与正常操作位置的旋转框架111上的面处于贴合状态，接着第一锁定部150与第一配合部133配合实现锁定。在这种状况下，第一套筒的端部形成为定位面，以确保旋转框架所处的位置与其正常工作时的位置相同。
在实施例中，当需要维修CT检测装置时，将第一锁定部与第一配合 部配合，从而固定旋转框架，允许旋转框架固定在任意角度的位置。以此方式，本公开的实施方案将在更换滑环轴承和维修CT检测装置两种情况下使用的两套锁定组件整合成一套锁定组件，从而以较少的零件数量和结构实现在不同应用场景下对CT成像系统的锁定需求。而且，本公开的实施例可以方便快速地实现锁定功能，零件体积小，并便于存放。本领域技术人员可以理解，当需要维修CT检测装置时，也可以使用与第一锁定部不同的另一锁定部，例如销。
在实施例中，CT检测装置100还包括第二套筒140，第二套筒140配置成与第二孔122配合使用。在实施例中，第二套筒140的外表面设置有外螺纹，第二孔122的内表面设置有内螺纹，从而第二套筒140通过螺纹的方式安装在第二孔122内。
如图5所示，第二套筒140包括第二配合部141，第二配合部141与第二锁定部160配合，以在维修CT检测装置100时锁定旋转框架111。在实施例中，第二套筒140的内部形成销孔，所述销孔形成第二配合部141以与第二锁定部160(诸如销)配合。如图6所示，销插入到第一孔112和第二套筒140内部的销孔，从而使得旋转框架111停止在期望的位置。在实施例中，所述销孔和第一孔112的内径大致等于所述销的外径。本领域技术人员可以理解，第二套筒140的内部可以形成螺纹孔，所述螺纹孔形成第二配合部以与第二锁定部(诸如螺钉)配合。
在实施例中，第二套筒140可以在CT检测装置100正常工作时位于第二孔122内。当需要维修CT检测装置100时，将第二锁定部插入到第二配合部中，以实现固定旋转框架111。当需要更换滑环轴承时，如图7所示，将第二套筒140从第二孔122内移除，再将第一套筒130安装在第二孔122和第一孔112内，接着再安装第一锁定部以锁定旋转框架111。这样，本公开的实施例以较少的零件数量和结构实现在不同应用场景下对CT成像系统的锁定需求，并可以方便快速地实现锁定功能。
在实施例中，第一套筒和第二套筒都可以由螺钉改造而成，例如由成品的六角圆头改造而成，从而降低了成本，减少了零件加工的工作量。
本领域的技术人员可以理解，上面所描述的实施例都是示例性的，并且本领域的技术人员可以对其进行改进，各种实施例中所描述的结构在不 发生结构或者原理方面的冲突的情况下可以进行自由组合。
虽然结合附图对本公开进行了说明，但是附图中公开的实施例旨在对本公开优选实施方式进行示例性说明，而不能理解为对本公开的一种限制。
虽然本总体发明构思的一些实施例已被显示和说明，本领域普通技术人员将理解，在不背离本总体发明构思的原则和精神的情况下，可对这些实施例做出改变，本公开的范围以权利要求和它们的等同物限定。
应注意，措词“包括”不排除其它元件或步骤，措词“一”或“一个”不排除多个。另外，权利要求的任何元件标号不应理解为限制本公开的范围。

Claims (20)

  1. 一种CT检测装置，包括：
    CT成像系统，包括辐射源、探测器和旋转框架，所述辐射源和探测器安装在所述旋转框架上，所述旋转框架的周边上设置有至少一个第一孔；
    支撑架，所述旋转框架通过滑环轴承固定在所述支撑架上，所述支撑架的周边上设置有与至少一个所述第一孔对准的至少一个第二孔；
    第一套筒，以可拆卸的方式接合在对准的所述第一孔和第二孔内，所述第一套筒包括第一配合部，所述第一配合部与第一锁定部配合以在更换所述滑环轴承时锁定所述旋转框架。
  2. 根据权利要求1所述的CT检测装置，其中，所述第一套筒包括与所述第一孔接合的第一筒形部分和与所述第二孔接合的第二筒形部分，
    所述第一筒形部分的外表面和所述第一孔的内表面设置有螺纹；和/或
    所述第二筒形部分的外表面和所述第二孔的内表面设置有螺纹。
  3. 根据权利要求2所述的CT检测装置，其中，所述第一筒形部分的直径小于所述第二筒形部分的直径，所述第一筒形部分和第二筒形部分由台阶相连；
    所述第一孔的直径小于所述第二孔的直径。
  4. 根据权利要求2所述的CT检测装置，其中，所述第一配合部形成为在所述第一筒形部分的内表面上的螺纹或所述第一筒形部分和第二筒形部分的内表面上的螺纹，所述第一锁定部形成为螺钉。
  5. 根据权利要求1所述的CT检测装置，其中，
    所述至少一个第一孔包括均匀分布在所述旋转框架的周边上的多个第一孔；和
    所述至少一个第二孔包括均匀分布在所述支撑架的容纳腔的周 边上的多个第二孔，所述旋转框架安装在所述容纳腔中。
  6. 根据权利要求1所述的CT检测装置，其中，所述第一套筒的末端端面为定位面。
  7. 根据权利要求1-6中任一项所述的CT检测装置，还包括第二套筒，所述第二套筒配置成在所述第一套筒从所述第一孔和第二孔移除的情况下以可拆卸的方式接合在所述第二孔内并包括第二配合部，所述第二配合部、所述第一孔与第二锁定部配合，以在维修所述CT检测装置时锁定所述旋转框架。
  8. 根据权利要求7所述的CT检测装置，其中，所述第二套筒的外表面和所述第二孔的内表面包括螺纹。
  9. 根据权利要求8所述的CT检测装置，其中，所述第二配合部形成为所述第二套筒内部的销孔，所述第二锁定部形成为销，所述销插入到所述第一孔和所述第二套筒内部的销孔中。
  10. 根据权利要求9所述的CT检测装置，其中，所述销孔和所述第一孔的内径大致等于所述销的外径。
  11. 根据权利要求2所述的CT检测装置，其中，所述第一配合部形成为在所述第一筒形部分的内表面上的螺纹或所述第一筒形部分和第二筒形部分的内表面上的螺纹，所述第一锁定部形成为销，所述销插入到所述第一孔和所述第一配合部中，以在维修所述CT检测装置时锁定所述旋转框架。
  12. 一种用于CT检测装置的锁定组件，所述CT检测装置包括通过滑环轴承固定在一起的支撑架和CT成像系统的旋转框架，所述锁定组件包括：
    设置在所述旋转框架上的至少一个第一孔；
    设置在所述支撑架上的至少一个第二孔，配置成能够与至少一个所述第一孔对准；
    第一套筒，以可拆卸的方式接合在对准的所述第一孔和第二孔内，所述第一套筒包括第一配合部；
    第一锁定部，与所述第一配合部配合以在更换所述滑环轴承时锁定所述旋转框架。
  13. 根据权利要求12所述的锁定组件，其中，所述第一套筒还包括与所述第一孔接合的第一筒形部分和与所述第二孔接合的第二筒形部分，
    所述第一筒形部分的外表面和所述第一孔的内表面设置有螺纹；和/或
    所述第二筒形部分的外表面和所述第二孔的内表面设置有螺纹。
  14. 根据权利要求13所述的锁定组件，其中，所述第一筒形部分的直径小于所述第二筒形部分的直径，所述第一筒形部分和第二筒形部分由台阶相连；
    所述第一孔的直径小于所述第二孔的直径。
  15. 根据权利要求13所述的锁定组件，其中，所述第一配合部形成为在所述第一筒形部分的内表面上或所述第一筒形部分和第二筒形部分的内表面上的螺纹，所述第一锁定部形成为螺钉，所述第一套筒的末端端面为定位面。
  16. 根据权利要求12所述的锁定组件，其中，
    所述至少一个第一孔包括均匀分布在所述旋转框架的周边上的多个所述第一孔；和
    所述至少一个第二孔包括均匀分布在所述支撑架的容纳腔的周边上的多个所述第二孔，所述旋转框架安装在所述容纳腔中。
  17. 根据权利要求12-16中任一项所述的锁定组件，还包括第二套筒，所述第二套筒配置成在所述第一套筒从所述第一孔和第二孔移除的情况下以可拆卸的方式接合在所述第二孔内并包括第二配合部，所述第二配合部、所述第一孔与第二锁定部配合，以在维修所述CT检测装置时锁定所述旋转框架。
  18. 根据权利要求17所述的锁定组件，其中，所述第二套筒的外表面和所述第二孔的内表面包括螺纹。
  19. 根据权利要求17所述的锁定组件，其中，所述第二配合部形成为所述第二套筒内部的销孔，所述第二锁定部形成为销，所述销插入到所述第一孔和所述第二套筒内部的销孔中，所述销孔和所述第一孔的内径大致等于所述销的外径。
  20. 根据权利要求13所述的锁定组件，其中，所述第一配合部形成为在所述第一筒形部分的内表面上或所述第一筒形部分和第二筒形部分的内表面上的螺纹，所述第一锁定部形成为销，所述销插入到所述第一孔和所述第一配合部中，以在维修所述CT检测装置时锁定所述旋转框架。
PCT/CN2021/094357 2020-05-29 2021-05-18 用于ct检测装置的锁定组件和ct检测装置 WO2021238720A1 (zh)

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