WO2021238716A1 - 检测通道、通道组件和ct检测装置 - Google Patents

检测通道、通道组件和ct检测装置 Download PDF

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Publication number
WO2021238716A1
WO2021238716A1 PCT/CN2021/094267 CN2021094267W WO2021238716A1 WO 2021238716 A1 WO2021238716 A1 WO 2021238716A1 CN 2021094267 W CN2021094267 W CN 2021094267W WO 2021238716 A1 WO2021238716 A1 WO 2021238716A1
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Prior art keywords
channel
detection
detection channel
base
carbon fiber
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PCT/CN2021/094267
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English (en)
French (fr)
Inventor
陈志强
张丽
洪明志
王子楠
黄清萍
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 EP21814230.5A priority Critical patent/EP4159135A4/en
Priority to JP2022573352A priority patent/JP2023527222A/ja
Publication of WO2021238716A1 publication Critical patent/WO2021238716A1/zh

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    • 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]
    • 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
    • G01N23/044—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 laminography or tomosynthesis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B32B1/08—Tubular products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B32B29/02—Layered products comprising a layer of paper or cardboard next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0261—Polyamide fibres
    • B32B2262/0269—Aromatic polyamide fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/106—Carbon fibres, e.g. graphite fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/546—Flexural strength; Flexion stiffness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/554—Wear resistance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/732—Dimensional properties
    • B32B2307/737—Dimensions, e.g. volume or area
    • B32B2307/7375—Linear, e.g. length, distance or width
    • B32B2307/7376—Thickness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2597/00—Tubular articles, e.g. hoses, pipes

Definitions

  • the present disclosure relates to the field of radiation detection, and in particular to a detection channel, a channel component including the detection channel, and a CT detection device including the detection channel.
  • the object to be tested enters the detection device from one end of the detection device, and leaves the detection device from the other end of the detection device.
  • the space where the object to be measured moves is the channel of the CT detection device.
  • the strength, rigidity, wear resistance, and difficulty of assembly of the channel are all critical to the CT inspection device.
  • the embodiments of the present disclosure provide an improved detection channel, a channel assembly including the detection channel, and a CT detection device including the detection channel, which achieve greater strength, rigidity and wear resistance with less weight, And easy to assemble and repair.
  • a detection channel for a CT detection device comprising: a base with open ends configured to allow an object to be tested to pass through the detection channel, wherein the detection channel is entirely made of carbon fiber Made of composite materials in one piece.
  • the carbon fiber composite material includes a carbon fiber layer, an aramid honeycomb paper layer, and an aramid layer that are sequentially stacked.
  • the thickness of the carbon fiber layer is 0.1-0.5 mm
  • the thickness of the aramid honeycomb paper layer is 1-10 mm
  • the thickness of the aramid layer is 0.1-0.5 mm.
  • the carbon fiber layer is located inside the detection channel.
  • At least one of the two ends of the base is provided with a connecting surface, which is configured to be connected to the transmission channel, thereby forming a through channel assembly.
  • At least one ring member for mounting a lead plate is sleeved on the outer side of the base.
  • the outer side of the base includes an area where a lead plate is not installed to allow detection radiation to enter from the area.
  • the thickness of the aramid honeycomb paper layer in the carbon fiber composite material forming the channel bottom plate of the base is greater than the thickness of the aramid honeycomb paper layer in the carbon fiber composite material forming the other part of the base. The thickness is large.
  • a channel assembly for a CT detection device including: the detection channel as described in any of the foregoing embodiments; and at least one transmission channel, connected to and communicated with the detection channel At least one of the two ends of the base.
  • the channel assembly further includes a conveyor belt channel, which is located at the bottom of the detection channel and the transmission channel, and is configured for the conveyor belt to pass through.
  • a CT detection device including: the detection channel as described in any of the foregoing embodiments.
  • the CT detection device further includes: a rotating frame on which a radiation source and a detector are arranged; a slip ring bearing; a support frame including: a main body including a bearing mounting hole The slip ring bearing is arranged in the bearing mounting hole, the rotating frame is rotatably arranged on the slip ring bearing; the base is located at the bottom of the main body and is configured to support the main body; connected Part, the cross section of the connecting part is narrow at the top and wide at the bottom, the upper part of the connecting part is connected to the main body part, the lower part of the connecting part is connected to the base, wherein the detection channel is arranged in the rotating frame In the installation space.
  • Fig. 1 shows a perspective view of a CT detection device according to an embodiment of the present disclosure
  • Figure 2 shows a side view of the CT detection device shown in Figure 1;
  • Fig. 3 shows a front view of the CT detection device shown in Fig. 1;
  • Fig. 4 shows a bottom view of the CT detection device shown in Fig. 1;
  • Figure 5 shows a perspective view of a support frame according to an embodiment of the present disclosure
  • Figure 6 shows a front view of the support frame shown in Figure 5;
  • Figure 7 shows a bottom view of the support frame shown in Figure 5;
  • FIG. 8 shows a cross-sectional view of the support frame according to the first embodiment of the present disclosure, taken along the direction AA in FIG. 6;
  • FIG. 9 shows a cross-sectional view of the support frame according to the second embodiment of the present disclosure, taken along the direction AA in FIG. 6;
  • FIG. 10 shows a cross-sectional view of the support frame according to the third embodiment of the present disclosure taken along the direction AA in FIG. 6;
  • FIG. 11 shows a perspective view of a detection channel according to an embodiment of the present disclosure
  • Figure 12 shows a front view of the detection channel shown in Figure 11;
  • Figure 13 shows a top view of the detection channel shown in Figure 11;
  • Figure 14 shows a side view of the detection channel shown in Figure 11;
  • Fig. 15 shows a cross-sectional view of the material forming the detection channel shown in Fig. 11.
  • the channel can be formed by splicing several segments.
  • most of the channels are made of stainless steel plates or carbon steel plates, and the areas in the middle that need to be penetrated by radiation need to be made of carbon fiber or other materials that do not reduce radiation.
  • the technical solution for the composition of this channel is a steel plate channel + a carbon fiber channel + a steel plate channel.
  • the cross-sectional shape of the channel is generally a closed rectangle or a closed trapezoid, and the carbon fiber part of the channel is generally made by splicing two L-shaped carbon fiber plates.
  • the embodiment of the present disclosure provides a CT inspection device 100, which includes a support frame 10, a slip ring bearing 20, a rotating frame 30, and a detection channel 50.
  • the rotating frame 30 is provided with a radiation source and a detector, and is rotatably provided on the slip ring bearing 20.
  • the support frame 10 includes three parts, specifically a main body 11, a base 13 and a connecting part 14.
  • the main body 11 includes a bearing mounting hole 12 in which the slip ring bearing 20 is arranged.
  • the base 13 is located at the bottom of the main body 11 and is configured to support the main body 11.
  • the cross section of the connecting part 14 taken along the direction parallel to the page of FIG. 8 is narrow in the upper part and wide in the lower part.
  • the upper part of the connecting part 14 is connected to the main body part 11, and the lower part of the connecting part 14 is connected to the base 13.
  • the support of the embodiment of the present disclosure can achieve sufficient rigidity and strength with a lower weight, thereby reducing the vibration of the rotating frame.
  • the detection channel 50 is arranged in the installation space of the rotating frame 30, and the object to be measured is irradiated by the detection radiation in the detection channel 50 and the detector receives the returned radiation signal, thereby completing the detection process.
  • the detection channel 50 includes a base 51 with open ends, and the base 51 is configured to allow the object to be measured to pass through the detection channel 50.
  • the detection channel 50 is integrally made of carbon fiber composite material. Since the multi-stage splicing process is eliminated, this helps to simplify the installation process of the channel.
  • the cross-section of the detection channel 50 may be substantially rectangular, trapezoidal, square, or the like.
  • the specific shape can be set as required.
  • the carbon fiber composite material includes a carbon fiber layer 50A, an aramid honeycomb paper layer 50B, and an aramid layer 50C stacked in sequence.
  • the carbon fiber composite material has good wear resistance and rigidity, and has the advantages of light weight.
  • the thickness of the carbon fiber layer 50A is 0.1-0.5 mm, preferably 0.2-0.4 mm.
  • the thickness of the aramid honeycomb paper layer 50B is 1-10 mm, preferably 3-8 mm, more preferably 5 mm.
  • the thickness of the aramid layer 50C is 0.1-0.5 mm, preferably 0.2-0.4 mm.
  • the carbon fiber layer 50A is located inside the detection channel. The inner side of the detection channel contacts the object to be tested, and the carbon fiber layer 50A provides the desired wear resistance, thereby facilitating the passage of the object to be tested.
  • the thickness of the aramid honeycomb paper layer in the carbon fiber composite material forming the channel bottom plate of the base 51 is greater than the thickness of the aramid honeycomb paper layer in the carbon fiber composite material forming the other parts of the base 51.
  • the thickness of the aramid honeycomb paper layer in the carbon fiber composite material forming the channel bottom plate may be 1-10 mm larger, preferably 3 mm, than the thickness of the aramid honeycomb paper layer in the carbon fiber composite material forming the other part of the base. -8mm, more preferably 5mm larger.
  • the connecting surface 52 includes a connecting hole (for example, a screw hole) to fix the transmission channel 60 on the detection channel 50 by a connecting member (for example, a screw).
  • the detection channel 50 includes two circular ring members. Installing a lead plate on the outside of the base 51 can prevent radiation from entering from this area.
  • the outer side of the base 51 includes an area where the lead plate is not installed to allow detection radiation to enter from the area. In the illustrated embodiment, the area where the lead plate is not installed is located between the two circular ring members. It should be understood that those skilled in the art can adjust the position of the area where the lead plate is not installed as needed.
  • the CT inspection apparatus 100 further includes a channel assembly 70 through which the object to be measured passes to complete the inspection process.
  • the channel assembly 70 includes a detection channel 50 and at least one transmission channel 60. At least one transmission channel 60 is connected and communicated with at least one of the two ends of the base 51 of the detection channel 50, thereby allowing the object to be measured to be transmitted from the transmission channel to the detection channel, or from the detection channel to the transmission channel.
  • the channel assembly 70 includes two transmission channels 60.
  • the channel assembly 70 further includes a conveyor belt channel 72 located at the bottom of the detection channel 50 and the transmission channel 60.
  • the conveyor belt channel 72 is configured to allow the conveyor belt to pass through, thereby allowing the object to be measured to pass through the detection channel and the transmission channel.
  • the cross section of the connecting portion 14 is formed in a chevron shape, thereby reducing the weight of the support frame while providing sufficient strength and rigidity.
  • the reduced weight improves the mobility of the support frame and also facilitates the installation and adjustment process of the support frame.
  • the cross section of the connecting portion 14 is formed in an inverted T shape.
  • the cross section of the connecting portion 14 is formed in an inverted tree shape.
  • the connecting portion of the present disclosure is not limited to the shape of the cross-section shown, and other cross-sectional shapes can be set as required.
  • the support frame 10 further includes a first support plate 15.
  • the first support plate 15 is arranged on the periphery of the main body portion 11 and extends outward along the axial direction of the main body portion 11.
  • the first support plate 15 may be disposed above the bearing mounting hole 12 and formed in a semicircular shape.
  • the first support plate 15 is shown as a semicircle in FIG. 5, those skilled in the art can design it into any other suitable shape, such as an oval shape, as needed.
  • the support frame 10 further includes a plurality of first reinforcing ribs 16.
  • the first reinforcing rib 16 can enhance the strength and rigidity of the support frame 10.
  • one side of each first reinforcing rib 16 is connected to the side surface of the first support plate 15, and the second side connected to the side is connected to the main body portion 11.
  • the plurality of first reinforcing ribs 16 are uniformly arranged along the circumferential direction of the first supporting plate 15. Those skilled in the art can understand that the plurality of first reinforcing ribs does not necessarily have to be evenly arranged along the circumferential direction of the first support plate 15, but arranged in other regularities, for example, arranged at predetermined intervals. In addition, the plurality of first reinforcing ribs may be formed as cross-shaped lattice ribs.
  • the support frame 10 further includes a plurality of second reinforcing ribs 17.
  • the second reinforcing rib 17 can improve the strength and rigidity of the support 10.
  • Each second reinforcing rib 17 extends downward from the outer edge of the bearing mounting hole 12 to the base 13 via the bottom of the main body 11 and the connecting portion 14.
  • the plurality of second reinforcing ribs 17 have a flat shape and are evenly spaced apart from each other.
  • the plurality of second reinforcing ribs may form a cross grid rib.
  • the embodiments of the present disclosure are not limited to this, and those skilled in the art can make appropriate adjustments as needed.
  • a plurality of third reinforcing ribs 18 are provided inside the base 13.
  • the third reinforcing rib 18 can enhance the strength and rigidity of the support frame.
  • the third reinforcing rib 18 is formed in a cross shape.
  • the support frame 10 can be made by integral casting, so that the main body and the base are integrally formed. This method reduces the traditional connection process between the support frame and the base, thereby reducing the processing workload.
  • This process can use cast aluminum material, thereby further reducing the weight of the support frame. In other embodiments, this process may use cast iron materials or other cast alloy materials.
  • the main body and the base of the support frame can be made into two separate parts, and then the two parts are connected into one part.
  • the support frame of the embodiment of the present disclosure may also be manufactured by welding.
  • the CT inspection device 100 further includes at least one base extension 40 assembled with the base 13.
  • the base extension 40 cooperates with the base 13 of the support frame 10 to jointly support the CT inspection device 100.
  • the support frame 10 and the detection channel 50 in the embodiment of the present disclosure can be used in conjunction, thereby improving the flexibility of the CT detection device.
  • the extension section of the base and the transmission channel can be disconnected from the support frame and the detection channel respectively, so that the maintenance can be performed separately, which is convenient for users.

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Abstract

一种用于CT检测装置(100)的检测通道(50)、用于CT检测装置(100)的通道组件(70)和CT检测装置(100)。检测通道(50)包括两端敞开的基部(51)，基部(51)配置成允许待测物体通过检测通道(50)，其中，检测通道(50)整体上由碳纤维复合材料一体制成。碳纤维复合材料包括依次层叠设置的碳纤维层(50A)、芳纶蜂窝纸层(50B)和芳纶层(50C)。

Description

检测通道、通道组件和CT检测装置 技术领域
本公开涉及辐射检测领域，具体涉及一种检测通道、包括该检测通道的通道组件和包括该检测通道的CT检测装置。
背景技术
通常，在CT检测装置工作时，待测物体从检测装置的一端进入检测装置，并从检测装置的另一端离开检测装置。在该检测过程中，待测物体移动的空间是CT检测装置的通道。通道的强度、刚度、耐磨性、装配难度等对于CT检测装置来说都是至关重要的。
发明内容
本公开的实施例提供了一种改良的检测通道、包括该检测通道的通道组件和包括该检测通道的CT检测装置，其以较少的重量实现了较大的强度、刚度和耐磨性，并且便于组装和维修。
根据本公开的一个方面，提供了一种用于CT检测装置的检测通道，包括：两端敞开的基部，配置成允许待测物体通过所述检测通道，其中，所述检测通道整体上由碳纤维复合材料一体制成。
根据本公开的一个示例性实施例，所述碳纤维复合材料包括依次层叠设置的碳纤维层、芳纶蜂窝纸层和芳纶层。
根据本公开的一个示例性实施例，所述碳纤维层的厚度为0.1-0.5mm，所述芳纶蜂窝纸层的厚度为1-10mm，所述芳纶层的厚度为0.1-0.5mm。
根据本公开的一个示例性实施例，所述碳纤维层位于所述检测通道的内侧。
根据本公开的一个示例性实施例，所述基部的两端中的至少一个设置有连接面，配置成与传输通道连接，从而形成贯通的通道组件。
根据本公开的一个示例性实施例，所述基部的外侧套设有用于安装铅板的至少一个环状构件。
根据本公开的一个示例性实施例，所述基部的外侧包括未安装铅板的区域，以允许检测辐射从所述区域射入。
根据本公开的一个示例性实施例，形成所述基部的通道底板的碳纤维 复合材料中的芳纶蜂窝纸层的厚度比形成所述基部的其它部分的碳纤维复合材料中的芳纶蜂窝纸层的厚度大。
根据本公开的另一方面，提供了一种用于CT检测装置的通道组件，包括：如前述实施例中任一个所述的检测通道；和至少一个传输通道，连接且连通于所述检测通道的基部的两端中的至少一个。
根据本公开的一个示例性实施例，所述通道组件还包括传输带通道，位于所述检测通道和传输通道的底部，并配置成供传输带通过。
根据本公开的又一方面，提供了一种CT检测装置，包括：如前述实施例中任一个所述的检测通道。
根据本公开的一个示例性实施例，所述CT检测装置还包括：旋转框架，所述旋转框架上设置有辐射源和探测器；滑环轴承；支撑架，包括：主体部，包括轴承安装孔，所述滑环轴承布置在所述轴承安装孔中，所述旋转框架可旋转地设置在所述滑环轴承上；底座，位于所述主体部的底部并配置成支撑所述主体部；连接部，所述连接部的横截面呈上窄下宽，所述连接部的上部连接至所述主体部，所述连接部的下部连接至底座，其中所述检测通道布置在所述旋转框架的安装空间中。
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。
附图说明
图1示出了根据本公开的实施例的CT检测装置的立体图；
图2示出了图1所示CT检测装置的侧视图；
图3示出了图1所示CT检测装置的主视图；
图4示出了图1所示CT检测装置的仰视图；
图5示出了根据本公开的实施例的支撑架的立体图；
图6示出了图5所示支撑架的主视图；
图7示出了图5所示支撑架的仰视图；
图8示出了根据本公开的第一实施例的支撑架沿着图6中的方向AA截取的横截面图；
图9示出了根据本公开的第二实施例的支撑架沿着图6中的方向AA截取的横截面图；
图10示出了根据本公开的第三实施例的支撑架沿着图6中的方向AA截取的横截面图；
图11示出了根据本公开的实施例的检测通道的立体图；
图12示出了图11所示检测通道的主视图；
图13示出了图11所示检测通道的俯视图；
图14示出了图11所示检测通道的侧视图；
图15示出了形成图11所示检测通道的材料的截面图。
[符号说明]
10 支撑架
11 主体部
12 轴承安装孔
13 底座
14 连接部
15 第一支撑板
16 第一加强筋
17 第二加强筋
18 第三加强筋
20 滑环轴承
30 旋转框架
40 底座延伸段
50 检测通道
50A 碳纤维层
50B 芳纶蜂窝纸层
50C 芳纶层
51 基部
52 连接面
53 环状构件
60 传输通道
70 通道组件
72 传输带通道
100 CT检测装置
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。
通道可以由几段拼接而成。例如，通道大部分是由不锈钢板或碳钢钢板加工制成，中间需要由辐射穿过的区域需要采用碳纤维或其它不对辐射有削减作用的材料制成。这种通道的组成的技术方案是钢板通道+碳纤维通道+钢板通道。通道横截面的形状一般是一个封闭的矩形，或者是一个封闭的梯形，而通道的碳纤维部分一般是由两个L形碳纤维板拼接制成。
由于检测装置的安装和维修空间的限制，经常需要在通道内部进行通道各段的连接工作，这不便于人工操作。而且，通道采用多个短段连接，会导致通道的整体刚性不足，故需要在通道下方的多个位置处增加支撑结构。这增加了检测装置的复杂性，从而在安装和维修期间需要耗费更多的时间和成本。
针对上述方面中的至少一个方面，本公开的实施例提供了一种改良的方案。下面结合附图对本公开的实施例进行更为详细的阐述。
如图1-4所示，本公开的实施例提供了一种CT检测装置100，包括支撑架10、滑环轴承20、旋转框架30和检测通道50。旋转框架30上设置有辐射源和探测器，并且可旋转地设置在滑环轴承20上。
如图5-10所示，支撑架10包括三个部件，具体地是主体部11、底座13和连接部14。主体部11包括轴承安装孔12，滑环轴承20布置在轴承安装孔12中。底座13位于主体部11的底部并配置成支撑主体部11。沿着平行于图8的页面的方向截取的连接部14的横截面呈上窄下宽，连接部14的上部连接至主体部11，连接部14的下部连接至底座13。在这种 配置下，本公开的实施例的支撑件能够以较低的重量实现足够的刚度和强度，进而减少了旋转框架的振动。
如图1-2所示，检测通道50布置在旋转框架30的安装空间中，待测物体在检测通道50中被检测辐射照射并由探测器接收返回的辐射信号，从而完成检测过程。如图11-15所示，检测通道50包括两端敞开的基部51，该基部51配置成允许待测物体通过检测通道50。在实施例中，检测通道50整体上由碳纤维复合材料一体制成。由于消除了多段的拼接过程，所以这有利于简化通道的安装过程。
这样，在检测通道发生故障时，这允许直接更换一个新的检测通道，从而减少了维修的成本和时间。
在实施例中，检测通道50的横截面可以大体上为矩形、梯形、方形等。具体的形状可以根据需要进行设置。
如图15所示，所述碳纤维复合材料包括依次层叠设置的碳纤维层50A、芳纶蜂窝纸层50B和芳纶层50C。所述碳纤维复合材料具有良好的耐磨性和刚性，并具有重量轻的优点。在实施例中，碳纤维层50A的厚度为0.1-0.5mm，优选地为0.2-0.4mm。在实施例中，芳纶蜂窝纸层50B的厚度为1-10mm，优选地为3-8mm，更优选地为5mm。芳纶层50C的厚度为0.1-0.5mm，优选地为0.2-0.4mm。在实施例中，所述碳纤维层50A位于检测通道的内侧。检测通道的内侧接触待测物体，碳纤维层50A提供期望的耐磨性，从而便于待测物体通过。
在实施例中，形成所述基部51的通道底板的碳纤维复合材料中的芳纶蜂窝纸层的厚度比形成所述基部51的其它部分的碳纤维复合材料中的芳纶蜂窝纸层的厚度大。在实施例中，形成通道底板的碳纤维复合材料中的芳纶蜂窝纸层的厚度可以比形成基部的其它部分的碳纤维复合材料中的芳纶蜂窝纸层的厚度大1-10mm，优选地大3-8mm，更优选地大5mm。当待测物体通过所述检测通道时，检测通道的基部51的底板不会由于待测物体的重量而弯曲。
如图11所示，基部51的两端中的至少一个设置有连接面52，配置成与传输通道60连接，从而形成贯通的通道组件70。在实施例中，连接面52上包括连接孔(例如螺钉孔)，以通过连接件(例如螺钉)将传输通道 60固定在检测通道50上。
如图11和13所示，基部51的外侧套设有用于安装铅板的至少一个环状构件53。在图示的实施例中，检测通道50包括两个圆环构件。在基部51的外侧安装铅板能够避免辐射从该区域射入。在实施例中，基部51的外侧包括未安装铅板的区域，以允许检测辐射从所述区域射入。在图示的实施例中，所述未安装铅板的区域位于两个圆环构件之间。应当理解，本领域技术人员可以根据需要调整未安装铅板的区域的位置。
如图1-2所示，CT检测装置100还包括通道组件70，待测物体通过通道组件以完成检测过程。如图1-2所示，通道组件70包括检测通道50和至少一个传输通道60。至少一个传输通道60连接且连通于检测通道50的基部51的两端中的至少一个，从而允许待测物体从传输通道传输至检测通道，或从检测通道传输至传输通道。在图示的实施例中，通道组件70包括两个传输通道60。
如图12所示，通道组件70还包括传输带通道72，位于检测通道50和传输通道60的底部。传输带通道72配置成供传输带通过，从而允许待测物体通过检测通道和传输通道。
在图8所示的第一实施例中，连接部14的横截面形成为人字形，从而在提供足够的强度和刚度的同时减轻了支撑架的重量。减轻的重量提高了支撑架的移动性，还便于支撑架的安装和调节过程。
在图9所示的第二实施例中，连接部14的横截面形成为倒T形。
在图10所示的第三实施例中，连接部14的横截面形成为倒置的树枝形。本公开的连接部并不限于所示出的横截面的形状，可以根据需要设置其它横截面的形状。
如图5所示，支撑架10还包括第一支撑板15。第一支撑板15布置在主体部11的周边上，并沿主体部11的轴向向外延伸。在实施例中，第一支撑板15可以设置在轴承安装孔12的上方，并形成为一半圆形。当然，尽管在图5中示出第一支撑板15呈半圆形，但是本领域技术人员可以根据需要将其设计成任何其它合适的形状，例如椭圆形等。
如图5所示，支撑架10还包括多个第一加强筋16。第一加强筋16可以增强支撑架10的强度和刚度。在实施例中，每个第一加强筋16的一 侧连接第一支撑板15的侧面，与该侧相连的第二侧连接主体部11。
在图示的实施例中，多个第一加强筋16沿第一支撑板15的圆周方向均匀布置。本领域技术人员可以理解，多个第一加强筋不一定必须沿着第一支撑板15的圆周方向均匀地布置，而是以其它规律布置，例如，以预先设定的间隔布置。另外，多个第一加强筋可以形成为十字形网格筋。
如图5所示，支撑架10还包括多个第二加强筋17。第二加强筋17可以提高支撑件10的强度和刚度。每个第二加强筋17从轴承安装孔12的外沿向下经由主体部11的底部和连接部14延伸至底座13。在图示的实施例中，多个第二加强筋17呈扁平的形状，并彼此均匀地间隔开。多个第二加强筋可以形成十字网格筋。但本公开的实施例不限于此，本领域技术人员可以根据需要进行适当的调整。
如图8-10所示，底座13的内部设置有多个第三加强筋18。第三加强筋18可以增强支撑架的强度和刚度。在图示的实施例中，第三加强筋18形成为十字形。
在实施例中，支撑架10可以采用整体铸造成型的方式制成，使得主体部和底座一体形成。这种方式减少了传统的支撑架和底座之间的连接过程，从而降低了加工工作量。这种过程可以采用铸铝材料，从而进一步减轻了支撑架的重量。在其它实施例中，这种过程可以采用铸铁材料或其它铸造合金材料。
可替代地，支撑架的主体部和底座可以被分别制作成两个单独的零件，再将两个零件连接成一个零件。可替代地，本公开的实施例的支撑架也可以通过焊接来制成。
如图1-2所示，CT检测装置100还包括与底座13装配在一起的至少一个底座延伸段40。底座延伸段40与支撑架10的底座13配合，以共同支撑CT检测装置100。
如图1-4所示，本公开的实施例中的支撑架10和检测通道50能够配合使用，从而提高了CT检测装置的灵活性。当需要检测小型物体时，仅需要在实施例中的支撑架的两端中的至少一端连接底座延伸段，并相应地在检测通道的两端中的至少一端连接传输通道。而且，当需要维修时，可以将底座延伸段和传输通道分别与支撑架和检测通道断开连接，从而可以 分别进行维修，便于用户使用。
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 (12)

  1. 一种用于CT检测装置的检测通道，包括：
    两端敞开的基部，配置成允许待测物体通过所述检测通道，
    其中，所述检测通道整体上由碳纤维复合材料一体制成。
  2. 根据权利要求1所述的检测通道，其中，所述碳纤维复合材料包括依次层叠设置的碳纤维层、芳纶蜂窝纸层和芳纶层。
  3. 根据权利要求2所述的检测通道，其中，所述碳纤维层的厚度为0.1-0.5mm，所述芳纶蜂窝纸层的厚度为1-10mm，所述芳纶层的厚度为0.1-0.5mm。
  4. 根据权利要求3所述的检测通道，其中，所述碳纤维层位于所述检测通道的内侧。
  5. 根据权利要求1-4中任一项所述的检测通道，其中，所述基部的两端中的至少一个设置有连接面，配置成与传输通道连接，从而形成贯通的通道组件。
  6. 根据权利要求1-4中任一项所述的检测通道，其中，所述基部的外侧套设有用于安装铅板的至少一个环状构件。
  7. 根据权利要求6所述的检测通道，其中，所述基部的外侧包括未安装铅板的区域，以允许检测辐射从所述区域射入。
  8. 根据权利要求2-4中任一项所述的检测通道，其中，形成所述基部的通道底板的碳纤维复合材料中的芳纶蜂窝纸层的厚度比形成所述基部的其它部分的碳纤维复合材料中的芳纶蜂窝纸层的厚度大。
  9. 一种用于CT检测装置的通道组件，包括：
    如权利要求1-8中任一项所述的检测通道；和
    至少一个传输通道，连接且连通于所述检测通道的基部的两端中的至少一个。
  10. 根据权利要求9所述的通道组件，还包括传输带通道，位于所述检测通道和传输通道的底部，并配置成供传输带通过。
  11. 一种CT检测装置，包括：如权利要求1-8中任一项所述的 检测通道。
  12. 根据权利要求11所述的CT检测装置，还包括：
    旋转框架，所述旋转框架上设置有辐射源和探测器；
    滑环轴承，
    支撑架，包括：
    主体部，包括轴承安装孔，所述滑环轴承布置在所述轴承安装孔中，所述旋转框架可旋转地设置在所述滑环轴承上；
    底座，位于所述主体部的底部并配置成支撑所述主体部；
    连接部，所述连接部的横截面呈上窄下宽，所述连接部的上部连接至所述主体部，所述连接部的下部连接至底座，
    其中所述检测通道布置在所述旋转框架的安装空间中。
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