阅读说明：本技术 检测通道、通道组件和ct检测装置 (Detection channel, channel assembly and CT detection device ) 是由 陈志强 张丽 洪明志 王子楠 黄清萍 于 2020-05-29 设计创作，主要内容包括：本发明公开了一种用于CT检测装置的检测通道、用于CT检测装置的通道组件和CT检测装置。该检测通道包括两端敞开的基部,所述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。(The invention discloses a detection channel for a CT detection device, a channel assembly for the CT detection device and the CT detection device. The detection channel comprises a base part with two open ends, the base part is configured to allow an object to be detected to pass through the detection channel, and the detection channel is integrally made of carbon fiber composite materials.)

1. A detection channel for a CT detection apparatus, comprising:

a base portion with both ends open, configured to allow an object to be measured to pass through the detection channel,

wherein the detection channel is integrally made of carbon fiber composite material.

2. The detection channel of claim 1, wherein the carbon fiber composite material comprises a carbon fiber layer, an aramid honeycomb paper layer and an aramid layer which are sequentially stacked.

3. The detection channel of claim 2, wherein the carbon fiber layer is 0.1-0.5mm thick, the aramid honeycomb paper layer is 1-10mm thick, and the aramid layer is 0.1-0.5mm thick.

4. The detection channel of claim 3, wherein the carbon fiber layer is located inside the detection channel.

5. The detection channel of any one of claims 1-4, wherein at least one of the two ends of the base is provided with a connection face configured to connect with a transmission channel, thereby forming a through channel assembly.

6. The detection channel of any one of claims 1-4, wherein the outside of the base is sleeved with at least one ring-shaped member for mounting a lead plate.

7. The detection channel of claim 6, wherein an outer side of the base comprises a region where no lead plate is mounted to allow detection radiation to be injected from the region.

8. A detection channel according to any one of claims 2-4, wherein the aramid honeycomb paper layer in the carbon fibre composite material forming the channel floor of the base has a greater thickness than the aramid honeycomb paper layer in the carbon fibre composite material forming the other parts of the base.

9. A channel assembly for a CT inspection device, comprising:

the detection channel of any one of claims 1-8; and

at least one transmission channel connected and communicated with at least one of two ends of the base of the detection channel.

10. The channel assembly of claim 9, further comprising a conveyor channel at the bottom of the detection channel and the conveyor channel and configured for passage of a conveyor.

11. A CT detection apparatus comprising: the detection channel of any one of claims 1-8.

12. The CT detection apparatus of claim 11, further comprising:

the detector comprises a rotating frame, wherein a radiation source and a detector are arranged on the rotating frame;

a slip ring bearing is arranged on the bearing body,

a support frame, comprising:

a main body part including a bearing mounting hole in which the slip ring bearing is disposed, the rotating frame being rotatably provided on the slip ring bearing;

a base located at a bottom of the body portion and configured to support the body portion;

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, and the detection channel is arranged in the installation space of the rotating frame.

Technical Field

The invention relates to the field of radiation detection, in particular to a detection channel, a channel assembly comprising the detection channel and a CT detection device comprising the detection channel.

Background

Generally, when the CT inspection apparatus is operated, an object to be inspected enters the inspection apparatus from one end of the inspection apparatus and leaves the inspection apparatus from the other end of the inspection apparatus. In the detection process, the space where the object to be detected moves is a channel of the CT detection device. The strength, rigidity, wear resistance, assembly difficulty and the like of the channel are all crucial to the CT detection device.

Disclosure of Invention

Embodiments of the present disclosure provide an improved detection channel, a channel assembly including the detection channel, and a CT detection apparatus including the detection channel, which achieve greater strength, rigidity, and wear resistance with less weight, and facilitate assembly and maintenance.

According to an aspect of the present invention, there is provided a detection channel for a CT detection apparatus, comprising: a base portion with two open ends configured to allow an object to be tested to pass through the detection channel, wherein the detection channel is integrally made of carbon fiber composite material.

According to an exemplary embodiment of the present disclosure, the carbon fiber composite material includes a carbon fiber layer, an aramid honeycomb paper layer, and an aramid layer, which are sequentially stacked.

According to an exemplary embodiment of the present disclosure, the thickness of the carbon fiber layer is 0.1-0.5mm, the thickness of the aramid honeycomb paper layer is 1-10mm, and the thickness of the aramid layer is 0.1-0.5 mm.

According to an exemplary embodiment of the present disclosure, the carbon fiber layer is located inside the detection channel.

According to an exemplary embodiment of the disclosure, at least one of the two ends of the base is provided with a connection face configured to be connected with a transmission channel, thereby forming a through channel assembly.

According to an exemplary embodiment of the present disclosure, the outer side of the base is sleeved with at least one ring-shaped member for mounting a lead plate.

According to an exemplary embodiment of the present disclosure, an outer side of the base comprises a region where no lead plate is mounted to allow detection radiation to be injected from the region.

According to an exemplary embodiment of the present disclosure, a thickness of the aramid honeycomb paper layer in the carbon fiber composite material forming the channel floor of the base is greater than a thickness of the aramid honeycomb paper layer in the carbon fiber composite material forming the other portion of the base.

According to another aspect of the present disclosure, there is provided a channel assembly for a CT inspection apparatus, comprising: a detection channel as described in any of the previous embodiments; and at least one transmission channel connected and communicated with at least one of two ends of the base of the detection channel.

According to an exemplary embodiment of the present disclosure, the channel assembly further includes a conveying belt channel located at a bottom of the detection channel and the conveying channel and configured to pass a conveying belt therethrough.

According to still another aspect of the present disclosure, there is provided a CT detection apparatus including: a detection channel as described in any of the previous embodiments.

According to an exemplary embodiment of the present disclosure, the CT detecting apparatus further includes: the detector comprises a rotating frame, wherein a radiation source and a detector are arranged on the rotating frame; a slip ring bearing; a support frame, comprising: a main body part including a bearing mounting hole in which the slip ring bearing is disposed, the rotating frame being rotatably provided on the slip ring bearing; a base located at a bottom of the body portion and configured to support the body portion; 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, and the detection channel is arranged in the installation space of the rotating frame.

Other objects and advantages of the present invention will become apparent from the following description of the invention which refers to the accompanying drawings, and may assist in a comprehensive understanding of the invention.

Drawings

Fig. 1 shows a perspective view of a CT detection apparatus according to an embodiment of the present disclosure;

FIG. 2 illustrates a side view of the CT detection apparatus shown in FIG. 1;

FIG. 3 illustrates a front view of the CT detection apparatus shown in FIG. 1;

FIG. 4 illustrates a bottom view of the CT detection device shown in FIG. 1;

fig. 5 illustrates a perspective view of a support stand according to an embodiment of the present disclosure;

FIG. 6 shows a front view of the support bracket of FIG. 5;

FIG. 7 illustrates a bottom view of the support bracket illustrated in FIG. 5;

fig. 8 shows a cross-sectional view of the support bracket 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 bracket 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 stand 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;

FIG. 12 shows a front view of the detection channel of FIG. 11;

FIG. 13 shows a top view of the detection channel of FIG. 11;

FIG. 14 shows a side view of the detection channel of FIG. 11;

FIG. 15 shows a cross-sectional view of the material forming the detection channel shown in FIG. 11.

Detailed Description

The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings. In the specification, the same or similar reference numerals denote the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the general inventive concept of the present invention and should not be construed as limiting the invention.

Furthermore, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in schematic form in order to simplify the drawing.

In an embodiment of the disclosure, the channel is formed by splicing several segments. For example, the channels are machined mostly from stainless steel or carbon steel, and the areas in the middle that are to be traversed by the radiation need to be made of carbon fiber or other material that does not attenuate the radiation. The technical scheme of the channel composition is that the steel plate channel, the carbon fiber channel and the steel plate channel are formed. In embodiments, the cross-section of the channel is generally in the shape of a closed rectangle or a closed trapezoid, and the carbon fiber portion of the channel is generally made by splicing two L-shaped carbon fiber plates.

Due to the limited space for installation and maintenance of the detection device, it is often necessary to perform the work of connecting the sections of the tunnel inside the tunnel, which is inconvenient for manual operations. Furthermore, the use of multiple short sections for the channel may result in an overall less rigid channel, requiring additional support structure at multiple locations below the channel. This increases the complexity of the detection device, which requires more time and cost to be spent during installation and maintenance.

In view of at least one of the above aspects, another embodiment of the present disclosure provides an improved solution. Embodiments of the present disclosure are described in more detail below with reference to the accompanying drawings.

As shown in fig. 1-4, an embodiment of the present disclosure provides a CT inspection apparatus 100 including a support frame 10, a slip ring bearing 20, a rotating frame 30, and an inspection 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.

As shown in fig. 5 to 10, the stand 10 includes three components, specifically, a main body portion 11, a base 13, and a connecting portion 14. The main body portion 11 includes a bearing mounting hole 12, and a slip ring bearing 20 is disposed in the bearing mounting hole 12. The base 13 is located at the bottom of the main body 11 and configured to support the main body 11. The cross section of the link 14 taken in a direction parallel to the page of fig. 8 is narrow at the top and wide at the bottom, the upper part of the link 14 is connected to the main body 11, and the lower part of the link 14 is connected to the base 13. In this configuration, the support of the embodiments of the present disclosure can achieve sufficient rigidity and strength with a low weight, thereby reducing vibration of the rotating frame.

As shown in fig. 1-2, a detection passage 50 is disposed in the installation space of the rotating frame 30, and the object to be detected is irradiated with the detection radiation in the detection passage 50 and receives a returned radiation signal by the detector, thereby completing the detection process. As shown in fig. 11-15, inspection channel 50 includes a base 51 open at both ends, with base 51 configured to allow an object to be tested to pass through inspection channel 50. In an embodiment, the detection channel 50 is integrally made of carbon fiber composite material. This advantageously simplifies the installation process of the channel, as the splicing process of the segments is eliminated.

This allows for direct replacement of a new detection channel in the event of a failure of the detection channel, thereby reducing the cost and time of maintenance.

In embodiments, 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.

As shown in fig. 15, the carbon fiber composite material includes a carbon fiber layer 50A, an aramid honeycomb paper layer 50B, and an aramid layer 50C, which are sequentially stacked. The carbon fiber composite material has good wear resistance and rigidity, and has the advantage of light weight. In an embodiment, the thickness of the carbon fiber layer 50A is 0.1 to 0.5mm, preferably 0.2 to 0.4 mm. In an embodiment, the aramid honeycomb paper layer 50B has a thickness of 1 to 10mm, preferably 3 to 8mm, and more preferably 5 mm. The aramid layer 50C has a thickness of 0.1 to 0.5mm, preferably 0.2 to 0.4 mm. In an embodiment, 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 to facilitate passage of the object to be tested.

In an embodiment, the thickness of the aramid honeycomb paper layer in the carbon fiber composite material forming the channel floor of the base 51 is greater than the thickness of the aramid honeycomb paper layer in the carbon fiber composite material forming the other portions of the base 51. In an embodiment, the thickness of the aramid honeycomb paper layer in the carbon fiber composite material forming the channel floor may be 1-10mm, preferably 3-8mm, more preferably 5mm greater than the thickness of the aramid honeycomb paper layer in the carbon fiber composite material forming the other part of the base. When the object to be measured passes through the inspection passage, the bottom plate of the base 51 of the inspection passage is not bent by the weight of the object to be measured.

As shown in fig. 11, at least one of both ends of the base 51 is provided with a connection face 52 configured to be connected with the transmission channel 60, thereby forming a through channel assembly 70. In an embodiment, the connection surface 52 includes a connection hole (e.g., a screw hole) to fix the transmission channel 60 to the detection channel 50 by a connection member (e.g., a screw).

As shown in fig. 11 and 13, the outside of the base 51 is sleeved with at least one ring-shaped member 53 for mounting a lead plate. In the illustrated embodiment, the detection channel 50 includes two annular ring members. Mounting the lead plate on the outside of the base 51 can avoid radiation from entering this region. In an embodiment, the outside of the base 51 comprises a region where no lead plate is mounted, to allow detection radiation to be injected from said region. In the illustrated embodiment, the area where the lead plate is not mounted is located between two annular members. It should be understood that the position of the area where the lead plate is not installed can be adjusted as desired by those skilled in the art.

As shown in fig. 1-2, the CT inspection apparatus 100 further includes a channel assembly 70 through which the object to be inspected passes to complete the inspection process. As shown in fig. 1-2, the channel assembly 70 includes a detection channel 50 and at least one transmission channel 60. At least one transfer channel 60 is connected to and communicates with at least one of both ends of the base portion 51 of the detection channel 50, thereby allowing the object to be measured to be transferred from the transfer channel to the detection channel or from the detection channel to the transfer channel. In the illustrated embodiment, the channel assembly 70 includes two transmission channels 60.

As shown in FIG. 12, the channel assembly 70 further includes a conveyor belt channel 72 located at the bottom of the detection channel 50 and the conveyor channel 60. The conveyor belt path 72 is configured to pass a conveyor belt, thereby allowing an object to be measured to pass through the detection path and the conveyor path.

In the first embodiment shown in fig. 8, the cross-section of the connecting portion 14 is formed in a chevron shape, thereby reducing the weight of the support bracket while providing sufficient strength and rigidity. The reduced weight improves the mobility of the support frame and is also convenient for the installation and adjustment process of the support frame.

In the second embodiment shown in fig. 9, the connecting portion 14 is formed in an inverted T-shape in cross section.

In the third embodiment shown in fig. 10, the connecting portion 14 is formed in an inverted tree-like shape in cross section. The connection portion of the present disclosure is not limited to the shape of the illustrated cross section, and other cross-sectional shapes may be provided as needed.

As shown in fig. 5, the support stand 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 in the axial direction of the main body portion 11. In an embodiment, the first support plate 15 may be disposed above the bearing mounting hole 12 and formed in a semicircular shape. Of course, although the first support plate 15 is shown in fig. 5 as having a semicircular shape, it may be designed into any other suitable shape, such as an oval shape, etc., as desired by those skilled in the art.

As shown in fig. 5, the support frame 10 further includes a plurality of first reinforcing ribs 16. The first reinforcing ribs 16 can enhance the strength and rigidity of the support stand 10. In the embodiment, one side of each first reinforcing rib 16 is connected to the side of the first support plate 15, and the second side connected to the side is connected to the main body part 11.

In the illustrated embodiment, the plurality of first reinforcing ribs 16 are uniformly arranged in the circumferential direction of the first support plate 15. It will be understood by those skilled in the art that the plurality of first reinforcing beads need not necessarily be arranged uniformly in the circumferential direction of the first support plate 15, but may be arranged in other regular arrangements, for example, at predetermined intervals. In addition, the plurality of first reinforcing ribs may be formed as cross-shaped grid ribs.

As shown in fig. 5, the support frame 10 further includes a plurality of second reinforcing ribs 17. The second reinforcing beads 17 can improve the strength and rigidity of the support member 10. Each of the second reinforcing beads 17 extends from the outer edge of the bearing mounting hole 12 downward to the base 13 via the bottom portion of the main body portion 11 and the connecting portion 14. In the illustrated embodiment, the plurality of second reinforcing beads 17 have a flat shape and are uniformly spaced apart from each other. The plurality of second reinforcing ribs may form cross-grid ribs. The embodiments of the present disclosure are not limited thereto, and those skilled in the art can make appropriate adjustments as needed.

As shown in fig. 8-10, a plurality of third reinforcing beads 18 are provided inside the base 13. The third reinforcing ribs 18 can enhance the strength and rigidity of the support frame. In the illustrated embodiment, the third reinforcing bead 18 is formed in a cross shape.

In an embodiment, the supporting frame 10 may be formed by integral casting, such that the main body and the base are integrally formed. This way reduces the traditional connection process between the support frame and the base, thereby reducing the processing workload. The process may use cast aluminum material to further reduce the weight of the support frame. In other embodiments, such a process may employ cast iron materials or other cast alloy materials.

Alternatively, the main body portion and the base of the supporting frame may be manufactured as two separate parts, and then the two parts are connected to form one part. Alternatively, the support bracket of embodiments of the present disclosure may also be made by welding.

As shown in fig. 1-2, the CT inspection device 100 also 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 cooperatively support the CT detection device 100.

As shown in fig. 1-4, the support frame 10 and the detection channel 50 in the embodiment of the present disclosure can be used together, thereby improving the flexibility of the CT detection apparatus. When small objects need to be detected, only at least one of the two ends of the support frame in the embodiment is connected with the base extension section, and correspondingly at least one of the two ends of the detection channel is connected with the transmission channel. Moreover, when needs maintenance, can with base extension segment and transmission channel respectively with support frame and detection channel disconnection to can maintain respectively, the user of being convenient for uses.

It will be appreciated by those skilled in the art that the embodiments described above are exemplary and can be modified by those skilled in the art, and that the structures described in the various embodiments can be freely combined without conflict in structure or principle.

Although the present invention has been described in connection with the accompanying drawings, the embodiments disclosed in the drawings are intended to be illustrative of preferred embodiments of the present invention and should not be construed as limiting the invention.

Although a few embodiments of the present general inventive concept have been shown and described, it will be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the general inventive concept, the scope of which is defined in the appended claims and their equivalents.

It should be noted that the word "comprising" does not exclude other elements or steps, and the words "a" or "an" do not exclude a plurality. Furthermore, any reference signs in the claims shall not be construed as limiting the scope of the invention.