Rotating device for CT (Computed Tomography) detector and CT detector

Abstract

The invention discloses a rotating device for a CT detection machine and the CT detection machine, and relates to the technical field of radiation detection. The rotating device for the CT detection machine comprises a connecting base and a detector assembly, the connecting base is a circular ring base with the peripheral wall surrounded by a connecting frame, and a mounting part is arranged on the connecting frame. The mounting part comprises a detector mounting part, and the detector assembly is arranged on the detector mounting part. The detector assembly comprises a detector mounting part, the detector mounting part is communicated with the ray receiving groove, the detector mounting part comprises a plurality of detector sub-mounting parts, a separation structure is arranged between every two adjacent detector sub-mounting parts, the detector assembly comprises a plurality of detection units, and the detection units are mounted on the detector sub-mounting parts in a one-to-one correspondence manner. As the space occupied by the ray receiving grooves is large, the opening of the circular ring seat is large, the rigidity and the strength of the circular ring seat are reduced, and the separating structures among the plurality of detector sub-mounting parts are erected on the large ray receiving grooves, the rigidity and the strength of the connecting seat can be improved.

Description

Technical Field

[0001] The present invention relates to the field of radiation detection technology, and in particular to a rotating device for a CT detection machine and a CT detection machine. Background Art

[0002] The CT detection machine includes a fixing device and a rotating device. The rotating device is installed on the slip ring bearing of the fixing device and is rotated by a driving motor to realize tomographic scanning.

[0003] In the prior art, the radiation source and detector in the rotating device for CT detection machine are installed on a circular support frame. Since the X-ray range emitted by the radiation source is large, the space occupied by the detector on the circular support frame is also large, and the opening connected to the detector provided on the circular support frame is also large, which affects the rigidity and strength of the support frame and makes the processing of the support frame more difficult. Summary of the invention

[0004] The object of the present invention is to provide a rotating device for a CT detection machine and a CT detection machine, so as to reduce the processing difficulty of the rotating device and ensure the rigidity and strength of the rotating device.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A rotating device for a CT detection machine, comprising:

[0007] A connecting seat, comprising a circular ring seat and a connecting frame, wherein the connecting frame is arranged around the outer peripheral wall of the circular ring seat, and a mounting portion is arranged on the connecting frame;

[0008] A detector assembly, wherein the mounting portion comprises a detector mounting portion, the detector assembly is arranged on the detector mounting portion, a ray receiving groove is arranged on the annular seat, and the detector mounting portion is communicated with the ray receiving groove;

[0009] The detector mounting portion includes a plurality of detector sub-mounting portions sequentially arranged along the circumference of the annular seat, a partition structure is arranged between two adjacent detector sub-mounting portions, and the detector assembly includes a plurality of detection units, and the plurality of detection units are mounted on the plurality of detector sub-mounting portions in a one-to-one correspondence.

[0010] As an optional solution for the rotating device of the CT detector, the plurality of detector sub-mounting parts include a main detector mounting part and two auxiliary detector mounting parts, and the two auxiliary detector mounting parts are respectively arranged on both sides of the main detector mounting part;

[0011] The partition structure includes an end plate, which is mounted on the ray receiving slot, and the main detector mounting portion is formed between two end plates.

[0012] As an optional solution for the rotating device of the CT detector, the plurality of detection units include a main detection unit and two auxiliary detection units, the main detection unit is mounted on the main detector mounting portion, and the auxiliary detection unit is mounted on the auxiliary detector mounting portion through the mounting seat;

[0013] Each of the auxiliary detection units is correspondingly provided with a mounting seat, the auxiliary detection unit is installed in the mounting seat, and the mounting seat is detachably connected to the auxiliary detector mounting portion.

[0014] As an optional solution for the rotating device of the CT detector, the mounting seat includes a seat body and a bearing plate, the auxiliary detection unit is mounted on the bearing plate, the bearing plate is arranged on the seat body, and the seat body is detachably connected to the auxiliary detector mounting part.

[0015] As an optional solution for the rotating device of the CT detection machine, the carrying plate is detachably connected to the base body.

[0016] As an optional solution for the rotating device of the CT detector, the detector assembly further includes a cover body, and the cover body is disposed on the main detection unit and the base.

[0017] As an optional solution for the rotating device of the CT detection machine, a plug-in limit groove is formed between the auxiliary detector mounting portion and the end plate, and a plug-in limit portion is provided on the seat body, and the plug-in limit portion cooperates with the plug-in limit groove to plug the seat body into the auxiliary detector mounting portion.

[0018] As an optional scheme for a rotating device for a CT detection machine, the base body includes a mounting plate, a first connecting plate and a second connecting plate, the bearing plate is detachably connected to the mounting plate, the first connecting plate is arranged at one end of the mounting plate and is arranged perpendicular to the mounting plate, the bearing plate is arranged to protrude from one end of the mounting plate, and forms the plug-in limit portion with the first connecting plate, the mounting plate is plugged into the plug-in limit groove, and the first connecting plate abuts against the end plate; the second connecting plate is bent downward from the other end of the mounting plate and abuts against the end faces of the first reference frame and the second reference frame.

[0019] As an optional solution for the rotating device of the CT detector, a connecting rib plate is further provided between the first connecting plate and the mounting plate, and the cover body is connected to the connecting rib plate.

[0020] As an optional solution for the rotating device of the CT detector, the rotating device further includes a radiation source, and the radiation source is used to emit X-rays; the mounting portion further includes a radiation source mounting portion, and the radiation source mounting portion and the main detector mounting portion are arranged on the outer peripheral wall of the annular seat relative to each other, and the radiation source is mounted on the radiation source mounting portion;

[0021] The annular seat is provided with a ray emitting slot, the ray emitting slot is communicated with the ray source mounting portion, and the X-rays emitted by the ray source are transmitted through the ray emitting slot and the ray receiving slot to the detector assembly.

[0022] As an optional solution of the rotating device for a CT detector, the connecting frame includes a first reference frame and a second reference frame, the first reference frame and the second reference frame are both surrounded by the outer peripheral wall of the annular seat and are arranged at intervals along the axial direction of the annular seat, and the mounting portion is formed between the first reference frame and the second reference frame;

[0023] The ray emitting slot and the ray receiving slot are both located between the first reference frame and the second reference frame, and both include a first side wall and a second side wall spaced apart along the axial direction of the annular seat, wherein the first side wall is parallel to the side wall of the first reference frame, and the second side wall is parallel to the side wall of the second reference frame.

[0024] As an optional solution for the rotating device of the CT detector, the first reference frame and the second reference frame are arranged in parallel along the axial direction of the annular seat.

[0025] As an optional solution for a rotating device for a CT detector, along the axial direction of the annular seat, the first reference frame and the second reference frame are arranged at a preset angle, and both the first reference frame and the second reference frame extend from the center point of the radiation source mounting portion toward the direction of the main detector mounting portion.

[0026] As an optional solution for a rotating device for a CT detector, the inner wall of the radiation emitting slot and the inner wall of the radiation receiving slot are both provided with a first radiation shielding coating, and the inner circumferential wall of the annular seat is provided with a second radiation shielding coating, and the thickness of the first radiation shielding coating is greater than the thickness of the second radiation shielding coating.

[0027] As an optional solution for the rotating device of the CT detector, the inner peripheral wall of the annular seat is set to a smooth surface.

[0028] As an optional solution for the rotating device of the CT detector, the rotating device further includes an electric control integrated component and a cooling component, the electric control integrated component is used to control the radiation source and provide electrical energy, and the cooling component is used to dissipate heat for the radiation source;

[0029] The mounting portion further comprises an integrated component mounting portion and a cooling component mounting portion, wherein the integrated component mounting portion and the cooling component mounting portion are respectively located on both sides of the radiation source mounting portion, the electric control integrated component is arranged at the integrated component mounting portion, and the cooling component is arranged at the cooling component mounting portion.

[0030] As an optional solution for the rotating device of the CT detector, the mounting portion includes a plurality of mounting bosses, and the radiation source, the electric control integrated component and the cooling component are all mounted on the mounting bosses.

[0031] As an optional solution for the rotating device of the CT detection machine, the mounting boss includes a first mounting boss and a second mounting boss, the first mounting boss is arranged across the first reference frame and the second reference frame, the ray source mounting portion includes two first mounting bosses arranged opposite to each other, and the ray source is mounted on the two first mounting bosses;

[0032] The second mounting boss is arranged on the end surface or one side of the first reference frame and the second reference frame, the integrated component mounting part and the cooling component mounting part are each provided with four second mounting bosses, and the electronic control integrated component and the cooling component are respectively mounted on the four second mounting bosses.

[0033] A CT detector, the CT detector comprising a fixing device and a rotating device for the CT detector as described in any of the above schemes, the fixing device comprising a bracket and a slip ring bearing, the bracket being provided with a mounting hole, the slip ring bearing being arranged in the mounting hole, and the slip ring bearing being connected to the rotating device.

[0034] Beneficial effects of the present invention:

[0035] The rotating device for a CT detector provided by the present invention includes a connecting seat and a detector assembly. The connecting seat is a circular ring seat with a connecting frame surrounding the outer peripheral wall, and a mounting portion is provided on the connecting frame. The mounting portion includes a detector mounting portion, and the detector assembly is arranged on the detector mounting portion. The detector mounting portion is connected to a ray receiving slot. The detector mounting portion includes a plurality of detector sub-mounting portions arranged in sequence along the circumference of the circular ring seat, and a partition structure is provided between two adjacent detector sub-mounting portions. Since the space occupied by the ray receiving slot is relatively large, the opening of the circular ring seat is relatively large, resulting in a reduction in the rigidity and strength of the circular ring seat. The detector mounting portion is divided into a plurality of detector sub-mounting portions, and the partition structure between the detector sub-mounting portions is erected on a larger ray receiving slot, which can increase the rigidity and strength of the connecting seat.

[0036] Furthermore, the detector assembly includes a main detection unit and two auxiliary detection units. The main detection unit is arranged on the main detector mounting part, and the auxiliary detection unit is installed on the auxiliary detector mounting part through a mounting seat. The mounting seat is detachably connected to the auxiliary detector mounting part. Such an arrangement can selectively raise or lower the mounting seat by replacing the mounting seat, so that the arc where the auxiliary detection unit is located and the arc where the main detection unit is located are located on the same arc shape or on different arc lines to adapt to the design of different detection optical paths, so that one connecting seat can be compatible with the design of the detection optical path with a standard arc arrangement and the design of a non-standard arc arrangement, which has better versatility and reduced costs.

[0037] The CT detection machine provided by the present invention comprises a fixing device and the above-mentioned rotating device. The rotating device has a simple structure, is easy to cast, and does not affect the rigidity and strength of the rotating device. At the same time, the rotating device divides the detector assembly into a main detection unit and two auxiliary detection units, and installs the auxiliary detection units on the auxiliary detector mounting part through a mounting seat, so that the auxiliary detection units can be located on the same arc line or on a different arc line as the main detection unit by replacing the mounting seat, so as to be compatible with the detection optical path of the standard arc and the non-standard arc design, and has better versatility, thereby reducing the cost of the CT detection machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 The structure of the CT detection machine provided by the first embodiment of the present invention is shown in FIG. Figure 1 ;

[0039] Figure 2 The structure of the CT detection machine provided by the first embodiment of the present invention is shown in FIG. Figure 2 ;

[0040] Figure 3 This is a schematic diagram of the structure of the fixing device provided in the first embodiment of the present invention. Figure 1 ;

[0041] Figure 4 This is a schematic diagram of the structure of the fixing device provided in the first embodiment of the present invention. Figure 2 ;

[0042] Figure 5 The structure of the rotating device for CT detection machine provided in the first embodiment of the present invention is shown in FIG. Figure 1 ;

[0043] Figure 6 The structure of the rotating device for CT detection machine provided in the first embodiment of the present invention is shown in FIG. Figure 2 ;

[0044] Figure 7 This is a schematic diagram of the structure of the connection socket provided in the first embodiment of the present invention. Figure 1 ;

[0045] Figure 8 This is a schematic diagram of the structure of the connection socket provided in the first embodiment of the present invention. Figure 2 ;

[0046] Fig. 9 is a structural schematic diagram of a main detection unit provided in Embodiment 1 of the present invention;

[0047] Fig.10 This is a schematic diagram of the structure of the connection socket provided in the first embodiment of the present invention. Figure 3 ;

[0048] Fig.11 Schematic diagram of the assembly of the auxiliary detection unit and the mounting base provided in the first embodiment of the present invention Figure 1 ;

[0049] Fig.12 Schematic diagram of the assembly of the auxiliary detection unit and the mounting base provided in the first embodiment of the present invention Figure 2 ;

[0050] Fig.13 is a side view of the outer peripheral wall of the connecting seat provided in the first embodiment of the present invention;

[0051] Fig.14 is a side view of the inner peripheral wall of the connecting seat provided in the first embodiment of the present invention;

[0052] Fig.15 This is a schematic diagram of the structure of the connecting socket provided in the second embodiment of the present invention. Figure 1 ;

[0053] Fig.16 This is a schematic diagram of the structure of the connecting socket provided in the second embodiment of the present invention. Figure 2 ;

[0054] Fig.17 is a side view of the outer peripheral wall of the connecting seat provided in the second embodiment of the present invention;

[0055] Fig.18 It is a side view of the inner peripheral wall of the connecting seat provided in the second embodiment of the present invention.

[0056] In the figure:

[0057] 100. Fixing device; 101. Bracket; 102. Slip ring bearing;

[0058] 200, driving device; 201, driving motor; 202, conveyor belt;

[0059] 300, rotating device;

[0060] 1. Connecting seat; 11. Circular seat; 111. Radiation emitting slot; 112. Radiation receiving slot; 12. Connecting frame; 121. First reference frame; 122. Second reference frame; 123. End plate; 124. Insertion limit slot; 125. Mounting boss; 1251. First mounting boss; 1252. Second mounting boss; 126. Support plate; 13. Convex rib;

[0061] 2. Detector assembly; 21. Main detection unit; 211. Main detection sheet; 22. Auxiliary detection unit; 221. Auxiliary detection sheet;

[0062] 3. Mounting seat; 31. Seat body; 311. Mounting plate; 312. First connecting plate; 313. Second connecting plate; 314. Connecting rib plate; 32. Load-bearing plate;

[0063] 4. Radiation source;

[0064] 5. Electronic control integrated components;

[0065] 6. Cooling components;

[0066] 7. Mask body. DETAILED DESCRIPTION

[0067] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0068] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0069] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0070] Unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in contact with the second feature through another feature between them instead of being in direct contact. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0071] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0072] Embodiment 1:

[0073] like Figure 1-Figure 4 As shown, this embodiment provides a CT detector, which includes a fixing device 100, a rotating device 300 and a driving device 200. The fixing device 100 includes a bracket 101 and a slip ring bearing 102. The bracket 101 is provided with a mounting hole, and the slip ring bearing 102 is arranged in the mounting hole. The slip ring bearing 102 is connected to the rotating device 300. The driving device 200 includes a driving motor 201, a pulley and a conveyor belt 202. The driving motor 201 is fixed to the bracket 101. The main shaft of the driving motor 201 is connected to the pulley. The conveyor belt 202 is used to connect the pulley and the slip ring bearing 102. The rotating device 300 is installed on the slip ring bearing 102. The driving motor 201 drives the pulley to rotate through the main shaft. The pulley drives the slip ring bearing 102 to rotate through the conveyor belt 202, and then drives the rotating device 300 to rotate, thereby realizing tomographic scanning.

[0074] like Figure 5-Figure 6 As shown, this embodiment provides a rotating device for a CT detector, which is applied to the above-mentioned CT detector. The rotating device for a CT detector includes a ray source 4, an electric control integrated component 5, a cooling component 6, a detector component 2 and a connecting seat 1. The ray source 4 is used to emit X-rays, and the detector component 2 can receive X-rays and convert X-ray energy into an electrical signal that can be recorded to make a judgment on the detected object. The electric control integrated component 5 is used to control the ray source 4 and provide electrical energy, and the cooling component 6 is used to dissipate heat for the ray source 4. The ray source 4, the electric control integrated component 5, the cooling component 6 and the detector component 2 are all arranged on the outer peripheral wall of the connecting seat 1. The ray source 4 is arranged opposite to the detector component 2, and the detector component 2 can receive X-rays within the ray range emitted by the ray source 4. The electric control integrated component 5 and the cooling component 6 are respectively arranged on both sides of the ray source 4.

[0075] Specifically, Figure 7-10 As shown, the connection seat 1 includes a circular ring seat 11 and a connection frame 12. The connection frame 12 is arranged around the outer peripheral wall of the circular ring seat 11, and a mounting portion is arranged on the connection frame 12. The mounting portion includes a ray source mounting portion, a detector mounting portion, an integrated component mounting portion and a cooling component mounting portion. The ray source mounting portion and the detector mounting portion are relatively arranged on the outer peripheral wall of the circular ring seat 11. The ray source 4 is installed on the ray source mounting portion, and the detector assembly 2 is installed on the detector mounting portion. The integrated component mounting portion and the cooling component mounting portion are respectively located on both sides of the ray source mounting portion, the electric control integrated component 5 is arranged on the integrated component mounting portion, and the cooling component 6 is arranged on the cooling component mounting portion.

[0076] Furthermore, the connecting frame 12 includes a first reference frame 121 and a second reference frame 122 , both of which surround the outer circumferential wall of the annular seat 11 and are spaced apart along the axial direction of the annular seat 11 , and a mounting portion is formed between the first reference frame 121 and the second reference frame 122 .

[0077] Specifically, the mounting portion includes a plurality of mounting bosses 125, and the ray source 4, the electric control integrated assembly 5, and the cooling assembly 6 are all mounted on the mounting bosses 125. In this embodiment, the ray source 4, the electric control integrated assembly 5, and the cooling assembly 6 can be directly mounted on the connecting frame 12, which greatly reduces the processing of the mounting surface, and the annular seat 11 and the connecting frame 12 are cast as an integrally formed part, which has a simple structure, reduces the overall weight, and reduces the processing cost.

[0078] Further, the mounting boss 125 includes a first mounting boss 1251 and a second mounting boss 1252, the first mounting boss 1251 is arranged across the first reference frame 121 and the second reference frame 122, the ray source mounting portion includes two first mounting bosses 1251 arranged opposite to each other, and the ray source 4 is mounted on the two first mounting bosses 1251 by fastening screws. The second mounting boss 1252 is arranged on the end surface or one side of the first reference frame 121 and the second reference frame 122, the integrated component mounting portion and the cooling component mounting portion are both provided with four second mounting bosses 1252, and the electric control integrated component 5 and the cooling component 6 are both mounted on the four second mounting bosses 1252 of the mounting portions corresponding to them by fastening screws.

[0079] Since the detector assembly 2 needs to receive X-rays emitted by the radiation source 4, a ray emitting slot 111 and a ray receiving slot 112 are provided on the annular seat 11. The ray emitting slot 111 is connected to the radiation source mounting portion, and the detector mounting portion is connected to the ray receiving slot 112. The X-rays emitted by the radiation source 4 reach the detector assembly 2 via the ray emitting slot 111 and the ray receiving slot 112.

[0080] Usually, when emitting X-rays, the radiation source 4 forms a fan-shaped body with the emission point of the radiation source 4 as the starting point. Therefore, in order to ensure that all X-rays can be received, the detector assembly 2 usually occupies a larger space on the outer wall of the connecting frame 12, and the space on the outer wall of the annular seat 11 occupied by the radiation receiving groove 112 is also larger, so that a larger opening is formed on the annular seat 11, thereby reducing the rigidity and strength of the annular seat 11.

[0081] In order to solve the above problems, the detector mounting part provided in this embodiment includes a plurality of detector sub-mounting parts arranged in sequence along the circumference of the annular seat 11, a partition structure is arranged between two adjacent detector sub-mounting parts, and the detector assembly includes a plurality of detection units, and the plurality of detection units are mounted on the plurality of detector sub-mounting parts in a one-to-one correspondence. The detector mounting part is divided into a plurality of detector sub-mounting parts, and the partition structure between the detector sub-mounting parts is mounted on a larger ray receiving slot 112, which can increase the rigidity and strength of the connecting seat 1.

[0082] In this embodiment, the plurality of detection units include a main detection unit 21 and two auxiliary detection units 22, each auxiliary detection unit 22 is provided with a mounting seat 3, the auxiliary detection unit 22 is installed in the mounting seat 3, the plurality of detector sub-mounting parts include a main detector mounting part and two auxiliary detector mounting parts, the two auxiliary detector mounting parts are respectively arranged on both sides of the main detector mounting part, and further, the partition structure includes an end plate 123, the end plate 123 is mounted on the ray receiving slot 112, and the main detector mounting part is formed between the two end plates 123. The two ends of the end plate 123 are respectively connected to the first reference frame 121 and the second reference frame 122, and are mounted on the ray receiving slot 112, which can avoid the rigidity and strength of the connecting frame 12 being reduced due to the excessive opening of the ray receiving slot 112.

[0083] Of course, in other embodiments, the number of the detection units may be five, seven, nine or other numbers, all of which are symmetrically arranged with the main detection unit 21 as the center.

[0084] Specifically, the main detection unit 21 includes a plurality of main detection pieces 211, and the plurality of main detection pieces 211 are installed side by side between the two end plates 123. In the main detector installation part, a support plate 126 is provided on the side where the first reference frame 121 and the second reference frame 122 are close to each other, and both ends of each main detection piece 211 are connected to the support plate 126 by fastening screws.

[0085] like Fig.11 and Fig.12As shown, the mounting base 3 includes a base body 31 and a bearing plate 32, the auxiliary detection unit 22 includes a plurality of auxiliary detection pieces 221, the plurality of auxiliary detection pieces 221 are mounted side by side on the bearing plate 32, the bearing plate 32 is arranged on the base body 31, and the base body 31 is detachably connected to the auxiliary detector mounting portion. The end surface of the first reference frame 121 and the end surface of the second reference frame 122 located at the auxiliary detector mounting portion are adapted to the shape of the base body 31, so that the base body 31 can be fixed to the end surface of the first reference frame 121 and the end surface of the second reference frame 122 by fastening screws.

[0086] In order to effectively shield the X-rays emitted by the radiation source 4 and prevent the X-rays from leaking out, the detector assembly 2 also includes a cover body 7, which is arranged on the main detection unit 21 and the base body 31, and the cover body 7 is connected to the end face of the first reference frame 121, the end face of the second reference frame 122 and the base body 31 located at the main detector mounting part through fastening screws.

[0087] Due to different requirements of the detected objects, the detection optical path of the CT detection machine includes a standard arc design and a non-standard arc design. In the prior art, different rotating devices 300 are usually required to adapt to the detection optical path with a standard arc design and a non-standard arc design, respectively, resulting in increased costs.

[0088] The connection base 1 provided in this embodiment can selectively make the arc where the auxiliary detection unit 22 is located and the arc where the main detection unit 21 is located be located on the same arc line or on different arc lines by replacing the mounting base 3. By changing the structure of the mounting base 3 and increasing or decreasing the thickness of the mounting base 3, the arc where the auxiliary detection unit 22 is located and the arc where the main detection unit 21 is located can be selectively made to be located on the same arc shape or on different arc lines by replacing the mounting base 3 to adapt to the design of different detection light paths, so that one connection base 1 can be compatible with the design of the detection light path being arranged in a standard arc and the design of a non-standard arc, with better versatility and reduced cost.

[0089] Furthermore, the bearing plate 32 is detachably connected to the seat body 31, and by replacing the bearing plates 32 of different thicknesses, the arc where the auxiliary detection unit 22 is located and the arc where the main detection unit 21 is located can be selectively located on the same arc line or on different arc lines. Exemplarily, if the arc where the auxiliary detection unit 22 is located and the arc where the main detection unit 21 is located are located on the same arc line, the thickness of the bearing plate 32 is h; then, if the arc where the auxiliary detection unit 22 is located is close to the center of the annular seat 11 relative to the arc where the main detection unit 21 is located, the thickness of the bearing plate 32 is greater than h; if the arc where the auxiliary detection unit 22 is located is far away from the center of the annular seat 11 relative to the arc where the main detection unit 21 is located, the thickness of the bearing plate 32 is less than h.

[0090] In this embodiment, by detachably connecting the bearing plate 32 to the seat body 31, the versatility of the rotating device 300 can be met by simply replacing the bearing plate 32. Of course, in other embodiments, the bearing plate 32 and the seat body 31 can also be integrally arranged, and the versatility of the rotating device 300 can be met by replacing the mounting seat 3.

[0091] Further, continue to refer to Figure 7 and Figure 8 A plug-in limit groove 124 is formed between the auxiliary detector mounting portion and the end plate 123, and a plug-in limit portion is provided on the seat body 31, and the plug-in limit portion cooperates with the plug-in limit groove 124 to plug the seat body 31 into the auxiliary detector mounting portion. After the main detection unit 21 is installed in the main detector mounting portion, the mounting seat 3 with the auxiliary detection unit 22 installed is plugged into the auxiliary detector mounting portion from the side of the main detector mounting portion, and after the mounting seat 3 is positioned, the seat body 31 is fixed to the auxiliary detector mounting portion by tightening screws.

[0092] Specifically, the seat body 31 includes a mounting plate 311, a first connecting plate 312 and a second connecting plate 313. The bearing plate 32 is detachably connected to the mounting plate 311. The first connecting plate 312 is arranged at one end of the mounting plate 311 and is arranged perpendicular to the mounting plate 311. The bearing plate 32 is arranged to protrude from one end of the mounting plate 311 and form a plug-in limiting portion with the first connecting plate 312. The mounting plate 311 is plugged into the plug-in limiting groove 124, and the first connecting plate 312 abuts against the end plate 123. The second connecting plate 313 is bent downward from the other end of the mounting plate 311 and abuts against the end surfaces of the first reference frame 121 and the second reference frame 122. A connecting rib plate 314 is also arranged between the first connecting plate 312 and the mounting plate 311, and the cover body 7 is connected to the connecting rib plate 314.

[0093] Specifically, in this embodiment, two connecting ribs 314 are arranged opposite to each other, and threaded holes are arranged on the two connecting ribs 314 . The fastening screws pass through the cover body 7 and are screwed to the threaded holes on the connecting ribs 314 .

[0094] The X-rays emitted by the radiation source 4 are received by the detector assembly 2 through the radiation emission slot 111 and the radiation receiving slot 112. The radiation emission slot 111 is the first constraint limit of the X-rays, and the radiation receiving slot 112 is the second constraint limit of the X-rays. Usually, there are a small amount of scattered X-rays on the inner circumferential wall of the annular seat 11. In order to better shield the X-rays and prevent the X-rays from leaking out and endangering human health. The inner wall of the radiation emission slot 111 and the inner wall of the radiation receiving slot 112 are both provided with a first radiation shielding coating, and the inner circumferential wall of the annular seat 11 is provided with a second radiation shielding coating. The thickness of the first radiation shielding coating is greater than the thickness of the second radiation shielding coating. In this embodiment, the radiation shielding coating is a lead coating.

[0095] Furthermore, the inner circumferential wall of the annular seat 11 is set to a smooth surface. The setting of the smooth surface is more convenient for coating the second radiation shielding coating and can reduce the amount of lead used.

[0096] Specifically, the ray emitting slot 111 and the ray receiving slot 112 are both located between the first reference frame 121 and the second reference frame 122. The ray emitting slot 111 and the ray receiving slot 112 both include a first side wall and a second side wall spaced apart along the axial direction of the annular seat 11. The first side wall is parallel to the side wall of the first reference frame 121, and the second side wall is parallel to the side wall of the second reference frame 122.

[0097] like Fig.13 and Fig.14 As shown, further, along the axial direction of the annular seat 11, the first reference frame 121 and the second reference frame 122 are arranged at a preset angle, and the first reference frame 121 and the second reference frame 122 both extend from the center point of the ray source mounting portion to the direction of the main detector mounting portion, so that the distance between the first reference frame 121 and the second reference frame 122 is larger as it is closer to the detector mounting portion, thereby satisfying the installation of the detection assembly 2. Since the first ray shielding coating coated on the inner wall of the ray emitting slot 111 and the inner wall of the ray receiving slot 112 is thicker, the shape of the ray emitting slot 111 and the shape of the ray receiving slot 112 determine the coating area of ​​the first ray shielding coating, by arranging the first reference frame 121 and the second reference frame 122 at a preset angle, the preset angle is set according to the X-ray cone angle emitted by the ray source 4, not only can the ray emitting slot 111 and the ray receiving slot 112 pass all the X-rays emitted by the ray source 4, but also the coating area of ​​the first ray shielding coating is minimized, so as to minimize the amount of lead used and further reduce the cost.

[0098] Since the first reference frame 121 and the second reference frame 122 are arranged at a preset angle, in order to meet the installation requirements of the ray source 4, the electronic control integrated component 5 and the cooling component 6, the second mounting boss 1252 of the ray source mounting part, the integrated component mounting part and the cooling component mounting part is arranged on the side away from the first reference frame 121 and the second reference frame 122.

[0099] In addition, since the closer to the radiation source mounting portion, the smaller the spacing between the first reference frame 121 and the second reference frame 122, correspondingly, the spacing between the first reference frame 121 and the end of the corresponding annular seat 11 and the spacing between the second reference frame 122 and the end of the corresponding annular seat 11 will be larger. The end of the annular seat 11 close to the second reference frame 122 is connected to the slip ring bearing 102, and the end of the annular seat 11 connected to the slip ring bearing 102 is provided with a plurality of threaded holes at intervals, and is connected to the slip ring bearing 102 through the plurality of threaded holes. In order to ensure the rigidity and strength of the annular seat 11, a convex rib 13 extending from the first reference frame 121 to the end of the annular seat 11 corresponding to it is provided on the annular seat 11.

[0100] The rotating device for a CT detector provided in this embodiment adopts a highly integrated cast connection seat 1, and directly mounts the radiation source 4, the electric control integrated component 5 and the cooling component 6 on the connection frame 12, minimizes the number of adapters, reduces the number and types of mounting parts, and realizes the lightweight design of the rotating device 300. Correspondingly, the load of the slip ring bearing 102 and the bracket 101 in the fixing device 100 of the CT detector using the above-mentioned rotating device 300 is reduced, and the driving device 200 can also select a driving motor 201 with a smaller power, thereby realizing the lightweight design of the CT detector and greatly reducing the cost of the CT detector.

[0101] The CT detection machine provided in this embodiment uses the above-mentioned rotating device of the CT detection machine, which is not only easy to process and manufacture, but also can ensure the rigidity and strength of the rotating device 300; and is applicable to designs with standard arcs and non-standard arcs in the detection light path, has better versatility, and reduces the cost of the CT detection machine.

[0102] Embodiment 2:

[0103] This embodiment provides a rotating device for a CT detector, which is applied to the CT detector in the first embodiment. The rotating device for a CT detector provided in this embodiment has a substantially same structure as that of the rotating device for a CT detector provided in the first embodiment, and the same structure will not be described in detail here. The difference between the rotating device for a CT detector provided in this embodiment and the rotating device for a CT detector provided in the first embodiment is that:

[0104] like Figure 15-18 As shown, the first reference frame 121 and the second reference frame 122 are arranged in parallel along the axial direction of the annular seat 11. Accordingly, viewed from the side, the ray emitting slot 111 and the ray receiving slot 112 are both rectangular.

[0105] In this embodiment, the second mounting bosses 1252 are disposed on the end surfaces of the first reference frame 121 and the second reference frame 122. To facilitate the installation of the radiation source 4, the end surfaces of the first reference frame 121 and the second reference frame 122 between the two first mounting bosses 1251 are processed into a horizontal surface.

[0106] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The content of this specification should not be understood as limiting the present invention.

Claims

1. A rotating device for a CT detector, characterized in that: include: A connecting seat (1) comprises a circular ring seat (11) and a connecting frame (12), wherein the connecting frame (12) is arranged around the outer peripheral wall of the circular ring seat (11), and a mounting portion is arranged on the connecting frame (12); A detector assembly (2), wherein the mounting portion comprises a detector mounting portion, the detector assembly (2) is arranged on the detector mounting portion, a ray receiving groove (112) is provided on the annular seat (11), and the detector mounting portion is in communication with the ray receiving groove (112); The detector mounting portion comprises a plurality of detector sub-mounting portions arranged in sequence along the circumference of the annular seat (11), a partition structure being arranged between two adjacent detector sub-mounting portions, and the detector assembly (2) comprises a plurality of detection units, wherein the plurality of detection units are mounted on the plurality of detector sub-mounting portions in a one-to-one correspondence.

2. The rotating device for a CT detector according to claim 1, characterized in that: The plurality of detector sub-mounting parts include a main detector mounting part and two auxiliary detector mounting parts, and the two auxiliary detector mounting parts are respectively arranged on both sides of the main detector mounting part; The partition structure comprises an end plate (123), the end plate (123) is mounted on the ray receiving slot (112), and the main detector mounting portion is formed between the two end plates (123).

3. The rotating device for a CT detector according to claim 2, characterized in that: The plurality of detection units include a main detection unit (21) and two auxiliary detection units (22), the main detection unit (21) being mounted on the main detector mounting portion, and the auxiliary detection unit (22) being mounted on the auxiliary detector mounting portion; Each auxiliary detection unit (22) is provided with a corresponding mounting seat (3); the auxiliary detection unit (22) is mounted in the mounting seat (3); and the mounting seat (3) is detachably connected to the auxiliary detector mounting portion.

4. The rotating device for a CT detector according to claim 3, characterized in that: The mounting seat (3) comprises a seat body (31) and a bearing plate (32), the auxiliary detection unit (22) is mounted on the bearing plate (32), the bearing plate (32) is arranged on the seat body (31), and the seat body (31) is detachably connected to the auxiliary detector mounting portion.

5. The rotating device for a CT detector according to claim 4, characterized in that: The carrying plate (32) is detachably connected to the seat body (31).

6. The rotating device for CT detection machine according to claim 4, characterized in that: The detector assembly further comprises a cover body (7), wherein the cover body (7) is arranged to cover the main detection unit (21) and the base body (31).

7. The rotating device for a CT detector according to claim 6, characterized in that: A plug-in limiting groove (124) is formed between the auxiliary detector mounting portion and the end plate (123), and a plug-in limiting portion is provided on the seat body (31), and the plug-in limiting portion cooperates with the plug-in limiting groove (124) to plug the seat body (31) into the auxiliary detector mounting portion.

8. The rotating device for a CT detector according to claim 7, characterized in that: The seat body (31) comprises a mounting plate (311), a first connecting plate (312) and a second connecting plate (313); the bearing plate (32) is detachably connected to the mounting plate (311); the first connecting plate (312) is arranged at one end of the mounting plate (311) and is arranged perpendicular to the mounting plate (311); the bearing plate (32) is arranged to protrude from one end of the mounting plate (311) and forms the plug-in limiting portion with the first connecting plate (312); the mounting plate (311) is plugged into the plug-in limiting groove (124); the first connecting plate (312) is in contact with the end plate (123); the second connecting plate (313) is bent downward from the other end of the mounting plate (311) and is in contact with the end surface of the connecting frame (12).

9. The rotating device for a CT detector according to claim 8, characterized in that: A connecting rib plate (314) is also provided between the first connecting plate (312) and the mounting plate (311), and the cover body (7) is connected to the connecting rib plate (314).

10. The rotating device for a CT detector according to any one of claims 2 to 9, characterized in that: The rotating device further comprises a radiation source (4), the radiation source (4) being used to emit X-rays; the mounting portion further comprises a radiation source mounting portion, the radiation source mounting portion and the main detector mounting portion being arranged on the outer peripheral wall of the annular seat (11) relative to each other, the radiation source (4) being mounted on the radiation source mounting portion; The annular seat (11) is provided with a ray emitting slot (111), the ray emitting slot (111) being in communication with the ray source mounting portion, and the X-rays emitted by the ray source (4) are transmitted to the detector assembly (2) via the ray emitting slot (111) and the ray receiving slot (112).

11. The rotating device for a CT detector according to claim 10, characterized in that: The connecting frame (12) comprises a first reference frame (121) and a second reference frame (122), wherein the first reference frame (121) and the second reference frame (122) are both arranged around the outer peripheral wall of the annular seat (11) and are spaced apart along the axial direction of the annular seat (11), and the mounting portion is formed between the first reference frame (121) and the second reference frame (122); The ray emitting slot (111) and the ray receiving slot (112) are both located between the first reference frame (121) and the second reference frame (122), and the ray emitting slot (111) and the ray receiving slot (112) both include a first side wall and a second side wall spaced apart along the axial direction of the annular seat (11), wherein the first side wall is parallel to the side wall of the first reference frame (121), and the second side wall is parallel to the side wall of the second reference frame (122).

12. The rotating device for a CT detector according to claim 11, characterized in that: Along the axial direction of the annular seat (11), the first reference frame (121) and the second reference frame (122) are arranged in parallel.

13. The rotating device for a CT detector according to claim 11, characterized in that: Along the axial direction of the annular seat (11), the first reference frame (121) and the second reference frame (122) are arranged at a preset angle, and both the first reference frame (121) and the second reference frame (122) extend from the center point of the ray source mounting portion toward the main detector mounting portion.

14. The rotating device for a CT detector according to claim 12 or 13, characterized in that: The inner wall of the ray emitting slot (111) and the inner wall of the ray receiving slot (112) are both provided with a first ray shielding coating, and the inner peripheral wall of the annular seat (11) is provided with a second ray shielding coating, and the thickness of the first ray shielding coating is greater than the thickness of the second ray shielding coating.

15. The rotating device for a CT detector according to claim 14, characterized in that: The inner peripheral wall of the annular seat (11) is arranged to be a smooth surface.

16. The rotating device for a CT detector according to claim 11, characterized in that: The rotating device further comprises an electric control integrated component (5) and a cooling component (6), wherein the electric control integrated component (5) is used to control the radiation source (4) and provide electrical energy, and the cooling component (6) is used to dissipate heat for the radiation source (4); The mounting portion further comprises an integrated component mounting portion and a cooling component mounting portion, wherein the integrated component mounting portion and the cooling component mounting portion are respectively located on two sides of the radiation source mounting portion, the electric control integrated component (5) is arranged on the integrated component mounting portion, and the cooling component (6) is arranged on the cooling component mounting portion.

17. The rotating device for a CT detector according to claim 16, characterized in that: The mounting portion comprises a plurality of mounting bosses (125), and the ray source (4), the electric control integrated component (5) and the cooling component (6) are all mounted on the mounting bosses (125).

18. The rotating device for a CT detector according to claim 17, characterized in that: The mounting boss (125) comprises a first mounting boss (1251) and a second mounting boss (1252), the first mounting boss (1251) being arranged across the first reference frame (121) and the second reference frame (122), the ray source mounting portion comprising two first mounting bosses (1251) arranged opposite to each other, and the ray source (4) is mounted on the two first mounting bosses (1251); The second mounting boss (1252) is arranged on the end surface or one side of the first reference frame (121) and the second reference frame (122), and the integrated component mounting portion and the cooling component mounting portion are each provided with four second mounting bosses (1252), and the electronic control integrated component (5) and the cooling component (6) are respectively mounted on the four second mounting bosses (1252).

19. CT detection machine, characterized in that, The CT detection machine comprises a fixing device (100) and a rotating device for a CT detection machine according to any one of claims 1 to 18, wherein the fixing device (100) comprises a bracket (101) and a slip ring bearing (102), wherein a mounting hole is provided on the bracket (101), the slip ring bearing (102) is arranged in the mounting hole, and the slip ring bearing (102) is connected to the rotating device.

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