A high-energy industrial spiral CT system

Abstract

The present application relates to a kind of high-energy industrial spiral CT systems, belong to CT scanning technical field, solve the scanning difficult problem of oversized workpiece.The CT system of the present application includes: workpiece conveying mechanism and scanning system;Workpiece conveying mechanism includes: support platform, first linear conveying component, second linear conveying component and driving device;Support platform is slidably installed above first linear conveying component and can be driven displacement by driving device;First linear conveying component and second linear conveying component are respectively arranged at the front and rear of scanning system;Scanning system includes: scanning assembly, rotating slip ring component and support assembly;Scanning assembly is rotatably installed on the support assembly by rotating slip ring component, and scanning assembly can scan the workpiece to be measured when rotating.The present application realizes the scanning of large-size workpiece and does not need workpiece rotation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of CT, in particular to a high-energy industrial spiral CT system. BACKGROUND

[0002] The ray source and detector of the high-energy CT detection system in the current market are generally vertically or horizontally moved, and are matched with the rotation of the measured workpiece to realize scanning, which has high requirements on the scanning posture of the measured workpiece, and it is difficult to realize the function of transverse rotation or vertical placement rotation of the oversized workpiece, thereby limiting the scanning of the oversized workpiece.

[0003] In addition, the scanning condition of the existing oversized workpiece (greater than 1.5 m) has high power supply requirements for the large-diameter high-energy CT scanning equipment, and generally offline detection is required, and the CT detection has certain limitations.

[0004] Therefore, the present application provides a high-energy industrial spiral CT system to improve the flexibility of the rapid scanning operation of the oversized workpiece and realize online detection. SUMMARY

[0005] In view of the above analysis, the present application aims to provide a high-energy industrial spiral CT system to solve the problem of limited scanning capacity of the existing high-energy CT system for oversized workpieces.

[0006] The purpose of the present application is mainly realized through the following technical solutions:

[0007] A high-energy industrial spiral CT system, comprising: a workpiece conveying mechanism and a scanning system;

[0008] The workpiece conveying mechanism comprises a support platform, a first linear conveying assembly, a second linear conveying assembly and a driving device;

[0009] The support platform is used for supporting a workpiece to be measured; the support platform is slidingly installed above the first linear conveying assembly and can be driven to displace by the driving device; the second linear conveying assembly is arranged side by side with the first linear conveying assembly and is used for supporting the support platform; when the support platform is driven to displace by the driving device to the position of the scanning system, the scanning system can scan the workpiece to be measured;

[0010] The scanning system comprises a scanning assembly, a rotating slip ring assembly and a support assembly; the scanning assembly is rotatably installed on the support assembly through the rotating slip ring assembly, and the scanning assembly can scan the workpiece to be measured when rotating.

[0011] Further, the scanning assembly comprises a high-energy ray source and a detector; the high-energy ray source is used for emitting X-rays, and the detector is used for detecting the transmitted rays to obtain measurement data.

[0012] Further, the scanning assembly further comprises a linear accelerator, a modulator PU and a modulator TU.

[0013] Further, the scanning assembly further comprises a rotary frame and fans; the fans are provided in plurality and are arranged in a line on the rotary frame.

[0014] Further, the support assembly comprises a support frame, a second driving gear, a rotary motor and a rotating gear; the rotating gear is fixedly connected with the scanning assembly, the rotating gear is rotatably connected with the support frame through the rotating slip ring assembly; the rotary motor can drive the second driving gear to rotate; the second driving gear is engaged with the rotating gear, so that the rotary motor can drive the scanning assembly to rotate.

[0015] Further, the first linear conveying assembly and the second linear conveying assembly have the same structure; the first linear conveying assembly and the second linear conveying assembly each comprise a support frame, a leveling hook and a support wheel assembly; the support wheel assembly is arranged in two rows above the support frame and is used for rolling supporting the support platform; the leveling hook is installed at the bottom of the support frame and is used for adjusting the height of the support frame.

[0016] Further, the driving device comprises a first driving motor, a lead screw, a lead screw nut and a hinged seat; the first driving motor and the hinged seat are fixedly installed above the first linear conveying assembly; one end of the lead screw is fixedly connected with the output shaft of the first driving motor, and the other end is rotatably connected with the hinged seat; the lead screw nut and the lead screw form a lead screw nut pair; the lead screw nut is fixedly connected with the lower surface of the support platform; when the first driving motor drives the lead screw to rotate, the lead screw nut can drive the support platform to linearly displace.

[0017] Further, the first linear conveying assembly is further provided with a sliding block platform and a sliding block guide rail; the sliding block platform is slidingly installed above the sliding block guide rail; the support platform is fixedly installed above the sliding block platform.

[0018] Further, the sliding block guide rail is provided with two parallel sliding block guide rails.

[0019] Further, the first linear conveying assembly is further provided with a laser lamp, and the second linear conveying assembly is provided with a plurality of laser targets with scales; the laser lamp is used for emitting a laser beam; whether the scales on the laser targets are consistent when the laser beam irradiates on the laser targets is used for judging whether the workpiece conveying mechanism is horizontal.

[0020] The technical scheme of the present application can at least achieve one of the following effects:

[0021] (1) The high-energy industrial spiral CT system is used for high-density workpiece defect detection.

[0022] (2) The high-energy industrial spiral CT system is used for high-density workpiece defect detection.

[0023] (3) The high-energy industrial spiral CT system is used for high-density workpiece defect detection.

[0024] The above technical solutions can be combined with each other to achieve more preferred combination solutions. BRIEF DESCRIPTION OF DRAWINGS

[0025] The accompanying drawings are included to provide a further understanding of the application, and are incorporated in and constitute a part of this specification.

[0026] Figure 1 Figure 1 is a standby state schematic diagram of the high-energy industrial spiral CT system of the embodiment 1 of the application;

[0027] Figure 2 Figure 2 is a workpiece conveying state schematic diagram of the high-energy industrial spiral CT system of the embodiment 1 of the application;

[0028] Figure 3The schematic diagram of the workpiece scanning state of the high-energy industrial helical CT system of the embodiment 1 of the present application;

[0029] Figure 4 The schematic diagram of the structural composition of the high-energy industrial helical CT system of the embodiment 1 of the present application;

[0030] Figure 5 The schematic diagram of the structure of the workpiece conveying mechanism of the high-energy industrial helical CT system of the embodiment 1 of the present application;

[0031] Figure 6 The top view of the workpiece conveying mechanism of the high-energy industrial helical CT system of the embodiment 1 of the present application;

[0032] Figure 7 The front structural schematic of the scanning system of the high-energy industrial helical CT system of the embodiment 1 of the present application;

[0033] Figure 8 The back structural schematic of the scanning system of the high-energy industrial helical CT system of the embodiment 1 of the present application;

[0034] Figure 9 The schematic diagram of the structural composition of the rotating slip ring assembly of the scanning system of the high-energy industrial helical CT system of the embodiment 2 of the present application;

[0035] Figure 10 The combined structural schematic of the rotating gear and the rotating outer ring of the rotating slip ring assembly of the embodiment 2 of the present application;

[0036] Figure 11 The structural schematic of the positioning inner ring of the rotating slip ring assembly of the embodiment 2 of the present application;

[0037] Figure 12 The installation schematic of the roller assembly of the rotating slip ring assembly of the embodiment 2 of the present application;

[0038] Figure 13 The structural schematic of the support platform of the workpiece conveying mechanism of the high-energy industrial helical CT system of the embodiment 3 of the present application;

[0039] Figure 14 The schematic diagram of the adjusting roller assembly of the support platform of the workpiece conveying mechanism of the high-energy industrial helical CT system of the embodiment 3 of the present application;

[0040] Figure 15 The structural schematic of the rotating roller of the adjusting roller assembly of the support platform of the embodiment 3 of the present application;

[0041] Figure 16 The side view of the rotating roller of the adjusting roller assembly of the support platform of the embodiment 3 of the present application;

[0042] Figure 17Structure schematic view of the synchronous driving assembly of the support platform of embodiment 3 of the present application.

[0043] Reference signs:

[0044] 1 - workpiece conveying mechanism; 2 - scanning system; 3 - workpiece to be measured; 4 - feeding table; 5 - discharging table; 6 - base;

[0045] 11 - support platform; 12 - first linear conveying assembly; 13 - second linear conveying assembly; 14 - driving device; 15 - support frame; 16 - leveling hook; 141 - first driving motor; 142 - screw rod; 143 - hinged seat; 144 - sliding block platform; 145 - sliding block guide rail;

[0046] 1101 - first adjusting roller assembly; 1102 - second adjusting roller assembly; 1103 - first mounting groove; 1104 - second mounting groove; 1105 - rotating shaft; 1106 - rotating roller; 1107 - synchronous gear; 1108 - first driving gear; 1109 - driven gear; 1110 - first bevel gear; 1111 - second bevel gear; 1112 - transmission rod; 1113 - transmission rod support; 1114 - transmission gear; 1115 - first positioning shaft; 1116 - second positioning shaft; 1106a - rotating drum; 1106b - half-moon-shaped protrusion;

[0047] 201 - rotary frame; 202 - cooler; 203 - linear accelerator; 204 - modulator PU; 205 - modulator TU; 206 - fan; 207 - support frame; 208 - rotating slip ring assembly; 209 - second driving gear; 210 - rotary motor; 211 - rotating gear;

[0048] 2081 - rotating outer ring; 2082 - positioning inner ring; 2083 - roller; 2084 - conductive slip ring; 2085 - positioning rotating shaft; 2086 - metal contact ring; 2087 - positioning bearing; 2088 - arc-shaped conductive ring. DETAILED DESCRIPTION

[0049] The preferred embodiments of the present application will be described in detail below with reference to the drawings, which form a part of this application, and together with the embodiments of the present application serve to explain the principles of the present application, and are not intended to limit the scope of the present application.

[0050] Embodiment 1

[0051] One specific embodiment of the present application discloses a high-energy industrial spiral CT system, as shown in Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 illustrated, comprising: a workpiece conveying mechanism 1 and a scanning system 2.

[0052] The workpiece conveying mechanism 1 includes: a support platform 11, a first linear conveying assembly 12, a second linear conveying assembly 13, and a driving device 14; the support platform 11 is used to support the workpiece to be tested; the support platform 11 is slidably mounted above the first linear conveying assembly 12 and can be driven to move by the driving device 14; the first linear conveying assembly 12 and the second linear conveying assembly 13 are respectively arranged on the front and rear sides of the scanning system 2, and a gap is left between them; when the driving device 14 drives the support platform 11 to move to the position of the scanning system 2, the support platform 11 is supported by the first linear conveying assembly 12 and the second linear conveying assembly 13; the scanning system 2 can scan the workpiece to be tested.

[0053] The scanning system 2 includes a scanning assembly, a rotary slip ring assembly 208, and a support assembly. The scanning assembly is rotatably mounted on the support assembly via the rotary slip ring assembly 208. When the scanning assembly rotates, it can scan the workpiece to be tested.

[0054] Furthermore, the scanning assembly includes a high-energy X-ray source and a detector; the high-energy X-ray source is used to emit X-rays, and the detector is used to detect transmitted X-rays to obtain measurement data.

[0055] Furthermore, such as Figure 7 As shown, the scanning assembly also includes: a linear accelerator 203, a modulator PU204, and a modulator TU205.

[0056] In this invention, the linear accelerator utilizes an electromagnetic field to accelerate charged particles to near the speed of light, generating X-rays upon impact. Compared to conventional X-ray flaw detectors, the generated X-rays are not only higher in energy but also higher in intensity. The electron linear accelerator for industrial CT scanners features high energy, high dose rate, high stability, and small size.

[0057] In this invention, modulators PU204 and TU205 are used to modulate and demodulate signals. Modulators PU204 and TU205 are standard configurations of the scanning assembly of spiral CT equipment, and their structural principles and working effects will not be described in detail in this invention.

[0058] Furthermore, the scanning assembly also includes a fan 206; multiple fans 206 are provided, and the multiple fans 206 are arranged in a linear pattern on the rotating frame 201.

[0059] Furthermore, such as Figure 8As shown, the support assembly comprises: a fixing frame 207, a second driving gear 209, a rotary motor 210 and a rotating gear 211; the rotating gear 211 is fixedly connected with the scanning assembly, and the rotating gear 211 is rotationally connected with the fixing frame 207 through the rotating slip ring assembly 208; the rotary motor 210 can drive the second driving gear 209 to rotate; the second driving gear 209 is engaged with the rotating gear 211, and thus the rotary motor 210 can drive the scanning assembly to rotate.

[0060] Further, the first linear conveying assembly 12 and the second linear conveying assembly 13 each comprises: a support frame 15, a leveling hook 16 and a support wheel assembly; the support wheel assembly is arranged in two rows above the support frame 15 and is used for rolling supporting the support platform 11; the leveling hook 16 is installed at the bottom of the support frame 15 and is used for adjusting the height of the support frame 15.

[0061] Further, as shown, Figure 6 Further, as shown,

[0062] Further, the first linear conveying assembly 12 is further provided with a sliding block guide rail 145; a sliding block platform 144 is slidingly installed above the sliding block guide rail 145; and the support platform 11 is fixedly installed above the sliding block platform 144.

[0063] Further, the sliding block guide rail 145 is provided with two parallel sliding block guide rails.

[0064] Further, the first linear conveying assembly 12 is further provided with a laser lamp, and the second linear conveying assembly 13 is provided with a plurality of laser targets with scales; the laser lamp is used for emitting a laser beam; whether the scales on the laser targets are consistent when the laser beam irradiates on the laser targets is used for judging whether the workpiece conveying mechanism is horizontal. The first linear conveying assembly 12 and the second linear conveying assembly 13 are horizontal and consistent in height, and the support platform 11 can be supported by the second linear conveying assembly 13 when the support platform 11 moves to extend out of the first linear conveying assembly 12.

[0065] The application designs that high-energy X-ray emitter and detector are integrated on the rotating mechanism of the scanning system 2, 360° continuous rotation can be realized, the linear displacement of the workpiece to be measured 3 is driven by the workpiece conveying mechanism 1, the internal structure of the oversized high-density workpiece can be spirally scanned, the high-quality structure image is generated, and the useful information for the user is extracted. The innovation of the system is that the high-energy X-ray spiral CT high-efficiency online detection is realized, the workpiece does not need to rotate, and the workpiece will not be damaged by additional detection. The quality of the workpiece is effectively ensured. There is great economic benefit and use benefit for the producer and the user.

[0066] Embodiment 2

[0067] One specific embodiment of the application is improved on the basis of embodiment 1:

[0068] In this embodiment, considering that the shapes of large-size workpieces are different, when the large-size workpiece of irregular shape is scanned, in order to ensure that the large-size workpiece can smoothly pass through the middle hole of the scanning assembly, the position of the large-size workpiece needs to be adjusted, the alignment direction of the large-size workpiece and the scanning assembly is adjusted to be consistent with the length direction and the conveying direction, so that the large-size workpiece can be smoothly scanned.

[0069] In this embodiment, the support platform 11 of the workpiece conveying mechanism 1 is improved and designed, so that the orientation adjustment of the large-size workpiece can be realized under the premise of bearing and lifting the large-size workpiece.

[0070] Specifically, as shown in the drawings, Figure 13 the first adjusting roller assembly 1101 and the second adjusting roller assembly 1102 are rotatably installed on the support platform 11; wherein the first adjusting roller assembly 1101 can push the workpiece to be measured 3 to rotate when rotating; the second adjusting roller assembly 1102 can push the workpiece to be measured 3 to displace left and right along the width direction of the support platform 11 when rotating; that is, in this embodiment, the shortest side of the workpiece to be measured 3 is aligned with the middle scanning hole of the scanning assembly by adjusting the rotation of the workpiece to be measured 3 by the first adjusting roller assembly 1101, so that the passability of the large-size workpiece is realized. The workpiece to be measured 3 is aligned with the middle scanning hole of the scanning assembly by adjusting the left and right offset of the workpiece to be measured 3 by the second adjusting roller assembly 1102, so that the risk of not being able to pass through the scanning system or being side-scratched due to the offset of the workpiece to be measured 3 is avoided.

[0071] Further, as shown in the drawings, Figure 13 the first adjusting roller assembly 1101 is provided with a plurality of groups of central symmetry; preferably, the first adjusting roller assembly 1101 is provided with four groups, and the four groups of first adjusting roller assemblies 1101 are arranged at an interval of 90° in the circumferential direction.

[0072] Further, in the embodiment, the second adjusting roller assembly 1102 is arranged in one or more groups along the length direction of the support platform 11; the rotation axis of the second adjusting roller assembly 1102 is parallel to the conveying direction of the workpiece conveying mechanism 1; that is, the rotation axis of the second adjusting roller assembly 1102 is perpendicular to the scanning system.

[0073] Specifically, when the second adjusting roller assembly 1102 is arranged in multiple groups, the multiple groups of second adjusting roller assemblies 1102 are arranged in a linear manner, as shown in Figure 13

[0074] Further, the support platform 11 is provided with a first mounting groove 1103 and a second mounting groove 1104; the first adjusting roller assembly 1101 is rotatably mounted in the first mounting groove 1103, and the second adjusting roller assembly 1102 is rotatably mounted in the second mounting groove 1104.

[0075] In the embodiment, the first adjusting roller assembly 1101 and the second adjusting roller assembly 1102 each include a rotating shaft 1105 and a rotating roller 1106; the rotating roller 1106 is fixedly mounted on the rotating shaft 1105 and can be driven to rotate by the rotating shaft 1105; the rotating roller 1106 has a cam structure, and when the rotating shaft 1105 drives the rotating roller 1106 to rotate, the protruding part of the rotating roller 1106 rotates out of the upper surface of the support platform 11 or rotates into the first mounting groove 1103.

[0076] Preferably, a plurality of rotating rollers 1106 are fixedly mounted on one rotating shaft 1105; as shown in Figure 14 three rotating rollers 1106 are fixedly mounted on the rotating shaft 1105, and when the rotating shaft 1105 rotates, the three rotating rollers 1106 can be driven to rotate synchronously.

[0077] Specifically, in the present application, the first adjusting roller assembly 1101 and the second adjusting roller assembly 1102 are independently driven, and the rotating movements of the first adjusting roller assembly 1101 and the second adjusting roller assembly 1102 are not performed at the same time; that is, the azimuth angle adjustment and the left-right displacement adjustment of the workpiece 3 by the adjusting roller assembly are independently performed.

[0078] In implementation, in the process that the rotating roller 1106 of the first adjusting roller assembly 1101 rotates out of the upper surface of the support platform 11 and rolls in contact with the lower surface of the workpiece 3, the workpiece 3 can be pushed to rotate around the center of the multiple groups of first adjusting roller assemblies 1101, thereby adjusting the azimuth angle of the workpiece 3; in the process that the rotating roller 1106 of the second adjusting roller assembly 1102 rotates out of the upper surface of the support platform 11 and rolls in contact with the lower surface of the workpiece 3, the workpiece 3 can be pushed to shift left and right, thereby aligning the middle scanning hole of the scanning assembly.​

[0079] In one embodiment of the present application, as shown in Figure 15 , Figure 16 , the rotating roller 1106 is composed of a rotating drum 1106a and a half-moon-shaped protrusion 1106b.

[0080] Specifically, the rotating drum 1106a is a cylindrical drum.

[0081] Specifically, as shown in Figure 16 , the two half-moon-shaped protrusions 1106b are symmetrically arranged on the upper and lower sides of the rotating drum 1106a.

[0082] Further, as shown in Figure 15 , the half-moon-shaped protrusions 1106b are arranged in multiple groups along the axis direction of the rotating drum 1106a.

[0083] In this embodiment, the half-moon-shaped protrusions 1106b are made of rubber material to avoid surface damage to the workpiece 3 when pushing the workpiece 3 to move.

[0084] Further, when the half-moon-shaped protrusions 1106b are vertically upward, the half-moon-shaped protrusions 1106b of the rotating roller 1106 protrude above the upper surface of the support platform 11 and can contact the workpiece on the support platform 11; when the half-moon-shaped protrusions 1106b are horizontally, the rotating roller 1106 is lower than the upper surface of the support platform 11 and does not contact the workpiece 3 on the support platform 11.

[0085] In implementation, in the process of rotating the rotating roller 1106 driven by the rotating shaft 1105, the half-moon-shaped protrusions 1106b continuously exert lateral force on the workpiece 3 on the support platform 11, thereby pushing the workpiece 3 to rotate circumferentially or translate.

[0086] In one embodiment of the present application, two groups of second adjusting roller assemblies 1102 are arranged coaxially, and the two rotating shafts 1105 of the two groups of second adjusting roller assemblies 1102 are fixedly connected and can rotate synchronously under the drive of the first rotating motor.

[0087] In one embodiment of the present application, as shown in Figure 14 , the first adjusting roller assembly 1101 further comprises a synchronous gear 1107; the synchronous gear 1107 is fixedly installed on the rotating shaft 1105; and the diameter of the synchronous gear 1107 is smaller than the diameter of the rotating drum 1106a of the rotating roller 1106, thereby keeping the synchronous gear 1107 below the upper surface of the support platform 11 to avoid contact between the synchronous gear 1107 and the workpiece 3.

[0088] Furthermore, multiple sets of first adjusting roller assemblies 1101 rotate synchronously under the drive of the second rotary motor and rotary transmission assembly.

[0089] like Figure 17 As shown, the rotary transmission assembly includes: a first drive gear 1108, a driven gear 1109, a first bevel gear 1110, a second bevel gear 1111, a transmission rod 1112, and a transmission gear 1114.

[0090] Specifically, the first drive gear 1108 is horizontally arranged below the support platform 11, and the first drive gear 1108 simultaneously meshes with multiple driven gears 1109, which can drive the multiple driven gears 1109 to rotate synchronously.

[0091] Furthermore, the first bevel gear 1110 is fixedly connected to the driven gear 1109 via the second positioning shaft 1116, and the first bevel gear 1110 is arranged side by side above the driven gear 1109; in this embodiment, by setting the first bevel gear 1110 and the driven gear 1109 to be coaxially mounted, the synchronous rotation of the two is achieved.

[0092] Furthermore, the first bevel gear 1110 meshes with the second bevel gear 1111 for transmission; in this embodiment, the rotation axis direction is changed from the vertical direction to the horizontal direction through the meshing transmission of the first bevel gear 1110 and the second bevel gear 1111, thereby realizing the rotation of the vertically set second bevel gear 1111.

[0093] Furthermore, the transmission rod 1112 is disposed below the support platform 11 and parallel to the support platform 11; a second bevel gear 1111 is fixedly mounted on one end of the transmission rod 1112, and a transmission gear 1114 is fixedly mounted on the other end; the transmission gear 1114 is disposed below the support platform 11, and the transmission gear 1114 meshes with the synchronization gear 1107. In this embodiment, rotational power is transmitted to the synchronization gears 1107 of the four sets of first adjusting roller assemblies 1101 through four sets of transmission rods 1112 and transmission gears 1114, thereby enabling the synchronous rotation of the four sets of rotating shafts 1105 and rotating rollers 1106, and when multiple rotating rollers 1106 rotate synchronously, they can simultaneously apply a thrust to the support platform 11 to promote its rotational movement.

[0094] In the embodiment, when the rotating roller 1106 rotates to the state that the half-moon-shaped protrusions 1106b on the surface of the rotating roller 1106 are above the upper surface of the support platform 11, the half-moon-shaped protrusions 1106b can exert an oblique upward force on the workpiece 3 above the support platform 11, and the vertical component of the oblique force can achieve the effect of slightly lifting the workpiece 3, thereby reducing the mutual friction between the workpiece 3 and the surface of the support platform 11 during rotation of the workpiece 3; and the horizontal component of the oblique force can promote the rotation of the workpiece 3, thereby achieving the circumferential orientation adjustment of the workpiece 3.

[0095] In implementation, the first driving gear 1108 is driven to rotate by the second rotating motor, thereby synchronously driving the plurality of driven gears 1109 to rotate, the first bevel gear 1110 is synchronously driven by the driven gears 1109 to rotate and drives the second bevel gear 1111 to rotate, when the second bevel gear 1111 rotates, the transmission rod 1112 is driven to rotate by the second bevel gear 1111, thereby driving the transmission gear 1114 to rotate by the transmission rod 1112, and further driving the synchronous gear 1107 to rotate by the transmission gear 1114, thereby achieving the synchronous rotation of the plurality of first adjusting roller assemblies 1101.

[0096] Further, the number of the driven gears 1109, the transmission rod 1112 and the transmission gear 1114 is equal to the number of the first adjusting roller assemblies 1101.

[0097] Specifically, as shown in Figure 17 the first driving gear 1108 is fixedly connected with the first positioning shaft 1115 and is rotatably installed below the support platform 11 through the first positioning shaft 1115; and the first positioning shaft 1115 is perpendicular to the support platform 11.

[0098] Specifically, as shown in Figure 17 a plurality of second positioning shafts 1116 are arranged around the first positioning shaft 1115; and further, the second positioning shafts 1116 are rotatably installed below the support platform 11 through bearings.

[0099] Specifically, as shown in Figure 17 at least one transmission rod support 1113 is arranged on the transmission rod 1112, and the transmission rod support 1113 is fixedly connected with the lower surface of the support platform 11; the transmission rod 1112 is rotatably connected with the transmission rod support 1113 through a bearing, thereby the transmission rod 1112 is rotatably hung below the support platform 11 through the transmission rod support 1113.

[0100] In the embodiment, by setting the rotating transmission assembly, the synchronous rotation of the multiple sets of first adjusting roller assemblies 1101 is realized by the meshing of the multiple transmission gears 1114 and the synchronous gears 1107 of the multiple sets of first adjusting roller assemblies 1101. When the multiple sets of first adjusting roller assemblies 1101 rotate synchronously, the lateral force can be simultaneously provided to the workpiece 3 above the supporting platform 11, and the multiple sets of lateral thrust provided by the multiple sets of first adjusting roller assemblies 1101 are continuous in the circumferential direction, thereby the workpiece 3 can be pushed to rotate. That is, the rotating torques provided by the multiple sets of first adjusting roller assemblies 1101 to the workpiece are in the same direction, and are all used for pushing the workpiece 3 to rotate clockwise or counterclockwise, realizing the superposition of the multiple sets of rotating torques, and realizing the circumferential angle adjustment of the workpiece 3 under the premise of minimizing the surface force acting on the workpiece 3.

[0101] Embodiment 3

[0102] In one specific embodiment of the present application, improvements are made on the basis of Embodiment 1 or Embodiment 2:

[0103] In the embodiment, a rotating slip ring assembly 208 applied to the high-energy industrial spiral CT system of the present application is provided, as shown in Figure 9 The rotating slip ring assembly 208 of the embodiment includes a rotating outer ring 2081, a positioning inner ring 2082, and a roller assembly. The rotating outer ring 2081 is rotatably installed on the side surface of the positioning inner ring 2082 through multiple sets of roller assemblies.

[0104] Specifically, the rotating outer ring 2081 is arranged side by side with the positioning inner ring 2082, and the two are coaxial, as shown in Figure 9 .

[0105] Specifically, as shown in Figure 9 , Figure 10 The rotating gear 211 is fixedly connected with the rotating outer ring 2081 or is an integral structure. The rotating gear 211 is coaxially arranged with the rotating outer ring 2081. When the rotating motor 210 drives the rotating gear 211 to rotate through the second driving gear 209, the rotating outer ring 2081 rotates synchronously with the rotating gear 211.

[0106] Specifically, multiple sets of roller assemblies are rotatably installed on the side surface of the positioning inner ring 2082. The roller assemblies are in rolling contact with the inner side of the rotating outer ring 2081, and are used for supporting the rotating outer ring 2081, as shown in Figure 9 .

[0107] Further, the positioning inner ring 2082 is fixedly connected with the fixing frame 207, and the rotating outer ring 2081 is fixedly connected with the rotary frame 201; when the rotating gear 211 rotates under the driving of the rotary motor 210 and the second driving gear 209, the rotating outer ring 2081 rotates relative to the positioning inner ring 2082, and simultaneously can drive the rotary frame 201 to rotate relative to the fixing frame 207, so as to realize the relative rotation of the scanning assembly and the supporting assembly, and further realize the spiral scanning of the CT system.

[0108] In the embodiment, as shown in the figure, Figure 11 the roller assembly includes a roller 2083, a positioning rotating shaft 2085 and a positioning bearing 2087; the roller 2083 is fixedly installed at the end of the positioning rotating shaft 2085, one end of the positioning rotating shaft 2085 is fixedly connected with the roller 2083, and the other end is rotatably installed on the positioning inner ring 2082 through the positioning bearing 2087.

[0109] Specifically, as shown in the figure, Figure 12 the side surface of the positioning inner ring 2082 is provided with a plurality of cylindrical bearing installation grooves; the outer ring of the positioning bearing 2087 is fixedly installed in the bearing installation groove in a manner of interference fit; and the positioning rotating shaft 2085 is fixedly installed in the inner ring of the positioning bearing 2087 in a manner of interference fit, so as to realize the rotatable installation of the positioning rotating shaft 2085 on the positioning inner ring 2082, and further realize the rotation of the roller 2083 relative to the positioning inner ring 2082.

[0110] Further, as shown in the figures, Figure 9 , Figure 11 the roller assembly is arranged in multiple groups on the side surface of the positioning inner ring 2082, and the multiple groups of roller assemblies are arranged in a ring shape.

[0111] Further, the multiple groups of roller assemblies are nested and installed inside the rotating outer ring 2081, and the roller 2083 can roll along the inner surface of the rotating outer ring 2081. In the embodiment, through the nested combination of the multiple groups of roller assemblies and the rotating outer ring 2081, the rotatable installation of the rotating outer ring 2081 and the positioning inner ring 2082 is realized, so that the rotating slip ring assembly 208 has the function of a large-size bearing, can realize the relative rotation of the large-size rotary frame 201 and the fixing frame 207, and further realize the rotary motion of the scanning assembly relative to the supporting assembly.

[0112] Specifically, as shown in the figures, Figure 11 , Figure 12 the roller 2083 is in a drum shape as a whole; and the outer surface of the roller 2083 is provided with a metal contact ring 2086.

[0113] Specifically, as shown in the figures, Figure 11As shown, the metal contact ring 2086 is attached to the surface of the roller 2083; alternatively, the metal contact ring 2086 is embedded inside the roller 2083 and protrudes from the outer surface of the roller 2083.

[0114] Further, the inner side of the rotating outer ring 2081 is provided with an arc-shaped conductive ring 2088 with a concave surface; the metal contact ring 2086 on the roller 2083 is in extrusion contact with the surface of the arc-shaped conductive ring 2088; and the support assembly transmits electrical energy to the scanning assembly through the contact between the metal contact ring 2086 and the arc-shaped conductive ring 2088.

[0115] Specifically, the outer part of the positioning shaft 2085 is further provided with a conductive slip ring 2084; the rotor part of the conductive slip ring 2084 is fixedly connected with the positioning shaft 2085; and the stator part of the conductive slip ring 2084 is fixedly connected with the inner ring of the positioning bearing 2087 or the outer ring of the positioning bearing 2087. When the positioning shaft 2085 rotates relative to the positioning inner ring 2082, the conductive slip ring 2084 can realize rotary power supply.

[0116] Specifically, the rotor part of the conductive slip ring 2084 is electrically connected with the metal contact ring 2086 on the roller 2083 through a first cable; and the stator part of the conductive slip ring 2084 is electrically connected with the power supply device of the support assembly through a second cable.

[0117] Further, in order to realize the power supply capability of the conductive slip ring 2084, in this embodiment, a first cable clamping groove for mounting the first cable is formed on the surface of the positioning shaft 2085; and a second cable clamping groove (not shown in the figure) for allowing the second cable to pass through is formed on the positioning inner ring 2082.

[0118] In this embodiment, the support force for the rotating outer ring 2081 is provided by multiple positioning shafts 2085, and the torque caused by the overall mass of the scanning assembly and the rotating gear 211 is borne by multiple positioning shafts 2085 and the positioning bearing 2087, thereby improving the overall bearing capacity of the rotating slip ring assembly 208.

[0119] Considering that the power supply capability of a single conductive slip ring 2084 is limited, in this embodiment, multiple positioning shafts 2085 are selected to be provided with conductive slip rings 2084 according to the power demand of the scanning assembly, and power supply is realized through multiple conductive slip rings 2084, thereby solving the power consumption problem of the high-energy CT system; and in this embodiment, the rotation of the scanning assembly and the realization of the power supply demand can be realized without using large-size bearings or high-power conductive slip rings 2084, thereby reducing the demand for device components and significantly reducing the cost of the device.

[0120] Compared with the prior art, the technical scheme provided by the embodiment has at least one of the following beneficial effects:

[0121] The high-energy industrial spiral CT system of the application integrates a high-energy X-ray emitter and a detector on a rotating mechanism, can realize 360-degree continuous rotation, can perform internal structure spiral scanning on a super-large-size high-density workpiece, generate a high-quality structure image, and further realize internal flaw detection of the super-large-size workpiece or extraction of other information useful to a user.

[0122] The high-energy industrial spiral CT system of the application realizes high-efficiency online detection of high-energy X-ray spiral CT, does not require rotation of the workpiece, does not cause additional detection damage to the workpiece, effectively guarantees the quality of the workpiece, and has great economic and use benefits for producers and users.

[0123] The above is only a preferred specific embodiment of the application, but the protection scope of the application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the application, which should be covered in the protection scope of the application.

Claims

1. A high-energy industrial spiral CT system, characterized by, The utility model relates to a kind of scanning system and workpiece conveying mechanism. The workpiece conveying mechanism includes a support platform, a first linear conveying assembly, a second linear conveying assembly and a driving device. The support platform is used to support the workpiece to be measured. The support platform is slidably installed above the first linear conveying assembly and can be driven to displace by the driving device. The second linear conveying assembly is arranged parallel to the first linear conveying assembly and is used to support the support platform.

2. The high energy industrial spiral CT system according to claim 1, wherein, When the driving device drives the support platform to displace to the position of the scanning system, the scanning system can scan the workpiece to be measured.

3. The high-energy industrial spiral CT system according to claim 2, wherein, The scanning system includes a scanning assembly, a rotating slip ring assembly and a support assembly.

4. The high-energy industrial spiral CT system of claim 3, wherein, The rotating slip ring assembly includes a rotating outer ring, a positioning inner ring and a roller assembly.

5. The high-energy industrial spiral CT system of claim 4, wherein, The side surface of the positioning inner ring is rotatably installed with multiple roller assemblies.

6. The high-energy industrial spiral CT system according to any one of claims 1-5, characterized in that, The roller assembly is in rolling contact with the inner side of the rotating outer ring and is used to support the rotating outer ring. The roller assembly includes a roller, a positioning shaft and a positioning bearing. One end of the positioning shaft is fixedly connected with the roller, and the other end is rotatably installed on the positioning inner ring through the positioning bearing. The inner side of the rotating outer ring is provided with an arc-shaped conductive ring. The support assembly transmits electric energy to the scanning assembly through the contact of the metal contact ring and the arc-shaped conductive ring. The outer part of the positioning shaft is further provided with a conductive slip ring. The first adjusting roller assembly and the second adjusting roller assembly are rotatably installed on the support platform. When the first adjusting roller assembly rotates, it can push the workpiece to be measured to realize azimuth rotation. When the second adjusting roller assembly rotates, it can push the workpiece to be measured to displace left and right along the width direction of the support platform. The first adjusting roller assembly and the second adjusting roller assembly each include a rotating shaft and a rotating roller. The rotating roller is in cam structure. When the rotating shaft drives the rotating roller to rotate, the protruding part of the rotating roller can rotate out of the upper surface of the support platform or rotate into the first installation groove of the support platform. The scanning assembly includes a high-energy ray source and a detector. The high-energy ray source is used to emit X-rays, and the detector is used to detect the transmitted rays to obtain measurement data. The scanning assembly further includes a linear accelerator, a modulator PU and a modulator TU. The scanning assembly further includes a slewing frame and fans. The fans are arranged in a line on the slewing frame. The support assembly includes a fixed frame, a second driving gear, a slewing motor and a rotating gear. The rotating gear is fixedly connected with the scanning assembly. The rotating gear is rotatably connected with the fixed frame through the rotating slip ring assembly. The slewing motor can drive the second driving gear to rotate. The second driving gear is engaged with the rotating gear, so that the slewing motor can drive the scanning assembly to rotate. The first linear conveying assembly and the second linear conveying assembly have the same structure.

7. The high-energy industrial spiral CT system of claim 6, wherein, The first linear conveying assembly and the second linear conveying assembly each comprise a support frame, a leveling ground hook and a support wheel assembly; the support wheel assembly is arranged in two rows above the support frame and is used for rolling support of the support platform; the leveling ground hook is installed at the bottom of the support frame and is used for height adjustment of the support frame.

8. The high energy industrial spiral CT system of claim 1, wherein, The first linear conveying assembly is further provided with a sliding block platform and a sliding block guide rail; the sliding block platform is slidingly installed above the sliding block guide rail; the support platform is fixedly installed above the sliding block platform.

9. The high-energy industrial spiral CT system of claim 8, wherein, The sliding block guide rail is provided with two parallel sliding block guide rails.

10. The high energy industrial spiral CT system of claim 1, wherein, The first linear conveying assembly is further provided with a laser lamp, and the second linear conveying assembly is provided with a plurality of laser targets with scales; the laser lamp is used for emitting a laser beam; whether the scales on the laser targets are consistent when irradiated by the laser beam is used for judging whether the workpiece conveying mechanism is horizontal.

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