Industrial CT scanning rotation device and rotation method thereof

Abstract

The invention relates to an industrial CT scanning rotation device and a rotation method thereof, belongs to the technical field of CT scanning, and solves the problems that the rotation motion of existing large-aperture scanning equipment is difficult to realize and the equipment is easy to damage. The industrial CT scanning rotation device comprises a scanning assembly, a rotary sliding ring assembly and a supporting assembly. The scanning assembly is rotationally installed on the supporting assembly through the rotary slip ring assembly, and when the scanning assembly rotates, a to-be-detected workpiece can be scanned; the supporting assembly comprises a fixed supporting frame, a driving gear, a rotary motor and a rotating gear; the rotating gear is fixedly connected with the scanning assembly, and the rotating gear is rotationally connected with the fixed supporting frame through the rotating sliding ring assembly; the rotary motor can drive the driving gear to rotate; and the driving gear is engaged with the rotating gear, so that the rotary motor can drive the scanning assembly to rotate. According to the invention, the rotary driving of the scanning equipment with the ultra-large aperture is realized, and meanwhile, the production and application of products are facilitated.

Description

Technical Field

[0001] The present invention relates to the field of CT scanning technology, and in particular to an industrial CT scanning rotation device and a rotation method thereof. Background Art

[0002] The radiation source and detector of the high-energy CT detection system in the current market generally move vertically or horizontally, and the workpiece being measured rotates or translates. There are high requirements for the scanning posture of the workpiece being measured, that is, it cannot be rotated or placed vertically, so CT detection has certain limitations.

[0003] For CT inspection of oversized workpieces (greater than 1.5 meters), the scanning equipment is required to have an oversized aperture; for the rotary motion of the scanning equipment with a perforated diameter, it generally requires specially customized large-sized slip rings and large-sized bearings to achieve, and the equipment has poor applicability, resulting in limited production and application of the equipment, and inconvenient maintenance and component replacement.

[0004] Based on the above reasons, the present invention provides an industrial CT scanning rotation device. Summary of the invention

[0005] In view of the above analysis, the present invention aims to provide an industrial CT scanning rotation device to solve the problem that existing CT scanning equipment is difficult to achieve spiral scanning of large-sized workpieces.

[0006] The purpose of the present invention is mainly achieved through the following technical solutions:

[0007] An industrial CT scanning and rotating device comprises: a scanning assembly, a rotating slip ring assembly and a supporting assembly;

[0008] The scanning assembly is rotatably mounted on the supporting assembly through the rotating slip ring assembly, and when the scanning assembly rotates, it can scan the workpiece to be measured;

[0009] The support assembly includes: a fixed support frame, a driving gear, a rotary motor and a rotating gear; the rotating gear is fixedly connected to the scanning assembly, and the rotating gear is rotatably connected to the fixed support frame through the rotating slip ring assembly;

[0010] The rotary motor can drive the driving gear to rotate; the driving gear is meshed with the rotating gear, and then the rotary motor can drive the scanning assembly to rotate.

[0011] Furthermore, the scanning assembly includes: a rotating frame, a high-energy ray source and a detector; the rotating frame is fixedly connected to the rotating gear; the high-energy ray source and the detector are both integrated on the rotating frame; the high-energy ray source is used to emit X-rays, and the detector is used to detect transmitted rays to obtain measurement data.

[0012] Furthermore, the scanning assembly also includes: a linear accelerator, a modulator PU and a modulator TU.

[0013] Furthermore, the scanning assembly also includes: a fan; a plurality of the fans are provided, and the plurality of fans are arranged linearly on the rotating frame.

[0014] Furthermore, the rotating slip ring assembly comprises: a rotating outer ring, a positioning inner ring and a roller assembly; the rotating outer ring is rotatably mounted on the side of the positioning inner ring through multiple groups of roller assemblies.

[0015] Furthermore, the rotating outer ring and the positioning inner ring are arranged in parallel and are coaxial.

[0016] Furthermore, the rotating gear is fixedly connected to the rotating outer ring or is an integrated structure; the positioning inner ring is fixedly connected to the fixed support frame.

[0017] Furthermore, a plurality of roller assemblies are rotatably mounted on the side of the positioning inner ring; the roller assemblies are in rolling contact with the inner side of the rotating outer ring and can be used to support the rotating outer ring.

[0018] A rotation method of a CT scanning rotation device, using the above-mentioned industrial CT scanning rotation device, the rotation method comprises the following steps:

[0019] Step S1: starting the rotary motor and driving the driving gear to rotate through the rotary motor;

[0020] Step S2: the rotating gear meshes with the driving gear and rotates relative to the revolving frame;

[0021] Step S3: When the rotating gear rotates relative to the rotating frame, the scanning assembly is driven to rotate relative to the rotating assembly through the rotating gear; at the same time, the electrical equipment of the scanning assembly is powered by the rotating slip ring assembly.

[0022] An industrial spiral CT system comprises: a workpiece conveying mechanism for driving the displacement of the workpiece and the above-mentioned industrial CT scanning rotary device.

[0023] Compared with the prior art, the technical solution provided by the present invention has at least one of the following beneficial effects:

[0025] 1. The CT scanning rotary device of the present invention integrates a high-energy X-ray emitter and a detector on the scanning assembly. The rotary frame is driven to rotate by a rotary motor, a driving gear and a rotating gear, so that the scanning assembly can be rotated 360° continuously, and then cooperate with the linear conveying mechanism to convey the workpiece. The internal structure of the oversized and high-density workpiece can be spirally scanned to generate a high-quality structural image, thereby realizing internal flaw detection of the oversized workpiece or extracting other information useful to the user.

[0026] 2. The CT scanning rotary device of the present invention can realize high-energy X-ray spiral CT efficient online detection through its own rotary motion, without the need for the workpiece to rotate, and will not cause additional detection damage to the workpiece; it effectively guarantees the quality of the workpiece, and has huge economic and use benefits for manufacturers and users.

[0027] 3. The CT scanning rotary device of the present invention supports and limits the rotating outer ring by rotating the positioning shaft and rollers installed on the positioning inner ring, and disperses the mass of the rotating outer ring and the scanning assembly to multiple positioning shafts and rollers for bearing, which is beneficial to extending the service life of the equipment.

[0028] In the present invention, the above-mentioned technical solutions can also be combined with each other to achieve more preferred combination solutions. Other features and advantages of the present invention will be described in the subsequent description, and some advantages can become obvious from the description, or can be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained through the contents particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings are only for the purpose of illustrating particular embodiments and are not to be considered limiting of the present invention. Like reference symbols denote like components throughout the drawings.

[0030] Figure 1 This is a schematic diagram of the front structure of the industrial CT scanning rotation device according to Example 1 of the present invention;

[0031] Figure 2 This is a schematic diagram of the back structure of the industrial CT scanning rotation device according to Example 1 of the present invention;

[0032] Figure 3 This is a schematic diagram of the structure of a rotating slip ring assembly of an industrial CT scanning rotary device according to Example 1 of the present invention;

[0033] Figure 4 This is a schematic diagram of the combined structure of the rotating gear and the rotating outer ring of the rotating slip ring assembly according to Example 1 of the present invention;

[0034] Figure 5 It is a structural schematic diagram of the positioning inner ring of the rotating slip ring assembly according to Example 1 of the present invention;

[0035] Figure 6 It is a schematic diagram of the installation of the roller assembly of the rotating slip ring assembly of Example 1 of the present invention;

[0036] Figure 7 This is a schematic structural diagram of a workpiece conveying mechanism of an industrial spiral CT system according to Embodiment 3 of the present invention;

[0037] Figure 8 A top view of a workpiece conveying mechanism of an industrial spiral CT system according to Embodiment 3 of the present invention;

[0038] Fig. 9 It is a structural schematic diagram of a bearing platform of a workpiece conveying mechanism of an industrial spiral CT system according to Embodiment 3 of the present invention;

[0039] Fig.10 It is a schematic diagram of an adjusting roller assembly of a carrying platform of a workpiece conveying mechanism of an industrial spiral CT system according to Embodiment 3 of the present invention;

[0040] Fig.11 This is a schematic structural diagram of a rotating roller of an adjusting roller assembly of a carrying platform according to Embodiment 3 of the present invention;

[0041] Fig.12 This is a side view of the rotating roller of the adjusting roller assembly of the carrying platform of Example 3 of the present invention.

[0042] Reference numerals:

[0043] 11-carrying platform; 12-first conveying frame assembly; 13-second conveying frame assembly; 14-driving device; 15-conveying frame; 16-leveling hook; 141-first driving motor; 142-screw rod; 143-hinged seat; 144-sliding block; 145-sliding block guide rail;

[0044] 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-synchronizing gear; 1106a-rotating drum; 1106b-semi-moon shaped protrusion;

[0045] 201-slewing frame; 202-cooler; 203-linear accelerator; 204-modulator PU; 205-modulator TU; 206-fan; 207-fixed support frame; 208-rotating slip ring assembly; 209-driving gear; 210-slewing motor; 211-rotating gear;

[0046] 2081-rotating outer ring; 2082-positioning inner ring; 2083-roller; 2084-conductive slip ring; 2085-positioning shaft; 2086-metal contact ring; 2087-positioning bearing; 2088-arc-shaped conductive ring. DETAILED DESCRIPTION

[0047] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0048] Example 1

[0049] A specific embodiment of the present invention discloses an industrial CT scanning rotation device; Figure 1 , Figure 2 , Figure 3 As shown, it includes: a scanning assembly, a rotating slip ring assembly 208 and a supporting assembly; the scanning assembly is rotatably mounted on the supporting assembly through the rotating slip ring assembly 208, and when the scanning assembly rotates, it can scan the workpiece to be measured.

[0050] Furthermore, 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 transmitted rays to obtain measurement data.

[0051] Furthermore, if Figure 1 As shown, the scanning assembly also includes: a linear accelerator 203, a modulator PU204 and a modulator TU205.

[0052] In the present invention, the linear accelerator uses an electromagnetic field to accelerate charged particles to a speed close to the speed of light, and generates X-rays after hitting the target. Compared with ordinary X-ray flaw detectors, the generated X-rays are not only high in energy, but also high in intensity. The electron linear accelerator of industrial CT has the characteristics of high energy, high dose rate, high stability and small size.

[0053] In the present invention, modulator PU204 and modulator TU205 are used to realize signal modulation and demodulation; modulator PU204 and modulator TU205 belong to the conventional configuration of the scanning assembly of the spiral CT device, and their structural principles and working effects are not described in detail in the present invention.

[0054] Furthermore, if Figure 1 As shown, the scanning assembly further includes: a fan 206 ; a plurality of fans 206 are provided, and the plurality of fans 206 are arranged linearly on the rotating frame 201 .

[0055] Furthermore, if Figure 2 As shown, the support assembly includes: a fixed support frame 207, a driving gear 209, a rotary motor 210 and a rotating gear 211; the rotating gear 211 is fixedly connected to the scanning assembly, and the rotating gear 211 is rotatably connected to the fixed support frame 207 through the rotating slip ring assembly 208; the rotary motor 210 can drive the driving gear 209 to rotate; the driving gear 209 is meshed with the rotating gear 211, and then the rotary motor 210 can drive the scanning assembly to rotate.

[0056] like Figure 3 , Figure 4 , Figure 5As shown, in this embodiment, the rotating slip ring assembly 208 includes: a rotating outer ring 2081, a positioning inner ring 2082 and a roller assembly; the rotating outer ring 2081 is rotatably mounted on the side of the positioning inner ring 2082 through multiple groups of roller assemblies.

[0057] Specifically, the rotating outer ring 2081 and the positioning inner ring 2082 are arranged in parallel and are coaxial. Figure 3 shown.

[0058] Specifically, Figure 3 , Figure 4 As shown, the rotating gear 211 is fixedly connected to the rotating outer ring 2081 or is an integral structure; the rotating gear 211 is coaxially arranged with the rotating outer ring 2081, and when the rotary motor 210 drives the rotating gear 211 to rotate through the driving gear 209, the rotating outer ring 2081 rotates synchronously with the rotating gear 211.

[0059] Specifically, the side of the positioning inner ring 2082 is rotatably mounted with multiple sets of roller assemblies; the roller assemblies are in rolling contact with the inner side of the rotating outer ring 2081 to support the rotating outer ring 2081; Figure 3 shown.

[0060] Furthermore, the positioning inner ring 2082 is fixedly connected to the fixed support frame 207; the rotating outer ring 2081 is fixedly connected to the rotating frame 201; when the rotating gear 211 rotates driven by the rotating motor 210 and the driving gear 209, the rotating outer ring 2081 rotates relative to the positioning inner ring 2082, and at the same time can drive the rotating frame 201 to rotate relative to the fixed support frame 207, thereby realizing the relative rotation of the scanning assembly and the supporting assembly, and further realizing the spiral scanning of the CT system.

[0061] In this embodiment, Figure 5 , Figure 6 As shown, the roller assembly includes: a roller 2083, a positioning shaft 2085 and a positioning bearing 2087; the roller 2083 is fixedly mounted on the end of the positioning shaft 2085, one end of the positioning shaft 2085 is fixedly connected to the roller 2083, and the other end is rotatably mounted on the positioning inner ring 2082 through the positioning bearing 2087.

[0062] Specifically, Figure 6As shown, a plurality of cylindrical bearing mounting grooves are provided on the side of the positioning inner ring 2082; the outer ring of the positioning bearing 2087 is fixedly mounted in the bearing mounting groove by means of an interference fit; the positioning shaft 2085 is fixedly sleeved and installed in the inner ring of the positioning bearing 2087 by means of an interference fit, thereby realizing the rotatable installation of the positioning shaft 2085 on the positioning inner ring 2082, and thus the roller 2083 can rotate relative to the positioning inner ring 2082.

[0063] Furthermore, if Figure 5 As shown, multiple groups of roller assemblies are arranged on the side of the positioning inner ring 2082, and the multiple groups of roller assemblies are arranged in a ring shape.

[0064] Further, multiple groups of the roller assemblies are nested and installed inside the rotating outer ring 2081, and the rollers 2083 can roll along the inner surface of the rotating outer ring 2081. In this embodiment, through the nested combination of multiple groups of roller assemblies and the rotating outer ring 2081, the rotating outer ring 2081 and the positioning inner ring 2082 can be rotated and installed, so that the rotating slip ring assembly 208 has the function of a large-sized bearing, and can realize the relative rotation of the large-sized rotating frame 201 and the fixed support frame 207, thereby realizing the rotational movement of the scanning assembly relative to the support assembly.

[0065] Specifically, Figure 5 , Figure 6 As shown, the roller 2083 is drum-shaped as a whole; a metal contact ring 2086 is provided on the outer surface of the roller 2083.

[0066] Specifically, Figure 6 As shown, the metal contact ring 2086 is glued and installed on the surface of the roller 2083; or, the metal contact ring 2086 is embedded in the roller 2083, and the surface protrudes from the outer surface of the roller 2083.

[0067] Furthermore, an arc-shaped conductive ring 2088 with a concave surface is provided on the inner side of the rotating outer ring 2081; the metal contact ring 2086 on the roller 2083 is in compression contact with the surface of the arc-shaped conductive ring 2088; and the support assembly transfers electrical energy to the scanning assembly through the contact between the metal contact ring 2086 and the arc-shaped conductive ring 2088.

[0068] Specifically, a conductive slip ring 2084 is further disposed on the outside of the positioning shaft 2085; the rotor portion of the conductive slip ring 2084 is fixedly connected to the positioning shaft 2085; the stator portion of the conductive slip ring 2084 is fixedly connected to the positioning inner ring 2082 or the inner 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 rotational power supply.

[0069] Specifically, the rotor part of the conductive slip ring 2084 is electrically connected to the metal contact ring 2086 on the roller 2083 through a first cable; the stator part of the conductive slip ring 2084 is electrically connected to the power supply equipment of the support assembly through a second cable.

[0070] Furthermore, in order to realize the power supply capability of the conductive slip ring 2084, in this embodiment, a first cable slot for installing a first cable is opened on the surface of the positioning shaft 2085; at the same time, a second cable slot for allowing a second cable to pass through is opened on the positioning inner ring 2082 (not shown in the figure).

[0071] In this embodiment, a plurality of positioning shafts 2085 are used to provide support force for the rotating outer ring 2081, and the torque caused by the overall mass of the scanning assembly and the rotating gear 211 is borne by the plurality of positioning shafts 2085 and the positioning bearings 2087, thereby improving the overall bearing capacity of the rotating slip ring assembly 208.

[0072] Considering that the power supply capacity of a single conductive slip ring 2084 is limited, in this embodiment, according to the power demand of the scanning assembly, conductive slip rings 2084 are installed on multiple positioning shafts 2085, and power is supplied through multiple conductive slip rings 2084 (all or part), thereby solving the power consumption problem of the high-energy CT system.

[0073] The CT scanning rotary device of the present invention supplies power to the scanning assembly through multiple conductive slip rings 2084 installed on the positioning shaft 2085. The multiple conductive slip rings 2084 can be used alternately, or when an individual conductive slip ring 2084 fails, other conductive slip rings 2084 can be replaced to supply power, thereby ensuring the continuity of power supply to the scanning assembly and realizing timely and efficient detection of large-sized workpieces to be measured.

[0074] The present invention integrates a high-energy X-ray emitter and a detector on a rotatable rotating frame 201, which can realize 360° continuous rotation, and can perform spiral scanning of the internal structure of an oversized and high-density workpiece, generate high-quality structural images, and extract useful information for users. The CT scanning rotating device of the present invention realizes high-energy X-ray horizontal oversized workpiece spiral CT detection, and the workpiece does not need to rotate, thereby avoiding additional damage caused by the movement of the workpiece.

[0075] The CT scanning rotation device of the present invention is used for defect detection of large-sized high-density workpieces. It solves the problem that vertical detection equipment cannot rotate continuously and the problem that oversized workpieces cannot be scanned in the original position.

[0076] The motion driving structure of the CT scanning rotary device of the present invention is a metal motion pair such as gears, which solves the problem that the material of the non-metallic transmission structure is easily aged by radiation under high-energy rays, resulting in a short service life of the equipment.

[0077] Example 2

[0078] A specific embodiment of the present invention provides a method for rotating the rotating device in Embodiment 1, comprising the following steps:

[0079] Step S1: Start the rotary motor 210 and drive the driving gear 209 to rotate through the rotary motor 210;

[0080] Step S2: the rotating gear 211 meshes with the driving gear 209 and rotates relative to the revolving frame 201;

[0081] Step S3: When the rotating gear 211 rotates relative to the rotating frame 201 , the scanning assembly is driven to rotate relative to the rotating assembly through the rotating gear 211 ; at the same time, the electrical equipment of the scanning assembly is powered through the rotating slip ring assembly 208 .

[0082] In step S3, the rotating gear 211 drives the scanning assembly to rotate relative to the rotating assembly in the following manner:

[0083] Step S301: the rotating gear 211 drives the rotating outer ring 2081 fixedly connected thereto to realize a rotational motion;

[0084] Step S302: When the rotating outer ring 2081 performs a rotational motion, it rotates around the multiple roller assemblies installed on the positioning inner ring 2082, and at the same time, the inner wall surface of the rotating outer ring 2081 and the roller 2083 of the roller assembly rub against each other to drive the roller 2083 to rotate;

[0085] Step S303: When the roller 2083 rotates, it drives the positioning shaft 2084 installed on the positioning inner ring 2082 to rotate. The positioning shaft 2084 rotates relative to the positioning inner ring 2082 through the positioning bearing 2087. The positioning inner ring 2082 is fixedly connected to the rotating frame 201, thereby realizing the rotational movement of the rotating gear 211 and the scanning assembly relative to the rotating assembly.

[0086] It is worth noting that in step S302, the friction between the rotating outer ring 2081 and the roller 2083 is rolling friction. Specifically, the inner wall surface of the rotating outer ring 2081 is provided with an arc-shaped conductive ring 2088 with an inner concave surface; the outer surface of the roller 2083 is provided with a metal contact ring 2086, and the metal contact ring 2086 is in rolling contact with the arc-shaped conductive ring 2088.

[0087] In step S3, the rotating slip ring assembly 208 supplies power to the scanning assembly in the following manner:

[0088] Step S311: a conductive slip ring 2084 is installed on the positioning shaft 2085; the rotor part of the conductive slip ring 2084 is fixedly connected to the positioning shaft 2085; the stator part of the conductive slip ring 2084 is fixedly connected to the positioning inner ring 2082 or the outer ring of the positioning bearing 2087; when the positioning shaft 2085 rotates relative to the positioning inner ring 2082, the rotor part of the conductive slip ring 2084 rotates relative to the stator part;

[0089] Step S312: the rotor part of the conductive slip ring 2084 is electrically connected to the metal contact ring 2086 on the roller 2083 through the first cable; the stator part of the conductive slip ring 2084 is electrically connected to the power supply device of the support assembly through the second cable; when the rotor part and the stator part of the conductive slip ring 2084 rotate relative to each other, the power supply device can transfer electric energy to the metal contact ring 2086 on the roller 2083 through the conductive slip ring 2084;

[0090] Step S313: When the roller 2083 rolls relative to the rotating outer ring 2081, the metal contact ring 2086 rolls in contact with the arc-shaped conductive ring 2088 on the inner wall of the rotating outer ring 2081, and the metal contact ring 2086 can transfer electrical energy to the arc-shaped conductive ring 2088, and supply electrical energy to the electrical equipment of the scanning assembly that moves synchronously with the rotating gear 2011 and the rotating outer ring 2081 through the arc-shaped conductive ring 2088.

[0091] Compared with the prior art, the technical solution provided by this embodiment has at least one of the following beneficial effects:

[0092] 1. In this embodiment, the rotary motion of the scanning assembly and the power supply requirement can be achieved without using large-sized bearings or high-power conductive slip rings 2084, which reduces the demand for equipment components and can significantly reduce equipment costs.

[0093] 2. In this embodiment, the driving gear 209 is driven to rotate by the rotary motor 210, and the scanning assembly of the rotary device is driven to rotate by the meshing transmission between the driving gear 209 and the rotating gear 211, thereby realizing the rotary drive of the CT scanning device, and the movement is stable and reliable.

[0094] Example 3

[0095] A specific embodiment of the present invention provides a CT scanning system based on the rotating device of Example 1.

[0096] like Figure 7, Figure 8 As shown, the CT scanning system also includes: a workpiece conveying mechanism; the workpiece conveying mechanism includes: a carrying platform 11, a first conveying frame assembly 12, a second conveying frame assembly 13 and a driving device 14; the carrying platform 11 is used to support the workpiece to be measured; the carrying platform 11 is slidably installed above the first conveying frame assembly 12 and can be driven to move by the driving device 14; the first conveying frame assembly 12 and the second conveying frame assembly 13 are respectively arranged on the front and rear sides of the scanning system 2, and a gap is left between the two; when the driving device 14 drives the carrying platform 11 to move to the position of the scanning system 2, the scanning system 2 can scan the workpiece to be measured.

[0097] Furthermore, the first conveyor frame assembly 12 and the second conveyor frame assembly 13 have the same structural composition; the first conveyor frame assembly 12 and the second conveyor frame assembly 13 both include: a conveyor frame 15, a fixed ground hook 16 and a support wheel assembly; the support wheel assembly is arranged in two rows above the conveyor frame 15 for rolling support of the carrying platform 11; the fixed ground hook 16 is installed at the bottom of the conveyor frame 15 for adjusting the height of the conveyor frame 15.

[0098] Furthermore, if Figure 8 As shown, the driving device 14 includes: a first driving motor 141, a screw rod 142, a screw rod nut and an articulated seat 143; the first driving motor 141 and the articulated seat 143 are both fixedly installed above the first conveying frame assembly 12; one end of the screw rod 142 is fixedly connected to the output shaft of the first driving motor 141, and the other end is rotatably connected to the articulated seat 143; the screw rod nut and the screw rod 142 form a screw rod nut pair; the screw rod nut is fixedly connected to the lower surface of the supporting platform 11; when the first driving motor 141 drives the screw rod 142 to rotate, the screw rod nut can drive the supporting platform 11 to move linearly.

[0099] Furthermore, a slider rail 145 is fixedly mounted on the first conveying frame assembly 12 ; a sliding block 144 is slidably mounted above the slider rail 145 ; and the carrying platform 11 is fixedly mounted above the sliding block 144 .

[0100] Furthermore, the slider guide rails 145 are provided with two parallel ones.

[0101] Furthermore, a laser lamp is also provided on the first conveying frame assembly 12, and a plurality of laser targets with scales are provided on the second conveying frame assembly 13; the laser lamp is used to emit a laser beam; whether the scales on the laser target irradiated by the laser beam are consistent is used to determine whether the workpiece conveying mechanism is horizontal.

[0102] The design of the present invention integrates the high-energy X-ray emitter and detector on the rotating mechanism of the scanning system 2, which can realize 360° continuous rotation. In conjunction with the workpiece conveying mechanism 1 to drive the linear displacement of the workpiece 3 to be measured, the internal structure of the oversized high-density workpiece can be spirally scanned to generate high-quality structural images and extract useful information for the user. The innovation of this system is to realize efficient online detection of high-energy X-ray spiral CT, without the need to rotate the workpiece, and no additional detection damage will be caused to the workpiece. The quality of the workpiece is effectively guaranteed. It has huge economic and use benefits for producers and users.

[0103] In this embodiment, taking into account that large-sized workpieces have different shapes, when scanning large-sized workpieces with irregular shapes, in order to ensure that the large-sized workpiece can smoothly pass through the middle hole of the scanning assembly, it is necessary to position the large-sized workpiece and adjust the alignment direction of the large-sized workpiece and the scanning assembly so that its length direction is consistent with the conveying direction so that it can be scanned smoothly.

[0104] In this embodiment, the bearing platform 11 of the workpiece conveying mechanism 1 is improved and designed so that the bearing platform 11 can adjust the position of the large-sized workpiece while carrying and lifting the large-sized workpiece.

[0105] Specifically, Fig. 9 As shown, in this embodiment, a first adjusting roller assembly 1101 and a second adjusting roller assembly 1102 are rotatably installed on the carrying platform 11; wherein, when the first adjusting roller assembly 1101 rotates, it can push the workpiece 3 to be measured to achieve azimuth rotation; when the second adjusting roller assembly 1102 rotates, it can push the workpiece 3 to be measured to move left and right along the width direction of the carrying platform 11; that is, in this embodiment, by adjusting the rotation of the workpiece 3 to be measured by the first adjusting roller assembly 1101, the shortest side of the workpiece 3 to be measured can be adjusted to align with the middle scanning hole of the scanning assembly, so as to achieve the passability of large-sized workpieces. By adjusting the left and right offset of the workpiece 3 to be measured by the second adjusting roller assembly 1102, the workpiece 3 to be measured is aligned with the middle scanning hole of the scanning assembly, so as to avoid the risk of the workpiece 3 to be measured being unable to be scanned by the scanning system or having side scratches due to the offset of the workpiece 3 to be measured.

[0106] Furthermore, if Fig. 9 As shown, the first adjusting roller components 1101 are provided in multiple groups that are centrally symmetrical; preferably, the first adjusting roller components 1101 are provided in four groups, and the four groups of first adjusting roller components 1101 are arranged at intervals of 90° in the circumferential direction.

[0107] Furthermore, in this embodiment, one or more groups of second adjusting roller assemblies 1102 are arranged along the length direction of the carrying 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 arranged perpendicular to the scanning system.

[0108] Specifically, when multiple groups of second adjusting roller assemblies 1102 are provided, the multiple groups of second adjusting roller assemblies 1102 are arranged linearly, such as Fig. 9 shown.

[0109] Furthermore, a first mounting groove 1103 and a second mounting groove 1104 are provided on the carrying platform 11 ; 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 .

[0110] In this embodiment, Fig.10 As shown, the first adjusting roller assembly 1101 and the second adjusting roller assembly 1102 both 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 is a cam structure, and when the rotating shaft 1105 drives the rotating roller 1106 to rotate, the protruding part of the rotating roller 1106 is rotated out of the upper surface of the supporting platform 11 or rotated into the first mounting groove 1103.

[0111] Preferably, a plurality of rotating rollers 1106 are fixedly mounted on a rotating shaft 1105; Fig.10 As shown, three rotating rollers 1106 are fixedly mounted on the rotating shaft 1105 . When the rotating shaft 1105 rotates, the three rotating rollers 1106 can be driven to rotate synchronously.

[0112] Specifically, in the present invention, the first adjustment roller assembly 1101 and the second adjustment roller assembly 1102 are driven independently, and the rotational movements of the first adjustment roller assembly 1101 and the second adjustment roller assembly 1102 are not performed simultaneously; that is, the adjustment roller assemblies independently perform azimuth angle adjustment and left-right displacement adjustment of the workpiece 3 to be measured.

[0113] During implementation, when the rotating roller 1106 of the first adjusting roller assembly 1101 rotates out of the upper surface of the carrying platform 11 and rolls in contact with the lower surface of the workpiece 3 to be measured, the workpiece 3 to be measured can be pushed to rotate around the symmetry center of multiple groups of first adjusting roller assemblies 1101, thereby achieving adjustment of the azimuth angle of the workpiece 3 to be measured; when the rotating roller 1106 of the second adjusting roller assembly 1102 rotates out of the upper surface of the carrying platform 11 and rolls in contact with the lower surface of the workpiece 3 to be measured, the workpiece 3 to be measured can be pushed to deviate left and right, thereby aligning it with the middle scanning hole of the scanning assembly.

[0114] In a specific embodiment of the present invention, Fig.11 , Fig.12 As shown, the rotating roller 1106 is composed of a rotating drum 1106a and a half-moon shaped projection 1106b.

[0115] Specifically, the rotating drum 1106a is a cylindrical drum.

[0116] Specifically, Fig.11 As shown, the two half-moon-shaped protrusions 1106b form a group and are symmetrically arranged on the upper and lower sides of the rotating drum 1106a.

[0117] Furthermore, if Fig.12 As shown, the half-moon-shaped protrusions 1106b are arranged in multiple groups in an array along the axial direction of the rotating drum 1106a.

[0118] In this embodiment, the half-moon-shaped protrusion 1106 b is made of rubber material to avoid surface damage to the workpiece 3 when the workpiece 3 is pushed to move.

[0119] Furthermore, when the semi-lunar protrusion 1106b is vertically upward, the semi-lunar protrusion 1106b of the rotating roller 1106 protrudes from the upper surface of the carrying platform 11 and can contact the workpiece to be measured on the carrying platform 11; when the semi-lunar protrusion 1106b is horizontal, the rotating roller 1106 is lower than the upper surface of the carrying platform 11 and does not contact the workpiece to be measured 3 on the carrying platform 11.

[0120] During implementation, when the rotating shaft 1105 drives the rotating roller 1106 to rotate, the half-moon-shaped protrusion 1106 b continuously applies lateral force to the workpiece 3 to be measured on the carrying platform 11 , thereby driving the workpiece 3 to be measured to rotate in a circumferential direction or to move in a translational manner.

[0121] In a specific embodiment of the present invention, two groups of second adjusting roller assemblies 1102 are provided, and the two groups of second adjusting roller assemblies 1102 are coaxially arranged; 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.

[0122] In a specific embodiment of the present invention, Fig.10 As shown, the first adjustment roller assembly 1101 also includes: a synchronization gear 1107; the synchronization gear 1107 is fixedly mounted on the rotating shaft 1105; and the diameter of the synchronization gear 1107 is smaller than the diameter of the rotating drum 1106 of the rotating roller 1106, thereby keeping the synchronization gear 1107 lower than the upper surface of the supporting platform 11 to avoid contact between the synchronization gear 1107 and the workpiece 3 to be measured.

[0123] Furthermore, the multiple groups of first adjusting roller assemblies 1101 rotate synchronously under the drive of the second rotating motor and the rotating transmission assembly. Specifically, when the number of the second rotating motors is equal to the number of the first adjusting roller assemblies 1101, there is no need to set the synchronous gear 1107, and the first adjusting roller assemblies 1101 can be directly driven to rotate by the second rotating motor; when the number of the second rotating motors is less than the number of the first adjusting roller assemblies, it is necessary to set the synchronous gear 1107 and the rotating transmission assembly, and drive the multiple groups of first adjusting roller assemblies 1101 to rotate synchronously through the synchronous gear 1107 and the rotating transmission assembly.

[0124] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. An industrial CT scanning rotary device, characterized in that: include: A scanning assembly, a rotating slip ring assembly (208) and a support assembly; The scanning assembly is rotatably mounted on the supporting assembly via the rotating slip ring assembly (208); when the scanning assembly rotates, it can scan the workpiece to be measured; The support assembly comprises: a fixed support frame (207), a driving gear (209), a rotary motor (210) and a rotating gear (211); The rotating gear (211) is fixedly connected to the scanning assembly, and the rotating gear (211) is rotationally connected to the fixed support frame (207) through the rotating slip ring assembly (208); The rotary motor (210) can drive the driving gear (209) to rotate; the driving gear (209) is meshed with the rotating gear (211), and thus the rotary motor (210) can drive the scanning assembly to rotate.

2. The industrial CT scanning rotation device according to claim 1, characterized in that: The rotating slip ring assembly (208) comprises: a rotating outer ring (2081), a positioning inner ring (2082) and a roller assembly; the rotating outer ring (2081) is rotatably mounted on the side of the positioning inner ring (2082) via a plurality of sets of roller assemblies.

3. The industrial CT scanning rotation device according to claim 2, characterized in that: The rotating outer ring (2081) and the positioning inner ring (2082) are arranged in parallel and are coaxial.

4. The industrial CT scanning rotation device according to claim 3, characterized in that: The rotating gear (211) is fixedly connected to the rotating outer ring (2081) or is an integral structure; the positioning inner ring (2082) is fixedly connected to the fixed support frame (207).

5. The industrial CT scanning rotation device according to claim 4, characterized in that: A plurality of roller assemblies are rotatably mounted on the side of the positioning inner ring (2082); the roller assemblies are in rolling contact with the inner side of the rotating outer ring (2081) and can be used to support the rotating outer ring (2081).

6. The industrial CT scanning rotation device according to any one of claims 1 to 5, characterized in that: The scanning assembly comprises: a rotating frame (201), a high-energy ray source and a detector; the rotating frame (201) is fixedly connected to the rotating gear (211); the high-energy ray source and the detector are both integrated on the rotating frame (201); the high-energy ray source is used to emit X-rays, and the detector is used to detect transmitted rays to obtain measurement data.

7. The industrial CT scanning rotation device according to claim 6, characterized in that: The scanning assembly further comprises: a linear accelerator (203), a modulator PU (204) and a modulator TU (205).

8. The industrial CT scanning rotation device according to claim 6, characterized in that: The scanning assembly further comprises: a fan (206); a plurality of the fans (206) are provided, and the plurality of fans (206) are arranged in a linear manner on the rotating frame (201).

9. A method for rotating a CT scanning rotating device, characterized in that: Using the industrial CT scanning rotation device according to any one of claims 1 to 8, the rotation method comprises the following steps: Step S1: starting the rotary motor (210) and driving the driving gear (209) to rotate via the rotary motor (210); Step S2: the rotating gear (211) meshes with the driving gear (209) and rotates relative to the revolving frame (201); Step S3: When the rotating gear (211) rotates relative to the rotating frame (201), the scanning assembly is driven to rotate relative to the rotating assembly through the rotating gear (211); at the same time, the electrical equipment of the scanning assembly is powered through the rotating slip ring assembly (208).

10. An industrial spiral CT system, characterized in that: include: A workpiece conveying mechanism for driving the displacement of a workpiece and an industrial CT scanning rotation device according to any one of claims 1 to 8.

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