A high-energy industrial CT detection device for casting casing

By designing a high-energy industrial CT detection device for casting receivers, the rapid positioning and angle adjustment of casting receivers are achieved using servo motors and wireless communication modules, the problems of manual operation difficulties and radiation exposure are solved, detection efficiency and equipment utilization are improved, and the inspection efficiency is improved, and the utilization rate of equipment is guaranteed. Test quality and personnel health.

CN115219532BActive Publication Date: 2025-01-07HARBIN DONGAN ENGINE GRP
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Patent Information

Application Number
CN202210701010.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-06-20
Publication Date
2025-01-07
Estimated Expiration
2042-06-20

AI Technical Summary

Technical Problem

In high-energy industrial CT inspection, the casting receiver needs to be manually operated and adjusted the angle multiple times, resulting in difficulty in clamping, unreliable fixation, artifact generation, and low efficiency. The detector needs to wait for the radiation dose to decrease before entering the computer room, which affects the working efficiency and Equipment utilization rate, harmful to health.

Method used

A high-energy industrial CT detection device for casting receivers is designed, including a shaped base, transmission chamber, servo motor, reducer, transmission belt, clamping module, control panel and radiation shield, and the casting is rotated by the clamping module driven by the servo motor. , realizes rapid positioning and angle adjustment, reduces the number of clamping times, adopts remote control of wireless communication modules, and reduces personnel entering the radiation environment.

Benefits of technology

It realizes rapid positioning and angular accuracy of casting receivers, reduces artifacts, improves detection efficiency and equipment utilization, reduces the risk of radiation exposure for personnel, and ensures detection quality and personnel health.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention belongs to the technical field of high-energy industrial detection, and relates to a high-energy industrial CT detection device for a casting casing, wherein a conformable base is arranged on a CT equipment turntable in a CT room, the transmission chamber is a hollow rectangular parallelepiped, and the transmission chamber is vertically fixed on the upper surface of the conformable base; the power supply and the servo motor are arranged on the upper surface of the conformable base and close to the transmission chamber, the power supply is used to power the servo motor, the servo motor output shaft extends into the transmission chamber and a synchronous pulley is provided on the servo motor output shaft; the reducer is arranged at the upper end of the transmission chamber, the reducer is connected to the synchronous pulley on the servo motor output shaft through a transmission belt, the reducer is also coaxially connected to a clamping module, and the clamping module is used to fix the casting casing; the servo motor drives the reducer to rotate through the transmission belt, thereby driving the clamping module to rotate with the casting casing.
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Description

Technical Field

[0001] The invention belongs to the technical field of high-energy industrial detection, and relates to a high-energy industrial CT detection device for a casting casing. Background Art

[0002] When some castings are tested by high-energy industrial CT, tooling is often required to keep the castings rotating at the required angle with the equipment turntable for data collection. At present, considering the influence of high-energy industrial CT radiation factors, the tooling used for high-energy industrial CT testing of castings is basically a simple structure, mainly relying on manual operation to clamp the castings and adjust the casting angles. For castings that need to adjust the angles of different parts for CT scanning, when using conventional operation methods for testing, the testers need to enter the machine room many times to manually operate the tooling and adjust the castings, which has problems such as difficult clamping, unstable casting fixation, easy shaking and artifacts, poor positioning angle consistency, and low efficiency. In addition, because the radiation dose in the machine room environment will still be higher than the background value after the high-energy industrial CT stops emitting beams, it is harmful to human health. The testers need to wait for at least 1 hour until the radiation level drops to the background value before they can enter the machine room for related operations, which further reduces the efficiency of high-energy industrial CT testing and equipment utilization, greatly affecting the delivery progress of the casing. Summary of the invention

[0003] Purpose of the invention: The present invention provides a high-energy industrial CT detection device for casting casings, which mainly solves the problems existing in the above-mentioned prior art, can reduce the number of clamping times of similar products, improve the consistency of positioning angles, prevent casting shaking from generating artifacts, avoid idle waiting of equipment and personnel, and improve the efficiency of CT detection and equipment utilization. At the same time, it reduces the number of times personnel enter the machine room (radiation environment) for operation and ensures the health of personnel. .

[0004] The technical solution of the present invention is:

[0005] A high-energy industrial CT detection device for a casting casing, comprising: a conformal base, a transmission chamber, a power supply, a servo motor, a reducer, a transmission belt, and a clamping module;

[0006] The conformable base is arranged on the CT equipment turntable of the CT room, the transmission chamber is a hollow rectangular parallelepiped, and the transmission chamber is vertically fixed on the upper surface of the conformable base; the power supply and the servo motor are arranged on the upper surface of the conformable base and close to the transmission chamber, the power supply is used to power the servo motor, the output shaft of the servo motor extends into the transmission chamber and a synchronous pulley is arranged on the output shaft of the servo motor; the reducer is arranged at the upper end of the transmission chamber, the reducer is connected to the synchronous pulley on the output shaft of the servo motor through a transmission belt, the reducer is also coaxially connected to the clamping module, and the clamping module is used to fix the casting casing; the servo motor drives the reducer to rotate through the transmission belt, thereby driving the clamping module to rotate with the casting casing;

[0007] The device also includes: a control panel, a cable, a signal transmitter and a communication module;

[0008] The control panel is arranged in the control room and is connected to the signal transmitter arranged in the CT room via a cable. The communication module is arranged next to the power supply. The communication module receives the control instructions wirelessly transmitted by the control panel via the cable and the signal transmitter, and controls the rotation of the servo motor according to the control instructions.

[0009] Preferably, the device also includes: a radiation shield, which, together with the conformal base and the side walls of the transmission chamber, forms an enclosed space for surrounding the power supply, servo motor and communication module to reduce the interference of high-energy rays on electronic components. The side walls of the radiation shield are provided with small holes, through which the signal receiving end of the communication module extends out of the radiation shield.

[0010] Preferably, the radiation shield is made of welded steel plates, and lead plates are embedded on the inner surface.

[0011] Preferably, the radiation shield is divided into two sections, and the two sections are connected by a hinge. One section is welded and fixed to the conformal base, and the other section is provided with a handle and can be rotated around the hinge to open and close the radiation shield, which is convenient for replacing the internal power supply and maintenance.

[0012] Preferably, the clamping module includes a three-jaw chuck and a protective pressure plate; the three jaws on the three-jaw chuck are opened or closed as the chuck rotates, thereby supporting the circular ring stage on the casting receiver, and each jaw is provided with a screw hole at the end, and the protective pressure plate is arranged in the casting receiver and fixed by screw jaws. The diameter of the protective pressure plate is larger than the inner diameter of the circular ring stage, thereby pressing the casting receiver tightly against the jaws.

[0013] Preferably, the outer end surface of each of the claws is also provided with an adjusting block;

[0014] The outer end surface of the clamping claw is provided with three threaded holes at equal intervals, and the adjusting block is provided with three step holes, and the step holes correspond to the positions of the threaded holes, and the large hole ends of the step holes are away from the clamping claw, and three screws pass through the three step holes respectively and then are screwed into the threaded holes, and the length of the screws is greater than the thickness of the adjusting block, so that the adjusting block is fixed on the clamping claw but can move freely along the axial direction of the threaded hole;

[0015] Two adjusting screw holes are provided between the three threaded holes on the clamping jaw, and an adjusting screw is provided in each adjusting screw hole. By adjusting the length of the two adjusting screws extending out of the clamping jaw, the distance and the inclination angle between the adjusting block and the outer end surface of the clamping jaw can be adjusted to adapt to the clamping gap formed by different sizes of the casting receiver and the irregular surface of the casting receiver.

[0016] Preferably, an emergency stop switch is provided on the transmission chamber for emergency stopping of the servo motor when the casting casing is installed and fixed.

[0017] Preferably, a fine-tuning switch is provided on the transmission chamber, and the fine-tuning switch is used to fine-tune the angle of the clamping module.

[0018] Preferably, a lifting ring is provided at the top of the transmission chamber to facilitate loading and unloading of the device on the CT turntable equipment.

[0019] A high-energy industrial CT detection method for a casting casing, the method is used for the device, and the method comprises the following steps:

[0020] Step 1: Insert the circular ring of the casting casing into the three-jaw chuck, adjust the jaws and the movable block to clamp the casting casing, and then install the protective pressure plate to further fix the casting casing;

[0021] Step 2: Turn on the power and adjust the installation angle of the casting receiver through the fine-tuning switch;

[0022] Step 3: Start the high-energy process CT equipment, calibrate the equipment, set the detection parameters and perform CT scanning on the casting casing;

[0023] Step 4: After one scan, start the control panel, send control instructions through the control panel, control the casting casing to rotate to the next position to be detected, and close the control panel;

[0024] Step 5: Perform CT scan on the casting casing, process the last scan data, and evaluate the test results;

[0025] Step 6: Repeat steps 4 and 5 until all positions to be detected are scanned;

[0026] Step 7: After the test is completed and the radiation dose in the CT room drops to a safe value, the staff enters the room and removes the casting casing.

[0027] The present invention has the following beneficial effects: The present invention provides a high-energy industrial CT detection device for a casting casing, which can realize rapid positioning of the detection casing, improve the accuracy of the positioning angle and the consistency of the detection results, and realize CT detection of all detection parts of the casting casing with only one clamping, thereby improving the convenience of operation and work efficiency, and at the same time improving the utilization rate of the CT equipment. The use of the clamping module can ensure that the casting casing is clamped securely, effectively avoiding the artifacts caused by the shaking of the casting when the turntable of the CT equipment rotates, and ensuring the detection quality. Through the control module, the remote operation of the casting casing can be realized to adjust the position, reduce the frequency of the detection personnel entering the radiation environment, and provide strong protection for the health of the personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is an assembly diagram of a high-energy industrial CT detection device for a casting casing of the present invention;

[0029] Figure 2 It is a schematic diagram of the structure of the clamping claws and the adjusting movable block in the clamping module of the present invention;

[0030] Figure 3 It is a schematic diagram of the structural layout of the device of the present invention.

[0031] Figure 4 It is a flow chart of a high-energy industrial CT detection method for a casting casing using the present invention;

[0032] Figure 5 This is a schematic diagram of the control panel touch screen operation interface;

[0033] 1-groove, 2-petal-shaped depression, 3-axial groove, 4-cooling air hole, 5-bearing inner ring matching area, 6-turbine shaft, 7-turbine disk, 8-bearing inner ring. DETAILED DESCRIPTION

[0034] This section is an embodiment of the present invention, which is used to explain and illustrate the technical solution of the present invention.

[0035] On one hand, the present invention provides a high-energy industrial CT detection device for a casting casing, comprising a positioning module, a clamping module, a rotation drive module, a transmission chamber, a control module and a radiation shield. It is characterized in that the detection part of the casting casing can be quickly placed on the central axis of the equipment turntable through the positioning module to ensure that it is always in the center position of the CT equipment array detector when the equipment turntable rotates; the clamping module is easy to operate, the casting is firmly fixed without shaking, and it can meet the detection needs of multiple parts through one clamping in conjunction with the rotation drive module and the control module; the transmission chamber connects the rotation drive module and the clamping module, and at the same time serves as a load-bearing structure to support the casting casing to be inspected; the control module adopts wireless communication technology with anti-radiation interference, and has one-button rotation to a specified position and angle fine-tuning functions, with accurate angle positioning and high consistency; the radiation shield uses high-density materials to protect electronic devices from radiation, reducing the impact of high-energy rays on the life of electronic devices without affecting communication.

[0036] The positioning module is designed in the form of a conformable base according to the outline dimensions of the turntable of the CT equipment, and is used to quickly locate the precise installation position of the device on the turntable of the CT equipment, while ensuring that the clamped casting casing is in the required position. The conformable base is equipped with two fixing screw holes and screws that match the screw holes on the turntable, which are used to fix the device and prevent tipping. By placing the conformable base in accordance with the shape of the turntable of the CT equipment and aligning the screw holes and installing it on the turntable, the inspected casting can be quickly positioned relative to the central axis of the turntable, ensuring that the inspection part is in the center of the array detector of the CT equipment; the radiation shield serves as an electronic device installation room, and its size and shape are designed according to the devices accommodated, and it is fixed to the base by welding; a part of the rotation drive module is installed in the radiation shield and fixed to the conformable base by screws, and the other part is installed in the transmission room connected to the radiation shield; the transmission room is in the shape of a rectangular parallelepiped, and is connected to the base and the radiation shield by welding; The clamping module is installed on the upper end of the side wall of the transmission room connected to the radiation protection cover, and drives the casting casing to rotate through the rotating drive module; the control module is mainly divided into a control panel, a communication module, an emergency stop switch and an on-site fine-tuning button, wherein the control panel is installed in the control room outside the CT equipment room, and is connected to the signal transmitter located in the CT equipment room through a cable in the trench; the communication module body is installed in the radiation protection cover, and a small hole is opened in the corner of the radiation protection cover for connecting to the signal receiver outside the radiation protection cover; the emergency stop switch and the on-site fine-tuning button are installed on the other side wall of the above-mentioned transmission room, which is convenient for on-site personnel to observe and operate.

[0037] Furthermore, the positioning module includes a conformal base, two positioning holes and two fixing bolts, which are used to quickly determine the installation position of the device on the turntable of the CT equipment to ensure that the position of the casing of the casting to be inspected after clamping meets the inspection requirements. The conformal base is made of steel plate, on which structures such as a radiation shield and a transmission chamber are installed.

[0038] Furthermore, the clamping module is equipped with a three-jaw chuck and a protective pressure plate customized according to the inspected receiver. The clamping jaw is equipped with an adjustment block, and each clamping jaw is provided with 2 threaded through holes, 1 threaded hole and 3 small-diameter threaded holes; the adjustment block is provided with three small-diameter through holes and is screwed into the small-diameter screw holes on the clamping jaw to fix it. The surface of the block in contact with the casting is arranged in accordance with the structure of the clamped product to increase the contact area and ensure a secure clamping; there is another screw matched with the threaded through hole on the clamping jaw, and the length of the screw is greater than the threaded through hole. The screw is rotated to adjust the distance between the block and the clamping jaw to adapt to the clamping gap caused by the irregular size of the casting blank and meet the clamping of products of different specifications. The 1 threaded hole is located at the front end of the clamping jaw and is used for the installation and fixation of the protective pressure plate; the protective pressure plate is a circular thin steel plate, and three strip holes are provided on it corresponding to the positions of the three clamping jaws respectively. The pressure plate is fixed to the clamping jaw through the strip holes and screws to ensure that the casting receiver is securely clamped and prevented from slipping.

[0039] Furthermore, the rotation drive module includes a servo motor, a PLC program, a reducer and a power supply; the servo motor drives the synchronous pulley and the transmission belt in the transmission chamber, drives the reducer connected to the clamping module, and then drives the casing of the inspected casting to rotate to the required position. The power supply uses an explosion-proof battery that can be used in a high-radiation environment to provide power for the operation of the entire device, and is equipped with a backup power supply. The two power supplies are used alternately to ensure that the device is "powered on".

[0040] Furthermore, the transmission chamber is adjacent to the radiation protection cover. On the one hand, it is used to install transmission mechanisms such as reducers, transmission belts, motor output shafts and other buttons and indicator lights. On the other hand, it is used to connect the accompanying base and the clamping module, and serve as the main force-bearing structure to support the casting casing. At the same time, lifting rings are welded on both sides of the top of the transmission chamber to facilitate the loading and unloading of the device on the turntable of the CT equipment.

[0041] Furthermore, the control module includes a control panel, a communication module, an emergency stop switch, an on-site fine-tuning button and a power indicator light. The control panel is provided with a power button on the side, and the control panel can be closed after each operation is completed to prevent accidental touches from causing unnecessary device operation. Through the relevant operation buttons on the control panel, the device can be remotely controlled to perform functions such as designated position rotation, micro-rotation, continuous rotation, motor power off and motor emergency stop. The communication module includes a wireless signal transmitter and a wireless signal receiver, and uses anti-radiation interference wireless communication technology to realize control signal transmission in a radiation environment to avoid interference of wired communication lines with the operation of the CT equipment turntable. The on-site fine-tuning button can realize timely rotation adjustment after the casting casing is clamped to ensure that the clamping position meets the detection requirements. The power indicator light is used to indicate the power level to avoid interruption of the use of the device due to untimely power replacement.

[0042] Furthermore, the radiation shield is welded from steel plates, and lead plates are embedded in its inner wall to reduce the impact of high-energy rays on the life of electronic devices. At the same time, hinges and handles are installed on the upper cover of the shield to facilitate equipment maintenance and power supply replacement.

[0043] The present invention also provides a method for improving the efficiency of high-energy industrial CT detection of casting casings by using the above device without changing the original detection parameters. The method is characterized in that while improving the detection efficiency, it also improves the consistency of the detection effect, avoids artifacts caused by the shaking of the casting, improves the convenience of detection operation and the utilization rate of CT equipment, and reduces the frequency of detection personnel entering the CT room (radiation environment) for clamping operations, thereby ensuring the health of personnel. The steps include:

[0044] (1) placing the device on the turntable of the CT equipment according to the positioning module and installing and fixing it;

[0045] (2) hoisting the casing of the casting to be inspected onto the clamping module, adjusting the clamping claws and the clamping claw movable block, clamping the casting, and installing and fixing the protective pressure plate on the clamping claws to further clamp the casting;

[0046] (3) Turn on the power of the device, press the on-site fine-tuning button, and rotate the part to be inspected to the specified position;

[0047] (4) Start the high-energy industrial CT equipment to perform CT scans on designated areas;

[0048] (5) After completing a scan, the designated angle rotation button on the control panel is activated, and the next part to be inspected is switched to the designated position through remote one-touch operation without entering the machine room;

[0049] (6) Start the high-energy industrial CT equipment to perform CT scans on the designated parts. At the same time, perform three-dimensional reconstruction and processing on the last CT scan data to evaluate the test results;

[0050] (7) Repeat steps (5) and (6) until all the castings in this clamping are inspected;

[0051] (8) After the inspection is completed, the clamping module is released, the casting casing is removed, the device is returned to its original position, and the inspection results are subsequently processed, thus completing a high-energy industrial CT inspection process.

[0052] Example

[0053] The main casing of a helicopter main reducer is difficult to cast, and casting defects are prone to occur inside the casing. It is necessary to conduct internal quality inspections on its four installation leg parts through high-energy industrial CT scanning. The device and method provided by the present invention are used to perform high-energy industrial CT inspections on the casing. After completing the CT scan of each installation leg part, the inspector can quickly adjust the next installation leg to be inspected to the specified position through the control panel in the equipment control room. The inspector does not need to enter the machine room for manual operation, which avoids the time waste caused by waiting for the radiation dose to be reduced and improves the utilization rate of the CT equipment. While improving the efficiency of CT inspection work, it reduces the number of times the inspector enters the machine room, reducing the risk of the inspector's health being affected by radiation.

[0054] according to Figure 1 , Figure 2 and Figure 3 As shown, a device for improving the high-energy industrial CT detection efficiency of the main axle box of the above-mentioned helicopter is invented, which includes a positioning module, a clamping module, a rotation drive module, a transmission room, a control module and a radiation protection cover.

[0055] The conformable base 1 of the positioning module is a circular steel plate with the same radius as the turntable of the CT equipment. Two positioning screw holes are provided on the conformable base, which cooperate with the fixing bolts to realize the installation, fixation and positioning of the equipment body. The radiation shield 3 and the transmission chamber 4 are welded on the conformable base 1, and the two are connected. The servo motor 6 of the rotation drive module is located in the radiation shield 3 and fixed to the conformable base 1 by screws, and the motor output shaft 20 is located in the transmission chamber 4. The reducer 19 of the rotation drive module is connected to the clamping module 5 and fixed at the upper end of the transmission chamber 4. The servo motor 6 drives the reducer 19 to rotate, and then drives the clamping module to operate synchronously, so as to realize the position adjustment of the clamped main reducer and main frame.

[0056] The clamping module includes a three-jaw chuck and a protective pressure plate 13. The jaws 12 of the three-jaw chuck are equipped with an adjustment block 22. The position of the adjustment block can be flexibly adjusted by rotating the screw in the threaded through hole 23 to fill the gap between the jaws and the clamping part caused by the irregular size of the blank at the clamping part of the main reducer mainframe, so as to achieve the clamping, tightening and stability of the mainframe. At the same time, a threaded hole 24 is provided at the front end of the jaws 12. After the main reducer mainframe is clamped on the jaws, the protective pressure plate 13 is fixed to the three jaws through the threaded hole 24 and the matching screws, so as to further press the clamped main reducer mainframe to prevent the mainframe from slipping and ensure the safety of the device.

[0057] The rotation drive module includes a servo motor 6, a PLC program, a reducer 19 and a power supply 14; the reducer 19 and the output shaft 20 of the servo motor are located in the transmission chamber 4, and the remaining devices are located in the radiation shield 3 and fixed on the portable base 1. The power supply 14 is two batteries that are used alternately. Each time the device of the present invention is used, only one battery is installed in it, and the other is fully charged for standby. A power supply installation slot is provided on the portable base 1 (inside the radiation shield 3), and the power supply is placed in this slot to fix the power supply position. The servo motor 6 drives the synchronous pulley 18 and the matching transmission belt in the transmission chamber 4, drives the reducer 19 connected to the clamping module 5, and then drives the clamped main reducer main frame to rotate to the required position.

[0058] The transmission room 4 is a rectangular frame welded from steel plates, and its load-bearing capacity can meet the requirements for clamping the casting casing. In addition to the corresponding transmission mechanism, the transmission room is also equipped with facilities such as an emergency stop switch 8, a fine-tuning button 9, a power indicator light 10 and a lifting ring 15 to meet the needs of on-site operations of the inspection personnel.

[0059] The control module includes a control panel 32, a communication module 7, an emergency stop switch 8, an on-site fine-tuning button 9 and a power indicator light 10. Figure 3 The control panel is located in the control room and is connected to the signal transmitter 30 in the CT equipment room through a cable in the trench. The communication module 7 is equipped with a signal receiver. Through the above arrangement, the remote wireless control of the device of the present invention can be realized through the radiation protection wall 31, which improves the convenience and safety of adjusting the position of the main reduction mainframe. The control panel adopts a touch screen, and its interface is as follows Figure 5 Through the relevant operation buttons on the control panel, the device can be remotely controlled to perform functions such as clockwise 90° rotation, counterclockwise 90° rotation, clockwise jog fine-tuning rotation, counterclockwise jog fine-tuning rotation, clockwise continuous rotation, counterclockwise continuous rotation, motor power off and motor emergency stop. There is a control panel power button next to the touch screen. The control panel can be turned off after each operation is completed to prevent accidental touches and unnecessary device operation.

[0060] The main body of the radiation shield 3 is made of 20mm thick steel plate material, and a 16mm thick lead plate is embedded in its inner wall, which can reduce the impact of high-energy rays on the life of some electronic devices. The four side walls of the radiation shield 3 are connected and fixed to the conformal base 1 by welding. The upper cover 21 of the shield is fixed to one of the side walls by two hinges 16 and is equipped with a handle 17, which is convenient for the maintenance and power supply replacement of the device. A small hole is opened at the edge of one side wall of the radiation shield, and the signal receiver of the communication module is installed next to this hole to realize the transmission of control signals.

[0061] like Figure 4 The present invention also includes a method for high-energy industrial CT detection of casting casings using the inventive device, comprising the following steps:

[0062] (1) Place the shaped base of the positioning module of the device in accordance with the contour of the turntable of the CT equipment, align the positioning screw holes, and tighten the fixing bolts to ensure that the device is stably installed on the turntable;

[0063] (2) Put the upper end surface (clamping part) of the main reducer housing casting into the three-jaw chuck, adjust the jaws and the jaw adjustment block to clamp the casting, then align the three strip holes on the protective pressure plate with the threaded holes on the three jaws, screw in the screws to install the protective pressure plate, further press the casting to ensure that the main reducer housing is clamped securely;

[0064] (3) Start the power supply of the device, press the on-site fine-tuning button, and rotate the installation leg part to be tested to the specified position according to the process requirements;

[0065] (4) Start the high-energy industrial CT equipment, complete equipment calibration and other preparatory work, set the detection parameters according to the process, and start CT scanning of the designated installation leg part;

[0066] (5) After completing a scan, start the control panel and press the "clockwise 90°" button. The main housing is driven by the motor to rotate and switch the next part to be inspected to the specified position. After the rotation is completed, turn off the power button of the control panel to prevent accidental touch;

[0067] (6) According to the process setting detection parameters, perform CT scan on the designated installation leg part. At the same time, perform three-dimensional reconstruction and processing on the last CT scan data and evaluate the detection results;

[0068] (7) Repeat steps (5) and (6) until all four mounting leg positions of the receiver have been inspected;

[0069] (8) After the test is completed and the radiation dose in the CT room is reduced to a safe value, the staff enters the room, loosens the clamping module, removes the main reduction mainframe, removes the device from the CT equipment turntable and returns it to its original position. The test results are subsequently processed to complete a main reduction mainframe high-energy industrial CT test process.

[0070] According to the device and method provided by the present invention, the detection part of the main reducer main casing can be quickly adjusted, replacing the original inefficient method of manually adjusting the casing. The detection of four installation leg parts can save more than 3 hours of waiting time, improve work efficiency by about 15%, reduce the physical operation of the detection personnel, improve the utilization rate of industrial CT equipment, and reduce the risk of the detection personnel's health being affected by radiation.

Claims

1. A high-energy industrial CT detection device for casting casing, characterized in that: The device comprises: a conformable base, a transmission chamber, a power supply, a servo motor, a reducer, a transmission belt, and a clamping module; The conformable base is arranged on the CT equipment turntable of the CT room, the transmission chamber is a hollow rectangular parallelepiped, and the transmission chamber is vertically fixed on the upper surface of the conformable base; the power supply and the servo motor are arranged on the upper surface of the conformable base and close to the transmission chamber, the power supply is used to power the servo motor, the output shaft of the servo motor extends into the transmission chamber and a synchronous pulley is arranged on the output shaft of the servo motor; the reducer is arranged at the upper end of the transmission chamber, the reducer is connected to the synchronous pulley on the output shaft of the servo motor through a transmission belt, the reducer is also coaxially connected to the clamping module, and the clamping module is used to fix the casting casing; the servo motor drives the reducer to rotate through the transmission belt, thereby driving the clamping module to rotate with the casting casing; The clamping module includes a three-jaw chuck and a protective pressure plate; the three jaws on the three-jaw chuck are opened or closed as the chuck rotates, tightening or loosening the circular ring stage of the casting casing, thereby clamping or removing the casting casing; a screw hole is provided at the end of each jaw, the protective pressure plate is arranged in the casting casing and fixed to the jaws by screws, and the diameter of the protective pressure plate is larger than the inner diameter of the circular ring stage, thereby pressing the casting casing tightly onto the jaws; The outer end surface of each of the clamping jaws is also provided with an adjusting block; three threaded holes are arranged at equal intervals on the outer end surface of the clamping jaw, and three step holes are arranged on the adjusting block, and the step holes correspond to the positions of the threaded holes, and the large hole ends of the step holes are away from the clamping jaws, and three screws pass through the three step holes respectively and then screw into the threaded holes, and the length of the screws is greater than the thickness of the adjusting block, so that the adjusting block is fixed on the clamping jaw but can move freely along the axial direction of the threaded hole; two adjusting screw holes are arranged between the three threaded holes on the clamping jaw, and an adjusting screw is arranged in each adjusting screw hole, and the distance and inclination angle between the adjusting block and the outer end surface of the clamping jaw can be adjusted by adjusting the length of the two adjusting screws extending out of the clamping jaw, so as to adapt to the clamping gap formed by different sizes of the casting receiver and the irregular surface of the casting receiver; The device also includes: a control panel, a cable, a signal transmitter and a communication module; The control panel is arranged in the control room and is connected to the signal transmitter arranged in the CT room via a cable. The communication module is arranged next to the power supply. The communication module receives the control instructions wirelessly transmitted by the control panel via the cable and the signal transmitter, and controls the rotation of the servo motor according to the control instructions.

2. The device according to claim 1, characterized in that: The device also includes: a radiation shield, which, together with the conformal base and the side wall of the transmission chamber, forms a closed space for surrounding the power supply, the servo motor and the communication module to reduce the interference of high-energy rays on the electronic components. The side wall of the radiation shield is provided with a small hole, and the signal receiving end of the communication module extends out of the radiation shield through the small hole.

3. The device according to claim 2, characterized in that: The radiation protection cover is made of welded steel plates, and lead plates are embedded on the inner surface.

4. The device according to claim 3, characterized in that: The radiation shield is divided into two sections, and the two sections are connected by a hinge. One section is welded and fixed on the conformal base, and the other section is provided with a handle and can be rotated around the hinge to open and close the radiation shield, which is convenient for replacing the internal power supply and maintenance.

5. The device according to claim 1, characterized in that: The transmission chamber is provided with an emergency stop switch, which is used to urgently stop the servo motor when the casting casing is installed and fixed.

6. The device according to claim 5, characterized in that: The transmission chamber is provided with a fine-tuning switch, and the fine-tuning switch is used to fine-tune the angle of the clamping module.

7. The device according to claim 6, characterized in that: A lifting ring is provided on the top of the transmission chamber to facilitate loading and unloading of the device on the CT turntable equipment.

8. A high-energy industrial CT detection method for a casting casing, the method being used for the device according to any one of claims 1 to 7, characterized in that: The method comprises the following steps: Step 1: Insert the circular ring of the casting casing into the three-jaw chuck, adjust the jaws and the movable block to clamp the casting casing, and then install the protective pressure plate to further fix the casting casing; Step 2: Turn on the power and adjust the installation angle of the casting receiver through the fine-tuning switch; Step 3: Start the high-energy process CT equipment, calibrate the equipment, set the detection parameters and perform CT scanning on the casting casing; Step 4: After one scan, start the control panel, send control instructions through the control panel, control the casting casing to rotate to the next position to be detected, and close the control panel; Step 5: Perform CT scan on the casting casing, process the last scan data, and evaluate the test results; Step 6: Repeat steps 4 and 5 until all positions to be detected are scanned; Step 7: After the test is completed and the radiation dose in the CT room drops to a safe value, the staff enters the room and removes the casting casing.

Citation Information

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