An automatic cutting device for nuclear industry that is radiation-resistant and can be remotely controlled

Abstract

The invention discloses an automatic cutting device which is radiation-resistant and remotely controllable for the nuclear industry. The automatic cutting device comprises a moving trolley, a locking device, an adjusting device, a detecting device and a cutting assembly. The moving trolley is used for moving on a pipeline. The locking device is tightly connected to the moving trolley. The detecting device is tightly connected to the adjusting device. The detecting device is used for detecting defects of the pipeline. The cutting assembly is tightly connected to the adjusting device. The cutting assembly is used for cutting the pipeline. A control system is provided on the moving trolley. The control system is electrically connected to the detecting device. A shielding cover is provided on the control system for shielding radiation. The moving trolley can move on the pipeline, thereby driving the detecting device to scan the pipeline surface. The defects of the pipeline are detected by the detecting device, and the detection signal is transmitted to the control system. The control system analyzes the detection signal to control the cutting assembly to accurately cut the defective position of the pipeline.

Description

Technical Field

[0001] The invention relates to the technical field of automatic cutting, in particular to an automatic cutting device which is radiation-resistant and can be remotely controlled and is used in the nuclear industry. Background Art

[0002] The nuclear industry requires the use of a large number of pipelines, which need to be maintained and inspected on time. During the maintenance process, workers are required to cut and repair the pipelines.

[0003] However, the pipes used in the nuclear industry are irradiated. When cutting irradiated pipes, the pipes need to be placed in a closed environment for cutting. The workers need to wear heavy radiation protection clothing, which is inconvenient to operate and has low work efficiency. The existing automatic cutting devices used in the nuclear industry are usually composed of automatic control robots, which can perform precise cutting tasks in high-irradiation environments. They are equipped with laser cutting devices, radio frequency plasma cutting systems or other cutting tools to complete different types of cutting work.

[0004] However, the existing cutting methods often cut at a fixed angle. However, the pipe has an arc. The cutting seam formed by the fixed-angle cutting will cause the length of the cutting seam to be inconsistent when cutting areas of different sizes, affecting the firmness of the subsequent welding repair. Summary of the invention

[0005] The object of the present invention is to provide a radiation-resistant and remotely controllable automatic cutting device for the nuclear industry to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: the automatic cutting device includes a mobile trolley, a locking device, an adjusting device, a detecting device, and a cutting assembly. The mobile trolley is used to move on the pipeline. The locking device is tightly connected to the mobile trolley. The detecting device is tightly connected to the adjusting device. The detecting device is used to detect defects in the pipeline. The cutting assembly is tightly connected to the adjusting device. The cutting assembly is used to cut the pipeline. A control system is provided on the mobile trolley. The control system is electrically connected to the detecting device. A shielding cover is provided on the control system.

[0007] The present invention is mainly used for cutting pipelines for nuclear industry. The mobile trolley provides an installation basis for each device, and the mobile trolley can move on the pipeline, thereby driving the detection device to scan the pipeline surface, and the defects of the pipeline are detected by the detection device, and the detection signal is transmitted to the control system. The control system analyzes the detection signal to control the cutting component to accurately cut the defective position of the pipeline. The locking device is used to fix the mobile trolley on the pipeline to be cut to prevent the mobile trolley from shifting when moving on the pipeline. The adjustment device is used to adjust the position of the detection device and the cutting component to avoid mutual interference between the two during cutting. The control system integrates automatic control elements. After the device is fixed on the pipeline, it can be remotely controlled for automatic cutting, which reduces the radiation exposure to the staff, and a shielding cover is set on the control system to shield the radiation, which plays a role of radiation resistance.

[0008] Furthermore, the locking device includes a support frame, a sliding frame, and a driving motor. The support frame is firmly connected to the moving trolley, the sliding frame is slidably connected to the support frame, the driving motor is firmly connected to the sliding frame, and a rotating gear is provided at the output end of the driving motor. A chain is connected to the rotating gear, and the chain is mounted on the pipe.

[0009] The support frame is fixed on the mobile trolley as the main support of the locking device. The driving motor is the main power source of the locking device. By setting the chain on the pipe, the sliding bracket provides an installation basis for the driving motor. The driving motor is started, which in turn drives the rotating gear to rotate. The rotating gear and the chain cooperate with each other, thereby driving the mobile trolley to move along the trajectory of the chain on the pipe to prevent the mobile trolley from deviating when walking, ensuring the cutting effect, and the length of the chain can be freely selected to adapt to the cutting of pipes with different diameters.

[0010] Furthermore, the locking device also includes a telescopic cylinder, which is tightly connected to the support frame, and an output end of the telescopic cylinder is tightly connected to the sliding bracket.

[0011] The chain will become loose when it is installed on the pipe. The telescopic cylinder will move to drive the sliding bracket to move along the support frame, and then drive the chain connected to the rotating gear to move, so as to adjust the tightness of the chain and prevent the chain from falling off.

[0012] Furthermore, the adjusting device includes a first push rod and a second push rod. The first push rod is tightly connected to the moving trolley, and the output end of the first push rod is connected to the detection device. The second push rod is tightly connected to the moving trolley, and the output end of the second push rod is connected to the cutting assembly.

[0013] The first push rod moves to drive the detection device to the detection position to detect pipeline defects. After the detection is completed, the first push rod drives the detection device to retract to prevent interference with the movement of the cutting component. The second push rod drives the cutting component to move to the position where cutting is required to perform the cutting operation.

[0014] Furthermore, the detection device includes a hydraulic cylinder and an ultrasonic detector. The hydraulic cylinder is firmly connected to the output end of the first push rod, the ultrasonic detector is connected to the output end of the hydraulic cylinder, the detection end of the ultrasonic detector faces the pipeline, and the ultrasonic detector is electrically connected to the control system.

[0015] The action of the hydraulic cylinder drives the ultrasonic detector close to the surface of the pipe, and the mobile trolley sweeps across the surface of the pipe to detect defects in the pipe. The detection data is transmitted to the control system for analysis to determine the size of the defect. If the defect range is large, the cutting component is controlled to perform a circular cut on the pipe at that position. If the defect range is small, the cutting component is controlled to perform a fixed-point excision of the defective part, and the fixed-point excision part is subsequently repaired by welding.

[0016] Furthermore, the cutting assembly includes a rotating motor, an electric push rod, a rotating disk, a fixed frame, and a cutting torch. The rotating motor is tightly connected to the output end of the second push rod, the electric push rod is transmission-connected to the output end of the rotating motor, the rotating disk is tightly connected to the output end of the electric push rod, the fixed frame is rotationally connected to the rotating disk, the cutting torch is tightly connected to the fixed frame, and the cutting torch is connected to an external gas source.

[0017] The rotating motor is the main power source of the cutting assembly. When the rotating motor is started, it can drive the cutting torch to make a circular motion along the center of the rotating motor, so as to cut off the defective part of the pipeline. The electric push rod is used to control the size of the cutting position. If the defective part is large, the electric push rod is extended to drive the cutting torch away from the rotation center to increase the cutting area. The fixed frame connects the cutting torch to the rotating disk. The rotating disk is used to control the cutting angle of the cutting torch. In addition, the rotating motor can also be stopped, and the mobile trolley drives the cutting torch to sweep along the outer wall of the pipeline to directly cut off the pipeline.

[0018] Furthermore, the cutting torch is placed at an angle, with the upper end of the cutting torch close to the rotation center of the cutting assembly.

[0019] In order to ensure the firmness of the welding part during the subsequent welding repair of the cutting part, it is necessary to set the vertical section of the cutting seam to an outward eight-shaped shape. In this way, after the welding repair, under the action of the pressure in the pipeline, the welding part will fit more closely with the original pipeline, and the repair will be more firm. However, when the inclined cutting torch cuts incisions of different sizes, due to the curvature of the pipeline itself, if the cutting angle remains unchanged, the larger the cutting range, the longer the length of the cutting seam will be. In order to ensure the consistency of the length of the cutting seam and prevent the flow path of the welding liquid from being too long and unable to penetrate during the subsequent welding repair process, resulting in insufficient welding strength, the inclination angle of the cutting torch needs to be automatically adjusted according to the size of the defect on the pipeline to keep the length of the cutting seam consistent. The larger the defect area, the larger the area to be cut, and the larger the required inclination angle of the cutting torch. The control system can control the rotation angle of the rotating disk according to the defect size measured by the detection device, so as to control the cutting angle of the cutting torch within a suitable range.

[0020] Furthermore, a transmission cavity is provided on the rotating disk, a rotating motor is provided in the transmission cavity, a transmission gear is provided at the output end of the rotating motor, and a tooth surface is provided at one end of the fixed frame inserted into the transmission cavity, and the transmission gear meshes with the tooth surface.

[0021] The rotary motor is the main power source of the rotating disk. When the rotary motor is started, the torque is transmitted to the transmission gear, and then the torque is transmitted to the fixed frame through the tooth surface meshing with the transmission gear, thereby driving the cutting torch connected to the fixed frame to rotate to a suitable angle.

[0022] Furthermore, a plurality of mounting grooves are provided at one end of the fixing frame close to the rotating disk, a reset spring and a locking column are provided in the plurality of mounting grooves, the reset spring is tightly connected to the locking column, the locking column is slidably connected to the mounting groove, a plurality of connecting grooves are provided in the rotating disk, the plurality of connecting grooves correspond to the positions of the mounting grooves, and an electromagnet is provided in the connecting groove;

[0023] When fixing: the locking column is inserted into the connecting groove.

[0024] In order to prevent the cutting torch from shaking when cutting, when the rotating motor stops, the electromagnet is turned on, and the locking column is made of ferromagnetic material. Under the action of the magnetic force of the electromagnet, the reset spring is stretched, and the locking column slides along the installation groove and is inserted into the connecting groove to lock the fixed frame. Before starting the rotating motor, the electromagnet is disconnected first, and the locking column will be retracted into the installation groove under the action of the reset spring elastic force to release the lock on the fixed frame.

[0025] Compared with the prior art, the beneficial effects achieved by the present invention are: by integrating automatic control elements in the control system, after the device is fixed on the pipeline, it can be remotely controlled to perform automatic cutting, thereby reducing the radiation exposure to the workers, and a shielding cover is provided on the control system to shield the radiation, thereby playing a role of radiation resistance.

[0026] The position and size of the defect in the pipeline are accurately detected by an ultrasonic detector. In order to ensure the firmness of the welding part during the subsequent welding repair of the cutting part, the vertical section of the cutting seam is set to an outward eight-shaped shape through the inclined cutting torch. In this way, after the welding repair, under the action of the pressure in the pipeline, the welding part will fit more closely with the original pipeline, and the repair will be more firm. However, when the inclined cutting torch cuts incisions of different sizes, due to the curvature of the pipeline itself, if the cutting angle remains unchanged, the larger the cutting range, the longer the length of the cutting seam will be. In order to ensure the consistency of the length of the cutting seam and prevent the flow path of the welding liquid from being too long and unable to penetrate during the subsequent welding repair process, resulting in insufficient welding strength, and the larger the defect area, the larger the area to be cut, and the larger the required inclination angle of the cutting torch, the control system can automatically control the rotation angle of the rotating disk according to the defect size measured by the detection device, so as to control the cutting angle of the cutting torch within a suitable range, creating favorable conditions for subsequent welding repairs. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 is a schematic diagram of the locking device of the present invention;

[0030] Figure 3 yes Figure 2 A partial enlarged view of the A direction;

[0031] Figure 4 is a schematic diagram of the regulating device;

[0032] Figure 5 is a schematic diagram of the structure of the cutting device;

[0033] Figure 6 It is a structural schematic diagram of a rotating disk;

[0034] Figure 7 yes Figure 6 A local B-direction enlarged view;

[0035] Figure 8 It is a schematic diagram of the cutting seam;

[0036] In the figure: 1-mobile trolley, 2-locking device, 21-support frame, 22-sliding bracket, 23-drive motor, 24-rotating gear, 25-chain, 26-telescopic cylinder, 3-adjusting device, 31-first push rod, 32-second push rod, 4-detection device, 41-hydraulic cylinder, 42-ultrasonic detector, 5-cutting assembly, 51-rotating motor, 52-electric push rod, 53-rotating disk, 531-transmission chamber, 532-connecting groove, 54-fixed frame, 541-tooth surface, 542-installation groove, 55-cutting torch, 56-rotating motor, 561-transmission gear, 57-reset spring, 58-locking column, 59-electromagnet, 6-control system, 7-shielding cover. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] The present invention provides a technical solution:

[0039] like Figure 1 As shown, the automatic cutting device includes a moving trolley 1, a locking device 2, an adjusting device 3, a detecting device 4, and a cutting assembly 5. The moving trolley 1 is used to move on the pipeline. The locking device 2 is tightly connected to the moving trolley 1. The detecting device 4 is tightly connected to the adjusting device 3. The detecting device 4 is used to detect defects in the pipeline. The cutting assembly 5 is tightly connected to the adjusting device 3. The cutting assembly 5 is used to cut the pipeline. The moving trolley 1 is provided with a control system 6. The control system 6 is electrically connected to the detecting device 4. The control system 6 is provided with a shielding cover 7.

[0040] The present invention is mainly used for cutting pipelines for nuclear industry. The mobile trolley 1 provides an installation basis for each device, and the mobile trolley 1 can move on the pipeline, thereby driving the detection device 4 to scan the pipeline surface, and the defects of the pipeline are detected by the detection device 4, and the detection signal is transmitted to the control system 6. The control system 6 analyzes the detection signal to control the cutting component 5 to accurately cut the defective position of the pipeline. The locking device 2 is used to fix the mobile trolley 1 on the pipeline to be cut to prevent the mobile trolley 1 from shifting when moving on the pipeline. The adjustment device 3 is used to adjust the position of the detection device 4 and the cutting component 5 to avoid mutual interference between the two during cutting. The control system 6 integrates an automatic control element. After the device is fixed on the pipeline, it can be remotely controlled for automatic cutting, which reduces the radiation exposure to the staff, and a shielding cover 7 is set on the control system 6 to shield the radiation, which plays a role of radiation resistance.

[0041] like Figure 2 , Figure 3 As shown, the locking device 2 includes a support frame 21, a sliding bracket 22, and a driving motor 23. The support frame 21 is firmly connected to the moving trolley 1, the sliding bracket 22 is slidably connected to the support frame 21, the driving motor 23 is firmly connected to the sliding bracket 22, and a rotating gear 24 is provided at the output end of the driving motor 23, and a chain 25 is connected to the rotating gear 24, and the chain 25 is sleeved on the pipeline.

[0042] The support frame 21 is fixed on the mobile trolley 1 as the main support of the locking device 2. The driving motor 23 is the main power source of the locking device 2. By sleeved the chain 25 on the pipe, the sliding bracket 22 provides an installation basis for the driving motor 23. The driving motor 23 is started, which in turn drives the rotating gear 24 to rotate. The rotating gear 24 cooperates with the chain 25 to drive the mobile trolley 1 to move along the track of the chain 25 on the pipe to prevent the mobile trolley 1 from deviating when walking, ensuring the cutting effect, and the length of the chain 25 can be freely selected to adapt to the cutting of pipes with different diameters.

[0043] like Figure 2 , Figure 3 As shown, the locking device 2 further includes a telescopic cylinder 26 , which is firmly connected to the support frame 21 , and an output end of the telescopic cylinder 26 is firmly connected to the sliding bracket 22 .

[0044] The chain 25 may be loose when it is mounted on the pipe. The telescopic cylinder 26 moves to drive the sliding bracket 22 to move along the support frame 21, thereby driving the chain 25 connected to the rotating gear 24 to move, so as to adjust the tightness of the chain 25 and prevent the chain 25 from falling off.

[0045] like Figure 4 As shown, the adjusting device 3 includes a first push rod 31 and a second push rod 32. The first push rod 31 is fastened to the moving trolley 1, and the output end of the first push rod 31 is connected to the detection device 4. The second push rod 32 is fastened to the moving trolley 1, and the output end of the second push rod 32 is connected to the cutting assembly 5.

[0046] The first push rod 31 moves to drive the detection device 4 to the detection position to detect pipeline defects. After the detection is completed, the first push rod 31 drives the detection device 4 to retract to prevent interference with the movement of the cutting component 5. The second push rod 32 drives the cutting component 5 to move to the position where cutting is required to perform the cutting operation.

[0047] like Figure 4As shown, the detection device 4 includes a hydraulic cylinder 41 and an ultrasonic detector 42. The hydraulic cylinder 41 is fastened to the output end of the first push rod 31, the ultrasonic detector 42 is connected to the output end of the hydraulic cylinder 41, the detection end of the ultrasonic detector 42 faces the pipeline, and the ultrasonic detector 42 is electrically connected to the control system 6.

[0048] The hydraulic cylinder 41 moves to drive the ultrasonic detector 42 close to the surface of the pipeline, and scans the surface of the pipeline under the drive of the mobile trolley 1 to detect defects in the pipeline, and transmits the detection data to the control system 6 for analysis to determine the size of the defective part. If the defect range is large, the cutting component 5 is controlled to perform a circular cut on the pipeline at that position. If the defect range is small, the cutting component 5 is controlled to perform a fixed-point excision on the defective part, and then the fixed-point excision part is repaired by welding.

[0049] like Figure 4 , Figure 5 As shown, the cutting assembly 5 includes a rotating motor 51, an electric push rod 52, a rotating disk 53, a fixed frame 54, and a cutting torch 55. The rotating motor 51 is fastened to the output end of the second push rod 32, the electric push rod 52 is transmission-connected to the output end of the rotating motor 51, the rotating disk 53 is fastened to the output end of the electric push rod 52, the fixed frame 54 is rotationally connected to the rotating disk 53, the cutting torch 55 is fastened to the fixed frame 54, and the cutting torch 55 is connected to an external gas source.

[0050] The rotating motor 51 is the main power source of the cutting assembly 5. When the rotating motor 51 is started, it can drive the cutting torch 55 to make a circular motion along the center of the rotating motor 51, so as to cut off the defective part of the pipeline. The electric push rod 52 is used to control the size of the cutting position. If the defective part is large, the electric push rod 52 extends to drive the cutting torch 55 away from the rotation center to increase the cutting area. The fixing frame 54 connects the cutting torch 55 to the rotating disk 53. The rotating disk 53 is used to control the cutting angle of the cutting torch 55. In addition, the rotating motor 51 can also be inactive, and the mobile trolley 1 drives the cutting torch 55 to sweep along the outer wall of the pipeline to directly cut the pipeline.

[0051] like Figure 4 , Figure 8 As shown, the cutting torch 55 is placed at an angle, and the upper end of the cutting torch 55 is close to the rotation center of the cutting assembly 5.

[0052] In order to ensure the firmness of the welding part when the cutting part is subsequently welded and repaired, it is necessary to set the vertical section of the cutting seam to an outward eight-shaped shape. In this way, after the welding repair, under the action of the pressure in the pipeline, the welding part will fit more closely with the original pipeline, and the repaired part will be more firm. However, when the inclined cutting torch 55 cuts incisions of different sizes, due to the curvature of the pipeline itself, if the cutting angle remains unchanged, the larger the cutting range, the longer the length of the cutting seam will be. In order to ensure the consistency of the length of the cutting seam and prevent the flow path of the welding liquid from being too long and unable to penetrate during the subsequent welding repair process, resulting in insufficient welding strength, the inclination angle of the cutting torch 55 needs to be automatically adjusted according to the size of the defect on the pipeline to keep the length of the cutting seam consistent. The larger the defect area and the larger the area to be cut, the larger the required inclination angle of the cutting torch 55. The control system 6 can control the rotation angle of the rotating disk 53 according to the defect size measured by the detection device 4, so as to control the cutting angle of the cutting torch 55 within a suitable range.

[0053] like Figure 6 , Figure 7 As shown, a transmission cavity 531 is provided on the rotating disk 53, a rotating motor 56 is provided in the transmission cavity 531, a transmission gear 561 is provided at the output end of the rotating motor 56, and a tooth surface 541 is provided at one end of the fixing frame 54 inserted into the transmission cavity 531, and the transmission gear 561 meshes with the tooth surface 541.

[0054] The rotating motor 56 is the main power source of the rotating disk 53. When the rotating motor 56 is started, the torque is transmitted to the transmission gear 561, and then the torque is transmitted to the fixed frame 54 through the tooth surface 541 meshing with the transmission gear 561, thereby driving the cutting torch 55 connected to the fixed frame 54 to rotate to a suitable angle.

[0055] like Figure 6 , Figure 7 As shown, a plurality of mounting grooves 542 are provided at one end of the fixing frame 54 close to the rotating disk 53, a return spring 57 and a locking column 58 are provided in the plurality of mounting grooves 542, the return spring 57 is fastenedly connected to the locking column 58, the locking column 58 is slidably connected to the mounting groove 542, a plurality of connecting grooves 532 are provided in the rotating disk 53, the plurality of connecting grooves 532 correspond to the positions of the mounting grooves 542, and an electromagnet 59 is provided in the connecting groove 532;

[0056] When fixing: the locking column 58 is inserted into the connecting groove 532 .

[0057] In order to prevent the cutting torch 55 from shaking during cutting, when the rotating motor 56 stops, the electromagnet 59 is turned on, and the locking column 58 is made of ferromagnetic material. Under the action of the magnetic force of the electromagnet 59, the reset spring 57 is stretched, and the locking column 58 slides along the installation groove 542 and is inserted into the connecting groove 532, thereby locking the fixed frame 54. Before starting the rotating motor 56, the electromagnet 59 is disconnected first, and the locking column 58 will be retracted into the installation groove 542 under the action of the elastic force of the reset spring 57, thereby releasing the lock on the fixed frame 54.

[0058] The working principle of the present invention is as follows: first, the device is fixed on the pipeline, and the mobile trolley 1 is fixed on the pipeline by the locking device 2, and the driving motor 23 and the rotating gear 24 cooperate to drive the mobile trolley 1 to start walking around the pipe wall along with the chain 25, and the defects of the pipeline are detected by the detection device 4, and the control system 6 locates the position to be cut, and then the pipeline is cut by the cutting component 5. In order to ensure the firmness of the welding part during the subsequent welding repair of the cut part, the vertical section of the cutting seam needs to be set to an outward eight-shaped shape. In this way, after the welding repair, under the action of the pressure in the pipeline, the welding part will fit more closely with the original pipeline, and the repaired part will be more firm. However, when the inclined cutting torch 55 is cutting incisions of different sizes, because the pipeline itself curvature. If the cutting angle remains unchanged, the larger the cutting range, the longer the length of the cutting seam will be. In order to ensure the consistency of the length of the cutting seam and prevent the flow path of the welding liquid from being too long and unable to penetrate during the subsequent welding repair process, resulting in insufficient welding strength, the inclination angle of the cutting torch 55 needs to be automatically adjusted according to the size of the defect on the pipeline to keep the length of the cutting seam consistent. The larger the defect area, the larger the area to be cut, and the larger the required inclination angle of the cutting torch 55. The control system 6 can control the rotation angle of the rotating disk 53 according to the defect size measured by the detection device 4, so as to control the cutting angle of the cutting torch 55 within a suitable range. In order to ensure stability during cutting, the fixing frame 54 is automatically locked by the cooperation of the reset spring 57, the locking column 58 and the electromagnet 59.

[0059] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0060] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic cutting device for nuclear industry that is radiation-resistant and can be remotely controlled, characterized in that: The automatic cutting device comprises a moving trolley (1), a locking device (2), an adjusting device (3), a detection device (4), and a cutting assembly (5); the moving trolley (1) is used to move on the pipeline; the locking device (2) is tightly connected to the moving trolley (1); the detection device (4) is tightly connected to the adjusting device (3); the detection device (4) is used to detect defects in the pipeline; the cutting assembly (5) is tightly connected to the adjusting device (3); the cutting assembly (5) is used to cut the pipeline; a control system (6) is provided on the moving trolley (1); the control system (6) is electrically connected to the detection device (4); and a shielding cover (7) is provided on the control system (6); The adjusting device (3) comprises a first push rod (31) and a second push rod (32); the first push rod (31) is tightly connected to the moving trolley (1); the output end of the first push rod (31) is connected to a detection device (4); the second push rod (32) is tightly connected to the moving trolley (1); the output end of the second push rod (32) is connected to a cutting assembly (5); The detection device (4) comprises a hydraulic cylinder (41) and an ultrasonic detector (42), wherein the hydraulic cylinder (41) is tightly connected to the output end of the first push rod (31), the ultrasonic detector (42) is connected to the output end of the hydraulic cylinder (41), the detection end of the ultrasonic detector (42) faces the pipeline, and the ultrasonic detector (42) is electrically connected to the control system (6); The cutting assembly (5) comprises a rotating motor (51), an electric push rod (52), a rotating disk (53), a fixed frame (54), and a cutting torch (55); the rotating motor (51) is fixedly connected to the output end of the second push rod (32); the electric push rod (52) is transmission-connected to the output end of the rotating motor (51); the rotating disk (53) is fixedly connected to the output end of the electric push rod (52); the fixed frame (54) is rotationally connected to the rotating disk (53); the cutting torch (55) is fixedly connected to the fixed frame (54); and the cutting torch (55) is externally connected to an air source; The cutting torch (55) is placed at an angle, and the upper end of the cutting torch (55) is close to the rotation center of the cutting assembly (5); The rotating disk (53) is provided with a transmission cavity (531), a rotating motor (56) is provided in the transmission cavity (531), a transmission gear (561) is provided at the output end of the rotating motor (56), and a tooth surface (541) is provided at one end of the fixing frame (54) inserted into the transmission cavity (531), and the transmission gear (561) meshes with the tooth surface (541); The control system (6) can control the rotation angle of the rotating disk (53) according to the defect size measured by the detection device (4), thereby controlling the cutting angle of the cutting torch (55) within a suitable range.

2. The radiation-resistant and remotely controllable automatic cutting device for nuclear industry according to claim 1, characterized in that: The locking device (2) comprises a support frame (21), a sliding frame (22), and a driving motor (23); the support frame (21) is fixedly connected to the moving trolley (1); the sliding frame (22) is slidably connected to the support frame (21); the driving motor (23) is fixedly connected to the sliding frame (22); a rotating gear (24) is provided at the output end of the driving motor (23); a chain (25) is connected to the rotating gear (24); and the chain (25) is sleeved on the pipeline.

3. The automatic cutting device for nuclear industry that is radiation-resistant and can be remotely controlled according to claim 2, characterized in that: The locking device (2) further comprises a telescopic cylinder (26), wherein the telescopic cylinder (26) is firmly connected to the support frame (21), and an output end of the telescopic cylinder (26) is firmly connected to the sliding bracket (22).

4. The radiation-resistant remotely controllable automatic cutting device for nuclear industry according to claim 1, characterized in that: A plurality of mounting grooves (542) are provided at one end of the fixing frame (54) close to the rotating disk (53), a plurality of the mounting grooves (542) are provided with return springs (57) and locking columns (58), the return springs (57) are fixedly connected to the locking columns (58), the locking columns (58) are slidably connected to the mounting grooves (542), a plurality of connecting grooves (532) are provided in the rotating disk (53), the positions of the plurality of connecting grooves (532) and the mounting grooves (542) correspond, and an electromagnet (59) is provided in the connecting grooves (532); When fixing: the locking column (58) is inserted into the connecting groove (532).

Images