Radioactive super-thick nuclear graphite plate cutting equipment

Abstract

The invention relates to the technical field of cutting, in particular to radioactive ultra-thick nuclear graphite plate cutting equipment which comprises a drilling and cutting assembly and a cutting assembly, the drilling and cutting assembly comprises a conversion driving mechanism and a conversion shell rotationally arranged on the outer side of the conversion driving mechanism, and a drilling mechanism and a cutting mechanism are arranged at the upper end and the lower end of the conversion shell correspondingly; a dry ice pipeline is arranged at the bottom of the conversion driving mechanism; the anti-blocking assembly comprises a connecting mechanism movably connected with the dry ice pipeline. The method has the beneficial effects that an operator manually controls the mode of drilling first and then cutting, stress concentration in a material is reduced, the risk of crack formation is reduced, meanwhile, the needed cutting force is reduced, dry ice is used as a cooling medium, the problems of material deformation and thermal stress caused by high temperature are reduced, and the service life of the material is prolonged. In the cutting process, the diamond wires are adopted, and dry ice cooling is matched, so that fragments and dust generated in the cutting process can be remarkably reduced.

Description

Technical Field

[0001] The invention relates to the field of cutting technology, in particular to a radioactive ultra-thick nuclear graphite plate cutting device. Background Art

[0002] Graphite drilling and cutting allows large blocks of graphite to be cut into smaller graphite sheet components for easier packaging, storage and transportation to final disposal sites, while also making them easier to compact and store safely for long periods of time.

[0003] At present, most of the existing graphite cutting devices are desktop cutting devices, which can only be used for cutting scattered graphite. In addition, since the graphite in nuclear facilities expands after long-term irradiation, the graphite blocks are squeezed and bonded to each other, making it difficult to remove the graphite blocks intact. The existing graphite cutting devices cannot directly cut the graphite blocks installed in nuclear facilities. In addition, traditional graphite cutting devices are mostly in the form of circular saws, and the cutting process will generate a large amount of debris and dust. Summary of the invention

[0004] Some simplifications or omissions may be made in this section and the abstract and title of the present application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] The invention aims to provide a radioactive ultra-thick nuclear graphite plate cutting device.

[0006] Therefore, its purpose is to solve the following problems: the existing graphite cutting devices cannot directly cut the graphite blocks installed in nuclear facilities. In addition, traditional graphite cutting devices are mostly in the form of circular saws, and the cutting process will generate a large amount of debris and dust. The laser cutting device is difficult to cut through nuclear graphite and has serious heat accumulation.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a radioactive ultra-thick nuclear graphite plate cutting device, comprising a drilling and cutting assembly, comprising a conversion drive mechanism, a conversion shell rotatably arranged on the outside of the conversion drive mechanism, the upper and lower ends of the conversion shell are respectively equipped with a drilling mechanism and a cutting mechanism, and a dry ice pipe is provided at the bottom of the conversion drive mechanism; an anti-blocking assembly, comprising a connecting mechanism movably connected to the dry ice pipe, a first dustproof mechanism is installed in the middle of the air outlet of the connecting mechanism, a second dustproof mechanism is movably installed on the coaxial outer side of the first dustproof mechanism, a plurality of flexible shielding layers are fixed to the bottom of the second dustproof mechanism, a cleaning mechanism for cleaning the first dustproof mechanism is provided above the first dustproof mechanism, the cleaning mechanism applies magnetic force to the first dustproof mechanism to control the tightness of the filter screen in the first dustproof mechanism; an expansion assembly, comprising a compression mechanism, the compression mechanism is used to control the expansion or contraction of the shielding mechanism to prevent dust from adhering to the inner wall of the first dustproof mechanism.

[0008] As a preferred solution of the radioactive ultra-thick nuclear graphite plate cutting device of the present invention, wherein: the conversion drive mechanism includes a drive housing, a drive rod is rotatably connected inside the drive housing, one end of the drive rod passes through the drive housing and is fixed to the conversion housing to drive the conversion housing to flip, a drive gear is fixed to the outside of the drive rod, a driving gear is meshed at the bottom of the drive gear, and one end of the driving gear is transmission-connected to a servo motor; A dust suction mechanism is fixed at the bottom of the driving housing, and the dust suction mechanism is connected to an external dust suction device.

[0009] As a preferred solution of the radioactive ultra-thick nuclear graphite plate cutting equipment of the present invention, wherein: the cutting mechanism includes a reciprocating gear rotatably arranged inside the conversion shell, a driven gear is meshed on one side of the reciprocating gear, a crank mechanism is fixed on the outside of the driven gear, and a reciprocating slider is rotatably connected to the end of the crank mechanism away from the driven gear, and the end of the reciprocating slider away from the crank mechanism movably penetrates the conversion shell, and a diamond wire is installed on the reciprocating slider.

[0010] As a preferred solution of the radioactive ultra-thick nuclear graphite plate cutting device of the present invention, wherein: the connecting mechanism includes a connecting shell threadedly connected to the dry ice pipe, a tube body is fixed inside the connecting shell, a first hole and a second hole are respectively opened on the tube body, and a separation cover is fixed between the first hole and the second hole; The outside of the tube body is connected with a delivery pipe, the air outlet of the delivery pipe is arranged at the same level as the first hole, and the air inlet of the delivery pipe is connected with a dry ice pipeline.

[0011] As a preferred solution of the radioactive ultra-thick nuclear graphite plate cutting equipment of the present invention, wherein: the cleaning mechanism includes a piston rod slidably arranged inside the tube body, a shielding air-permeable plate corresponding to the first hole is fixed to the bottom of the piston rod, the shielding air-permeable plate is used to guide the airflow into the first hole or the second hole, a driving groove is opened on the outside of the shielding air-permeable plate, a rotating cylinder is sleeved on the bottom of the shielding air-permeable plate, and a sliding rod is provided inside the rotating cylinder and extends into the driving groove and is slidably arranged with the driving groove.

[0012] As a preferred solution of the radioactive ultra-thick nuclear graphite plate cutting device of the present invention, wherein: the rotating cylinder and the tube body are rotatably arranged, and a cleaning rod body for cleaning the first dustproof mechanism is fixed to the bottom of the rotating cylinder.

[0013] As a preferred solution of the radioactive ultra-thick nuclear graphite plate cutting equipment of the present invention, wherein: the first dust prevention mechanism includes a circular frame, a cleaning filter is provided inside the circular frame, and a plurality of movable blocks fixedly connected to the cleaning filter are movably provided inside the circular frame.

[0014] As a preferred solution of the radioactive ultra-thick nuclear graphite plate cutting equipment of the present invention, a magnetic sheet is fixed on the top of the movable block, a magnetic block for pushing the magnetic sheet to move is fixed on the bottom of the cleaning rod, and each movable block is abutted against a spring on one side.

[0015] As a preferred solution of the radioactive ultra-thick nuclear graphite plate cutting equipment of the present invention, the compression mechanism includes a compression box body fixedly connected to the tube body, a compression cover body is threadedly connected to the bottom of the compression box body, a medium solution is filled between the compression box body and the compression cover body, and the compression cover body is slidably arranged on the central axis rotating rod of the cleaning rod body.

[0016] As a preferred solution of the radioactive ultra-thick nuclear graphite plate cutting equipment of the present invention, the shielding mechanism includes a plurality of filter holes opened on a circular frame, the filter holes are used to accommodate the movable penetration of the cleaning filter, and two symmetrically distributed filter holes are fixed on the inner wall of the circular frame, and the filter holes are connected to the compression box body through a pipe.

[0017] The beneficial effects of the radioactive ultra-thick nuclear graphite plate cutting equipment of the present invention are: through the operator's manual control of drilling first and then cutting, the stress concentration inside the material is reduced, the risk of crack formation is reduced, and the required cutting force is reduced. The use of dry ice as a cooling medium can effectively reduce the temperature of the processing area and reduce material deformation and thermal stress problems caused by high temperature. The use of diamond wire in the cutting process and dry ice cooling can significantly reduce the debris and dust generated during the cutting process.

[0018] When the first dust-proof mechanism is blocked, the device can automatically switch to the second dust-proof mechanism and ensure the stability of gas circulation through the linkage mechanism of the piston rod and the shielding breathable plate. This reduces the risk of equipment damage caused by blockage, reduces the maintenance burden, and extends the service life of the entire system.

[0019] The rotation of the magnetic block can drive multiple movable blocks to slide, thereby changing the tightness of the cleaning filter; generating vibration, which helps to shake off the dust attached to the filter.

[0020] The elastic expansion strip expands or contracts when the internal volume of the compression box changes, which can reduce friction and enable the filter to slide more smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them: Figure 1 It is a schematic diagram of the front cross-sectional structure of the radioactive ultra-thick nuclear graphite plate cutting device in the present invention.

[0022] Figure 2 It is a schematic diagram of the side cross-sectional structure of the radioactive ultra-thick nuclear graphite plate cutting device in the present invention.

[0023] Figure 3 The radioactive ultra-thick nuclear graphite plate cutting device of the present invention Figure 2 Schematic diagram of the enlarged structure of part A in the middle.

[0024] Figure 4 It is a schematic diagram of the cross-sectional three-dimensional structure of the anti-clogging component of the radioactive ultra-thick nuclear graphite plate cutting equipment in the present invention.

[0025] Figure 5 The radioactive ultra-thick nuclear graphite plate cutting device of the present invention Figure 4 Schematic diagram of the structure from the middle side.

[0026] Figure 6 It is a schematic diagram of the top cross-sectional structure of the first dust prevention mechanism of the radioactive ultra-thick nuclear graphite plate cutting equipment in the present invention.

[0027] Figure 7 It is a schematic diagram of the cross-sectional structure of the expansion component of the radioactive ultra-thick nuclear graphite plate cutting equipment in the present invention.

[0028] In the figure: 100, drilling and cutting assembly; 101, conversion drive mechanism; 102, conversion housing; 103, drilling mechanism; 104, cutting mechanism; 105, dust collection mechanism; 106, dry ice pipe; 101a, driving housing; 101b, driving rod; 101c, driving gear; 101b-1, driving gear; 106a, conveying pipe; 104a, reciprocating gear; 104b, driven gear; 104c, crank mechanism; 104d, reciprocating slider; 104e, diamond wire; 200, anti-blocking assembly; 201, connecting mechanism; 202, first dust-proof mechanism; 203, second dust-proof mechanism; 204, cleaning mechanism; 201a, connecting shell; 201b, tube body; 201c, first hole; 201d, second hole; 201e, separation cover; 202a, circular frame; 202b, movable block; 202c, cleaning filter; 202d, magnetic sheet; 202e, adsorption block; 204a, piston rod; 204b, shielding air-permeable plate; 204c, driving groove; 204d, rotating cylinder; 204e, cleaning rod body; 300, expansion assembly; 301, compression mechanism; 302, shielding mechanism; 301a, compression box body; 301b, compression cover body; 302a, filter hole; 302b, elastic expansion strip. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0032] Example 1, reference Figure 1-Figure 2 , is the first embodiment of the present invention, which provides a radioactive ultra-thick nuclear graphite plate cutting device, a drilling and cutting assembly 100, which includes a conversion drive mechanism 101, a conversion shell 102 rotatably arranged outside the conversion drive mechanism 101, a drilling mechanism 103 and a cutting mechanism 104 are respectively installed at the upper and lower ends of the conversion shell 102, and a dry ice pipe 106 is provided at the bottom of the conversion drive mechanism 101; an anti-blocking assembly 200, which includes a connecting mechanism 201 movably connected to the dry ice pipe 106, and a first dustproof mechanism 20 is installed in the middle of the air outlet of the connecting mechanism 201 2. A second dustproof mechanism 203 is movably mounted on the outer side of the coaxial center of the first dustproof mechanism 202, a plurality of flexible shielding layers are fixed to the bottom of the second dustproof mechanism 203, a cleaning mechanism 204 for cleaning the first dustproof mechanism 202 is arranged above the first dustproof mechanism 202, the cleaning mechanism 204 applies a magnetic force to the first dustproof mechanism 202 to control the tightness of the filter screen in the first dustproof mechanism 202; an expansion assembly 300, which includes a compression mechanism 301, the compression mechanism 301 is used to control the expansion or contraction of the shielding mechanism 302 to prevent dust from adhering to the inner wall of the first dustproof mechanism 202.

[0033] The conversion drive mechanism 101 provides power and controls the switching between drilling and cutting operations; the conversion housing 102 is rotatably arranged outside the conversion drive mechanism 101 to protect the internal structure and support the drilling and cutting mechanism; the drilling mechanism 103 is installed at the upper end of the conversion housing 102 to drill holes in ultra-thick nuclear graphite; the cutting mechanism 104 is installed at the lower end of the conversion housing 102 to cut ultra-thick nuclear graphite materials; the dry ice pipe 106 is arranged at the bottom of the conversion drive mechanism 101 for cooling; the first dustproof mechanism 202 is used to block dust Enter the system; the second dustproof mechanism 203 is movably installed on the coaxial outer side of the first dustproof mechanism 202, and a plurality of flexible shielding layers are fixed on the bottom to further prevent dust from entering; the cleaning mechanism 204 is arranged above the first dustproof mechanism 202, and controls the tightness of the filter by applying magnetic force, so as to clean the dust on the filter; the compression mechanism 301 controls the expansion or contraction of the shielding mechanism 302; the shielding mechanism 302 expands or contracts under the control of the compression mechanism 301 to prevent dust from adhering to the inner wall of the first dustproof mechanism 202.

[0034] The conversion drive mechanism 101 includes a driving shell 101a, and a driving rod 101b is rotatably connected inside the driving shell 101a. One end of the driving rod 101b passes through the driving shell 101a and is fixed to the conversion shell 102 to drive the conversion shell 102 to flip. A driving gear 101b-1 is fixed to the outside of the driving rod 101b, and a driving gear 101c is meshed at the bottom of the driving gear 101b-1. One end of the driving gear 101c is transmission-connected to a servo motor; a dust suction mechanism 105 is fixed to the bottom of the driving shell 101a, and the dust suction mechanism 105 is connected to an external dust suction device. The lower half of the dust suction mechanism 105 is set as a deformable tube that can be bent and shaped. The cutting mechanism 104 includes a reciprocating gear 104a rotatably arranged inside the conversion shell 102, a driven gear 104b is meshed with one side of the reciprocating gear 104a, a crank mechanism 104c is fixed to the outside of the driven gear 104b, and a reciprocating slider 104d is rotatably connected to the end of the crank mechanism 104c away from the driven gear 104b, and the end of the reciprocating slider 104d away from the crank mechanism 104c movably passes through the conversion shell 102, and a diamond wire 104e is installed on the reciprocating slider 104d.

[0035] In this embodiment, when in use, the operator moves the drilling and cutting assembly 100 to the designated workstation by controlling a tool such as a robotic arm, starts the conversion drive mechanism 101, and the active gear 101c rotates to a preset number of circles driven by the servo motor. The active gear 101c drives the drive rod 101b to rotate through the meshing drive gear 101b-1, and the drive rod 101b drives the fixedly connected conversion housing 102 to rotate, thereby manually switching the device and aligning the drilling mechanism 103 with the drilling position.

[0036] When drilling, the operator controls the drilling mechanism 103 to feed gradually by controlling tools such as a robotic arm to ensure the depth of the drilling. The drilling mechanism 103 consists of a drilling motor and a drill bit. The drilling motor is fixed to the conversion housing 102 by bolts, and the drill bit is installed at the output end of the drilling motor.

[0037] After drilling is completed, the operator manually controls the drilling and cutting assembly 100 to switch the device, aligns the cutting mechanism 104 with the position to be cut, and when the cutting mechanism 104 is started, the reciprocating gear 104a is driven by the motor to rotate at a high speed, and transmits power to the meshing driven gear 104b, so that the driven gear 104b drives the crank mechanism 104c to rotate. During the rotation of the crank mechanism 104c, the reciprocating slider 104d is pushed and pulled back and forth, so that the diamond wire 104e installed on the reciprocating slider 104d moves up and down quickly, thereby cutting the object. Among them, the crank mechanism 104c is composed of two crank rods connected in rotation.

[0038] During the cutting process, the internal stress of the material is reduced by drilling first and then cutting, which significantly reduces the required cutting force and effectively controls the debris and dust generated during the cutting process.

[0039] In addition, gas is transported to the dry ice pipe 106 through external equipment such as a fan, and the air outlet of the dry ice pipe 106 is aimed at the area to be processed, so that the ejected gas can locally cool the drilling area to reduce the temperature of the operating area and reduce the thermal stress and heat-affected zone of the nuclear graphite during the drilling process. Subsequently, the diamond wire 104e is switched to cutting. During the cutting process of the diamond wire 104e, the dry ice pipe 106 continues to cool the cutting area to reduce the risk of heat accumulation.

[0040] By starting the dust suction mechanism 105, the dust suction mechanism 105 absorbs the radioactive dust and carbon monoxide generated during the cutting process in real time, thereby preventing pollution, ensuring the safety of the working environment, and effectively controlling the debris and dust generated during the cutting process.

[0041] In summary, the operator manually controls the drilling before cutting, which reduces stress concentration inside the material, reduces the risk of crack formation, and reduces the required cutting force.

[0042] Using dry ice as a cooling medium can effectively reduce the temperature of the processing area and reduce material deformation and thermal stress problems caused by high temperature.

[0043] The use of diamond wire 104e during the cutting process, combined with dry ice cooling, can significantly reduce the debris and dust generated during the cutting process.

[0044] The use of the dust collection mechanism 105 further ensures the cleanliness of the working environment, reduces the spread of radioactive dust and harmful gases such as carbon monoxide, and improves safety.

[0045] Example 2, reference Figure 3-Figure 5 , which is the second embodiment of the present invention. Different from the previous embodiment, the connecting mechanism 201 includes a connecting shell 201a threadedly connected to the dry ice pipe 106, a tube body 201b is fixed inside the connecting shell 201a, a first hole 201c and a second hole 201d are respectively opened on the tube body 201b, and a separation cover 201e is fixed between the first hole 201c and the second hole 201d; the outer side of the tube body 201b is connected to the delivery pipe 106a, the air outlet of the delivery pipe 106a and the first hole 201c are arranged at the same level, and the air inlet of the delivery pipe 106a is connected to the dry ice pipe 106. The cleaning mechanism 204 includes a piston rod 204a slidably arranged inside the tube body 201b, a shielding air-permeable plate 204b corresponding to the first hole 201c is fixed at the bottom of the piston rod 204a, the shielding air-permeable plate 204b is used to guide the airflow into the first hole 201c or the second hole 201d, a driving groove 204c is provided on the outside of the shielding air-permeable plate 204b, a rotating cylinder 204d is sleeved at the bottom of the shielding air-permeable plate 204b, and a sliding rod extending into the driving groove 204c and slidingly arranged with the driving groove 204c is arranged inside the rotating cylinder 204d. The rotating cylinder 204d is rotatably arranged with the tube body 201b, and a cleaning rod body 204e for cleaning the first dustproof mechanism 202 is fixed at the bottom of the rotating cylinder 204d.

[0046] Since the dry ice pipe 106 needs a stable supply of dry ice and precise control of the spraying amount to ensure that the drilling and cutting areas are properly cooled, the dry ice pipe 106 and the dust suction mechanism 105 can be used together to remove most of the dust generated during work, but some dust will still adhere to the first dust prevention mechanism 202. If the first dust prevention mechanism 202 is blocked, it may cause local overheating, increase thermal stress and heat-affected zone.

[0047] In order to solve the above problem, by adding an anti-clogging component 200, the filter screen can be automatically cleaned according to the pressure inside the dry ice pipe 106.

[0048] The gas is transported into the tube body 201b through the delivery pipe 106a, and the gas flows out through the first hole 201c and is sprayed from the first dustproof mechanism 202 to the processing area to achieve cooling. When the first dustproof mechanism 202 is blocked by dust and affects the circulation of the gas, the gas pressure in the tube body 201b will increase. When the pressure generated by the gas pressure overcomes the elastic force of the tension spring sleeved with the piston rod 204a, the piston rod 204a slides upward, and the sliding of the piston rod 204a drives the shielding air-permeable plate 204b to slide, and the shielding air-permeable plate 204 b will block the first hole 201c and open the second hole 201d, so that the gas flows out from the second dustproof mechanism 203, and the switching of the first dustproof mechanism 202 and the second dustproof mechanism 203 is realized through pressure, so as to ensure the stability of the gas outflow, and a flexible shielding layer is attached to the bottom of the second dustproof mechanism 203, so that the second dustproof mechanism 203 can be prevented from being blocked by dust when not in use. During use, the gas causes the flexible shielding layer to deform due to pressure, so that the gas can be sprayed out normally for cooling.

[0049] In addition, when the piston rod 204a moves upward, the driving groove 204c cooperates with the sliding rod to push the rotating cylinder 204d to rotate to a preset angle, thereby driving the cleaning rod body 204e to rub against the first dustproof mechanism 202, and the bristles on the cleaning rod body 204e will play a preliminary cleaning role on the dust on the first dustproof mechanism 202.

[0050] Example 3, reference Figure 4-Figure 6 , which is the third embodiment of the present invention, and this embodiment further provides a radioactive ultra-thick nuclear graphite plate cutting device. The first dust prevention mechanism 202 includes a circular frame 202a, a cleaning filter 202c is provided inside the circular frame 202a, and a plurality of movable blocks 202b fixedly connected to the cleaning filter 202c are movably provided inside the circular frame 202a. A magnetic sheet 202d is fixed on the top of the movable block 202b, and a magnetic block that pushes the magnetic sheet 202d to move is fixed on the bottom of the cleaning rod 204e, and each movable block 202b is abutted against a contact spring 202e on one side.

[0051] The adsorption force generated by the magnetic block on the magnetic sheet 202d overcomes the elastic force of the abutting spring 202e, so when the magnetic block corresponds to the magnetic sheet 202d, the movable block 202b will move, reducing the tightness of the cleaning filter 202c connected to it, and improving the cleaning effect of the cleaning rod 204e. When the magnetic block is separated from the magnetic sheet 202d, the movable block 202b is quickly reset under the action of the elastic force of the abutting spring 202e, thereby vibrating the cleaning filter 202c, further shaking off the adhered dust.

[0052] As can be seen from the above, when the cleaning rod 204e drives the magnetic block to rotate, the magnetic block will sequentially drive the plurality of movable blocks 202b to slide, thereby improving the cleaning efficiency of the cleaning filter 202c.

[0053] Reference Figure 4-Figure 7 The compression mechanism 301 includes a compression box body 301a fixedly connected to the tube body 201b, a compression cover body 301b is threadedly connected to the bottom of the compression box body 301a, a medium solution is filled between the compression box body 301a and the compression cover body 301b, and the compression cover body 301b is slidably arranged on the central axis rotating rod of the cleaning rod body 204e. The shielding mechanism 302 includes a plurality of filter holes 302a opened on the circular frame 202a, the filter holes 302a are used to accommodate the cleaning filter 202c to be movably inserted, and two symmetrically distributed filter holes 302a are fixed on the inner wall of the circular frame 202a, and the filter holes 302a are connected to the compression box body 301a through a pipeline.

[0054] When the cleaning rod body 204e rotates, it will synchronously drive the compression cover body 301b fixed at the central axis rotating rod to rotate. The compression cover body 301b is threadedly connected to the compression box body 301a, so the compression box body 301a moves downward, thereby increasing the internal volume of the compression box body 301a, so that the elastic expansion strip 302b shrinks under the action of elasticity, thereby transporting the internal medium solution into the compression box body 301a, and the elastic expansion strip 302b after shrinkage will separate from the cleaning filter 202c, thereby reducing the friction damping of the cleaning filter 202c.

[0055] That is to say, when the elastic expansion strip 302b expands, it will fit with the cleaning filter 202c and block the filter hole 302a to prevent external dust from adhering, thereby affecting the sliding smoothness of the cleaning filter 202c. When the elastic expansion strip 302b contracts, the friction damping of the cleaning filter 202c is reduced, so that the cleaning filter 202c can be normally tightened and adjusted.

[0056] Importantly, it should be noted that the construction and arrangement of the present application shown in a number of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, changes in orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete element may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to an alternative embodiment. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structure. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0057] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment may not be described (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those features that are not relevant to implementing the invention).

[0058] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0059] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A radioactive ultra-thick nuclear graphite plate cutting device, characterized in that: include, A drilling and cutting assembly (100), comprising a conversion drive mechanism (101), a conversion housing (102) rotatably arranged outside the conversion drive mechanism (101), a drilling mechanism (103) and a cutting mechanism (104) being respectively mounted on the upper and lower ends of the conversion housing (102), and a dry ice pipe (106) being disposed at the bottom of the conversion drive mechanism (101); An anti-clogging component (200) comprises a connecting mechanism (201) movably connected to the dry ice pipe (106), a first dustproof mechanism (202) being installed in the middle of the air outlet of the connecting mechanism (201), a second dustproof mechanism (203) being movably installed coaxially outside the first dustproof mechanism (202), a plurality of flexible shielding layers being fixed to the bottom of the second dustproof mechanism (203), a cleaning mechanism (204) for cleaning the first dustproof mechanism (202) being installed above the first dustproof mechanism (202), the cleaning mechanism (204) applying magnetic force to the first dustproof mechanism (202) to control the degree of tension of the filter screen in the first dustproof mechanism (202); An expansion assembly (300) comprises a compression mechanism (301), wherein the compression mechanism (301) is used to control the expansion or contraction of a shielding mechanism (302) to prevent dust from adhering to the inner wall of the first dustproof mechanism (202).

2. The radioactive ultra-thick nuclear graphite plate cutting device according to claim 1, characterized in that: The conversion drive mechanism (101) comprises a drive housing (101a), a drive rod (101b) being rotatably connected inside the drive housing (101a), one end of the drive rod (101b) passing through the drive housing (101a) and being fixed to the conversion housing (102) so as to drive the conversion housing (102) to flip, a drive gear (101b-1) being fixed outside the drive rod (101b), a driving gear (101c) being meshed at the bottom of the drive gear (101b-1), and one end of the driving gear (101c) being drivingly connected to a servo motor; A dust suction mechanism (105) is fixed to the bottom of the driving housing (101a), and the dust suction mechanism (105) is connected to an external dust suction device.

3. The radioactive ultra-thick nuclear graphite plate cutting device according to claim 2, characterized in that: The cutting mechanism (104) comprises a reciprocating gear (104a) rotatably arranged inside the conversion housing (102); a driven gear (104b) is meshed on one side of the reciprocating gear (104a); a crank mechanism (104c) is fixed on the outside of the driven gear (104b); an end of the crank mechanism (104c) away from the driven gear (104b) is rotatably connected to a reciprocating slider (104d); an end of the reciprocating slider (104d) away from the crank mechanism (104c) movably penetrates the conversion housing (102); and a diamond wire (104e) is mounted on the reciprocating slider (104d).

4. The radioactive ultra-thick nuclear graphite plate cutting device as claimed in claim 3, characterized in that: The connection mechanism (201) comprises a connection shell (201a) threadedly connected to the dry ice pipe (106); a tube body (201b) is fixed inside the connection shell (201a); a first hole (201c) and a second hole (201d) are respectively provided on the tube body (201b); and a separation cover (201e) is fixed between the first hole (201c) and the second hole (201d); The outside of the tube body (201b) is connected to a delivery pipe (106a); the air outlet of the delivery pipe (106a) and the first hole (201c) are arranged at the same level; and the air inlet of the delivery pipe (106a) is connected to a dry ice pipeline (106).

5. The radioactive ultra-thick nuclear graphite plate cutting device as claimed in claim 4, characterized in that: The cleaning mechanism (204) comprises a piston rod (204a) slidably arranged inside the tube body (201b); a shielding air-permeable plate (204b) corresponding to the first hole (201c) is fixed to the bottom of the piston rod (204a); the shielding air-permeable plate (204b) is used to guide airflow to flow into the first hole (201c) or the second hole (201d); a driving groove (204c) is provided on the outside of the shielding air-permeable plate (204b); a rotating cylinder (204d) is sleeved on the bottom of the shielding air-permeable plate (204b); a sliding rod is provided inside the rotating cylinder (204d) and extends into the driving groove (204c) and is slidably arranged with the driving groove (204c).

6. The radioactive ultra-thick nuclear graphite plate cutting device according to claim 5, characterized in that: The rotating cylinder (204d) is rotatably arranged with the tube body (201b), and a cleaning rod body (204e) for cleaning the first dust prevention mechanism (202) is fixed to the bottom of the rotating cylinder (204d).

7. The radioactive ultra-thick nuclear graphite plate cutting device according to claim 6, characterized in that: The first dust prevention mechanism (202) comprises a circular frame (202a), a cleaning filter (202c) is provided inside the circular frame (202a), and a plurality of movable blocks (202b) fixedly connected to the cleaning filter (202c) are movably provided inside the circular frame (202a).

8. The radioactive ultra-thick nuclear graphite plate cutting device according to claim 7, characterized in that: A magnetic sheet (202d) is fixed on the top of the movable block (202b), a magnetic block for pushing the magnetic sheet (202d) to move is fixed on the bottom of the cleaning rod body (204e), and one side of each movable block (202b) is abutted against an abutting spring (202e).

9. The radioactive ultra-thick nuclear graphite plate cutting device according to claim 6, characterized in that: The compression mechanism (301) comprises a compression box body (301a) fixedly connected to the tube body (201b); a compression cover body (301b) is threadedly connected to the bottom of the compression box body (301a); a medium solution is filled between the compression box body (301a) and the compression cover body (301b); and the compression cover body (301b) is slidably arranged on the central axis rotating rod of the cleaning rod body (204e).

10. The radioactive ultra-thick nuclear graphite plate cutting device according to claim 9, characterized in that: The shielding mechanism (302) comprises a plurality of filter holes (302a) formed on a circular frame (202a), the filter holes (302a) being used to accommodate a cleaning filter (202c) for movable insertion, two symmetrically distributed filter holes (302a) being fixed on the inner wall of the circular frame (202a), and the filter holes (302a) being connected to the compression box body (301a) via a pipe.

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