A drilling device for a reactor shell

Abstract

The present application relates to the technical field of workpiece drilling equipment, and specifically discloses a drilling device for reactor shell, which comprises a machine body, a drill bit and a feeding mechanism arranged on the machine body, the drill bit being connected with the feeding mechanism through a connecting piece, and a collecting mechanism further arranged on the machine body, the collecting mechanism comprising a shell one, a shell two, a partition piece and a liquid inlet assembly, the shell one and the shell two both being cylindrical, the shell two being arranged on the front side of the shell one and being sleeved with the shell one, the partition piece being annular and arranged inside the shell two, a plurality of movable pieces being arranged on the inner side of the partition piece, and each movable piece being arranged to form a minimum space matched with the diameter of a drill bit rod; the liquid inlet assembly comprising a moving piece and a liquid inlet channel, a cavity one being arranged in the side wall of the shell two, the moving piece being in sliding fit with the cavity one and being elastically connected, the liquid inlet channel being in communication with the cavity one, the shell two being provided with a liquid inlet, and the moving piece being provided with a notch movably opposite to the liquid inlet, and the drilling device reduces the diffusion of debris in the machining process.

Description

Technical Field

[0001] This invention relates to the field of workpiece drilling equipment technology, and specifically to a drilling device for a reactor shell. Background Technology

[0002] During the production process, the reactor shell needs to be drilled using drilling equipment. During the drilling process, debris is generated. If the debris is not cleaned, it may leave scratches on the shell surface, affecting the surface finish and dimensional accuracy. The friction between the debris and the drill bit will accelerate the wear of the drill bit. If the debris enters the machine tool, it may also damage the precision components inside the machine tool. Therefore, it is necessary to clean the debris generated during the drilling operation in a timely manner.

[0003] Patent document CN118180441B discloses a drilling device for processing the internal base of a floor scrubber housing, including a processing table, a drilling mechanism, and a collection chamber. A first driving component is provided on the processing table, and three support platforms are provided on the outer side of the rotating frame. A second driving component is provided on the processing table, and a fixing component is provided on the bending frame. A stop arm is rotatably connected to the stop rod, a transmission component is provided on the support platforms, and a guide component is provided in the rotating frame. The drilling device in this patent document rotates the support platforms 180 degrees to pour the waste generated during drilling into the collection chamber, ensuring a clean and tidy workstation while reducing dust levels in the processing workshop, thus contributing to the maintenance of the workshop environment.

[0004] During drilling operations on the housing, heat is generated at the point where the drill bit contacts the housing. To prevent the drill bit and workpiece from overheating and affecting machining accuracy and drill bit lifespan, coolant is usually used to cool the drilling location. When the debris generated during drilling comes into contact with the coolant, it increases the adhesion of the debris to the workpiece, drill bit, and machining equipment. The aforementioned patent document makes it difficult to dump and collect the debris that adheres after contacting the coolant using a flipping tray, resulting in an unsatisfactory cleaning effect of debris during drilling operations. Summary of the Invention

[0005] This invention provides a drilling device for reactor shells, aiming to solve the problem that existing drilling devices in the related art are not ideal in cleaning debris adhering to coolant during drilling operations.

[0006] A drilling device for a reactor shell according to the present invention includes a body, on which a drill bit and a feeding mechanism are provided. The drill bit is connected to the feeding mechanism via a connector. The feeding mechanism drives the drill bit to drill a hole in the workpiece. The body is also provided with a collecting mechanism, which includes a first shell, a second shell, a separator, and a liquid inlet assembly. The first shell and the second shell are both cylindrical, with the side facing the workpiece as the front side. The second shell is located in front of the first shell and is slidably sleeved with the first shell. The first shell and the second shell are elastically connected. The separator is annular and coaxially arranged inside the second shell. The inner side of the separator is provided with a plurality of movable parts that slide radially relative to the separator. When each movable part moves inward to its limit position, it forms a space that matches the diameter of the drill bit rod.

[0007] The liquid inlet assembly includes a movable component and a liquid inlet channel. A cavity is provided in the side wall of the housing second. The movable component is slidably engaged with the cavity first. The liquid inlet channel communicates with the cavity first. The movable component is elastically connected to the cavity first. A notch is provided on the movable component. A liquid inlet is provided on the side wall of the housing second that is in contact with the movable component. The liquid inlet is movably opposite to the notch.

[0008] The beneficial effects are as follows: The collecting mechanism is used to collect the debris generated during the drilling operation and prevent the debris from leaving the collecting mechanism's range, limiting the diffusion range of the debris, ensuring the working environment for drilling the reactor shell, and preventing debris from entering the machine tool. The coolant enters the shell two through cavity one and flows from back to front through the separator within the shell two. Because the front end of the shell two is in contact with the workpiece and is in a relatively closed state, the cavities on both sides of the separator are gradually filled with coolant. Then, the feeding mechanism drives the drill bit to rotate forward to drill the workpiece. Because the shell two is covered outside the drill bit and is in full contact with the workpiece, it can effectively prevent the debris generated during drilling from scattering. At the same time, the coolant filled in the shell two is in full contact with the workpiece's machining surface and the drill bit, which can also achieve a good cooling effect.

[0009] Preferably, the housing second further includes an adjusting member, which is annular in shape. The outer wall of the adjusting member is rotatably connected to the housing second via a torsion spring. The outer wall of the adjusting member is provided with a spiral guide groove. The adjusting member is circumferentially provided with a plurality of radially offset adjusting grooves relative to the adjusting member. Each movable member slides in cooperation with each adjusting groove. The partition is provided with a plurality of limiting grooves, each limiting groove being arranged radially along the partition. Each movable member slides in cooperation with each limiting groove. The side wall of the housing second for fitting the adjusting member is provided with a sliding groove. The movable member is provided with a guide block, which slides in cooperation with both the sliding groove and the guide groove.

[0010] The beneficial effects are as follows: It facilitates flexible adjustment of the relative positions of each moving part and the separator to adapt to different working states of the drill bit. During the process of the moving part being squeezed into the housing, the guide block drives the adjusting part to rotate and moves past the adjusting part to the rear side of the adjusting part. After the guide block and the adjusting block separate, the adjusting part resets under the action of the torsion spring. Each moving part moves outward and then inward. The size of the inner space of each moving part changes from first increasing to decreasing and then resetting. When the inner space of the moving part increases, a large amount of coolant passes through quickly and flows to the front side of the separator. After the moving part resets, because the drill bit rod has a spiral groove, there is a gap between the drill bit rod and the inner wall of each moving part. The coolant on the rear side of the separator can still flow to the front side of the separator through the liquid inlet hole on each moving part. The coolant flowing forward can also prevent debris from moving backward.

[0011] Preferably, the front end face of the guide block is arc-shaped, and the rear end face of the guide block is straight.

[0012] The beneficial effects are as follows: after the moving part returns to its initial position, the guide block can still dock with the guide groove. When the guide block resets after passing the separator, the arc-shaped surface on the front side of the guide block can slide along the axial direction of the housing after being squeezed by the separator. After the moving part is fully reset, it re-enters the front end of the guide groove. When the guide block moves from back to front, it does not slide along the guide groove and will not push the adjusting part to rotate.

[0013] Preferably, the second housing has a collection cavity in its side wall and a collection port communicating with the collection cavity on its inner wall. The collection port is located on the front side of the separator. The inner side of the second housing also has a baffle adjacent to the collection port, and the baffle is radially inclined relative to the second housing.

[0014] The beneficial effects are: timely collection and treatment of debris, avoiding excessive debris remaining in the casing and affecting the normal operation of the drill bit; as the coolant rotates with the drill bit, the debris is blocked by the baffle and enters the collection chamber from the collection port along with the coolant.

[0015] Preferably, the collection mechanism further includes a cleaning assembly, which includes a rotating component and a cleaning component. The rotating component includes a cylindrical rotating part and an annular connecting part. An annular cavity is provided in the thickness direction of the second housing. An annular groove is provided on the inner side wall of the cavity. The rotating part is located in the cavity and is rotatably connected to the second housing through a torsion spring. The connecting part is slidably engaged with the annular groove. The cleaning component is L-shaped and is in contact with both the front end face of the separator and the inner wall of the second housing. A spiral groove is provided on the outer side wall of the rotating part. A cavity is formed inside the first housing. A connecting rod is provided in the cavity. A slider is elastically connected to the connecting rod. The slider is movably opposite to and slidably engaged with the spiral groove.

[0016] The beneficial effects are as follows: when the first shell and the second shell slide relative to each other until the slider contacts the spiral groove, the rotating part rotates relative to the first shell under the cooperation of the slider and the spiral groove, and the torsion spring stores force. The connecting part rotates synchronously with the rotating part, and the cleaning part rotates with the connecting part. When the cleaning part rotates, it simultaneously fits against the front end face of the separator and the inner wall of the second shell, which facilitates further pushing of debris into the collection port.

[0017] Preferably, the front end face of the slider is straight, and the rear end face of the slider is curved.

[0018] Preferably, the baffle is a filter screen.

[0019] Preferably, each of the movable parts is fan-shaped, and each movable part is provided with a liquid inlet hole. The liquid inlet end of the liquid inlet hole is located on the rear side of the movable part, and the liquid outlet end of the liquid inlet hole is located on the inner end face of the movable part. The liquid inlet hole is inclined from rear to front and inward.

[0020] Preferably, any one of the movable parts has a slot, and a cleaning block is elastically connected in the slot. The cleaning block is used to slide with the slot on the drill bit body.

[0021] The beneficial effects of this invention are as follows:

[0022] (1) The collection mechanism is used to collect the debris generated during the drilling operation and prevent the debris from leaving the collection mechanism. It limits the diffusion range of the debris, ensures the working environment of the reactor shell drilling, and prevents the debris from entering the machine tool. The coolant enters the shell 2 through cavity 1 and flows from back to front through the partition in the shell 2. Because the front end of the shell 2 is in contact with the workpiece and is in a relatively closed state, the cavities on both sides of the partition are gradually filled with coolant. Then the feed mechanism drives the drill bit to rotate forward to drill the workpiece. Because the shell 2 is covered outside the drill bit and is in full contact with the workpiece, it can effectively prevent the debris generated during drilling from scattering. At the same time, the coolant filled in the shell 2 is in full contact with the workpiece processing surface and the drill bit, which can also play a good cooling effect.

[0023] (2) It is convenient to flexibly adjust the relative positions of each moving part and the partition to adapt to different working states of the drill bit. During the process of the moving part being squeezed into the housing, the guide block drives the adjusting part to rotate and moves past the adjusting part to the rear side of the adjusting part. After the guide block and the adjusting block are separated, the adjusting part is reset under the action of the torsion spring. Each moving part moves outward and then inward. The size of the inner space of each moving part changes from first increasing to decreasing and then resetting. When the inner space of the moving part increases, a large amount of coolant passes through quickly and flows to the front side of the partition. After the moving part is reset, because the drill bit rod is provided with a spiral groove, there is a gap between the drill bit rod and the inner wall of each moving part. The coolant on the rear side of the partition can still flow to the front side of the partition through the liquid inlet hole on each moving part. The coolant flowing forward can also block the debris from moving backward. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0025] Figure 2 This is a schematic diagram of the internal structure of the collecting mechanism in its initial state.

[0026] Figure 3 This is a schematic diagram of the internal structure of the collecting mechanism when each moving part moves outward.

[0027] Figure 4 This is a schematic diagram of the internal structure of the collection mechanism when the drill bit penetrates the workpiece.

[0028] Figure 5 This is a schematic diagram of the internal structure of the collection mechanism from another perspective when the drill bit penetrates the workpiece.

[0029] Figure 6 This is an exploded view of the adjusting and separating components.

[0030] Figure 7 This is a schematic diagram of the structure of the movable component in this invention.

[0031] Figure 8 This is an exploded view of the adjusting member and the separating member when the moving member slides outward relative to the separating member.

[0032] Figure 9 This is a schematic diagram of the structure of the rotating part, connecting part, and cleaning component in this invention.

[0033] Figure label:

[0034] 1. Body; 11. Feeding mechanism; 12. Connecting part; 13. Drill bit; 2. Housing II; 21. Moving part; 211. Notch; 212. Cavity I; 22. Separator; 221. Limiting groove; 23. Moving part; 231. Liquid inlet; 232. Guide part; 24. Adjusting part; 241. Adjusting groove; 242. Guide groove; 25. Rotating part; 251. Connecting part; 26. Cleaning part; 27. Collection chamber; 3. Housing I; 31. Water inlet; 32. Connecting rod. Detailed Implementation

[0035] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0036] like Figure 1 As shown, the drilling device for reactor shell of the present invention includes a body 1, on which a drill bit 13 and a feeding mechanism 11 are provided. The feeding mechanism 11 pushes the drill bit 13 close to the workpiece and drills a hole at a designated position on the workpiece. The drill bit 13 is connected to the feeding mechanism 11 through a connector 12. To facilitate the replacement of worn drill bits 13, the drill bit 13 can be detachably connected to the connector 12. The connection methods between the drill bit 13 and the connector 12 include, but are not limited to, snap-fit, clamping, and threaded engagement. The body 1 is also provided with a collection mechanism, which is used to collect the debris generated during the drilling operation and prevent the generated debris from leaving the range of the collection mechanism, limit the diffusion range of the debris, ensure the working environment for drilling the reactor shell, and prevent the debris from entering the machine tool.

[0037] like Figures 2 to 7As shown, the collection mechanism includes a housing 3, a housing 2, a separator 22, and a liquid inlet assembly. Both housing 3 and housing 2 are cylindrical, with the side facing the workpiece as the front side, and housing 2 located in front of housing 3. The side facing the axial direction of housing 3 and housing 2 is the inner side. Housing 3 and housing 2 are coaxially arranged, and housing 3 is slidably sleeved on the outside of housing 2. The separator 22 is annular, fixed inside housing 2, and coaxially arranged with housing 2. The separator 22 has an annular cavity, and multiple movable parts 23 are slidably arranged inside the annular cavity. Each movable part 23 is fan-shaped. The separator 22 is provided with multiple limiting grooves 221. Each limiting groove 221 is evenly spaced along the circumference of the separator 22 and is located in the radial direction of the separator 22. Each movable part 23 is provided with a guide part 232. Each movable part 23 slides in conjunction with each limiting groove 221 through the guide part 232. Each movable part 23 slides synchronously along the radial direction of the separator 22. When each movable part 23 moves to the innermost side, any two adjacent movable parts 23 are in contact with each other. The diameter of the circular hole formed by each movable part 23 on its inner side matches the diameter of the drill bit 13 rod body. That is, the inner side of each movable part 23 is in contact with the drill bit 13 rod body.

[0038] The housing 2 has an adjusting member 24 inside. The adjusting member 24 is used to synchronously adjust the sliding of each movable member 23 relative to the partition member 22, thereby changing the size of the space formed inside each movable member 23. The adjusting member 24 is annular and fits against the rear end face of the partition member 22. The adjusting member 24 can be rotatably connected to the housing 2 via a torsion spring. A spiral guide groove 242 is provided on the outer wall of the adjusting member 24. Figure 6 and Figure 7 The adjusting member 24 is provided with multiple adjusting grooves 241 evenly spaced around the circumference. Each adjusting groove 241 is radially offset relative to the adjusting member 24. The guide part 232 of each movable member 23 slides and engages with each adjusting groove 241 one by one. That is, the guide part 232 of a movable member 23 is simultaneously inserted into the adjusting groove 241 and the limiting groove 221.

[0039] The side wall of the housing 2 has a cavity 212. The liquid inlet assembly includes a moving part 21 and a liquid inlet channel. The moving part 21 moves in the cavity in a direction parallel to the axial direction of the housing 2. The moving part 21 is slidably engaged with the cavity 212. The side wall of the housing 2 for fitting with the adjusting part 24 has a sliding groove. The moving part 21 has a guide block. The guide block passes through the sliding groove and is slidably engaged with the guide groove 242. When the moving part 21 slides relative to the housing 2, the adjusting part 24 rotates under the sliding engagement of the guide block and the guide groove 242. Furthermore, through the engagement of the adjusting groove 241 and the limiting groove 221, the moving parts 23 slide relative to the separating part 22, changing the size of the space inside each moving part 23.

[0040] The liquid inlet channel is connected to cavity 212. The liquid inlet channel is also provided with a water inlet 31. Coolant enters the liquid inlet channel from the water inlet 31. The moving part 21 is elastically connected to cavity 212. The moving part 21 is provided with a notch 211. The side wall of the housing 2 that is in contact with the moving part 21 is provided with a liquid inlet. The liquid inlet and the notch 211 are movably opposite each other. The moving part 21 can be connected to cavity 212 by an elastic element such as a spring or elastic telescopic rod. When the moving part 21 is not squeezed, under the elastic force of the elastic element, the front end of the moving part 21 is located on the front side of the housing 22, and the notch 211 is misaligned with the liquid inlet. Coolant enters cavity 212 through the liquid inlet channel, but does not enter the housing 22.

[0041] During drilling, the feed mechanism 11 drives the drill bit 13 to gradually approach the workpiece. The moving part 21 first contacts the workpiece and, under the pressure, gradually slides backward within the cavity 212. The guide block moves backward synchronously with the moving part 21 and pushes the adjusting part 24 to rotate through the guide groove 242, further causing each moving part 23 to slide outward relative to the partition 22, thus connecting the spaces on both sides of the partition 22. When the moving part 21 moves to the point where its front end is flush with the front end of the housing 2, the front end of the housing 2 is in contact with the workpiece, and the notch 211 is opposite to the liquid inlet, allowing coolant to pass through. Cavity 212 enters housing 2 and flows from back to front through partition 22 within housing 2. Because the front end of housing 2 is in contact with the workpiece and is in a relatively closed state, the cavities on both sides of partition 22 are gradually filled with coolant. Then, feed mechanism 11 drives drill bit 13 to rotate forward to drill the workpiece. Because housing 2 covers the outside of drill bit 13 and is in full contact with the workpiece, it can effectively prevent the debris generated during drilling from scattering. At the same time, the coolant filled in housing 2 is in full contact with the workpiece's machining surface and drill bit 13, which can also achieve a good cooling effect.

[0042] Combination Figure 8The movable part 23 is provided with a liquid inlet hole 231. The liquid inlet end of the liquid inlet hole 231 is located on the rear side of the movable part 23, and the liquid outlet end of the liquid inlet hole 231 is located on the inner end face of the movable part 23. The liquid inlet hole 231 is inclined from back to front and inward. The length of the slide groove is greater than the width of the adjusting part 24, and the stroke of the guide block relative to the housing 2 is consistent with the length of the slide groove. During the process of the movable part 21 being squeezed into the housing 2, the guide block drives the adjusting part 24 to rotate and then moves past the adjusting part 24 to the rear side of the adjusting part 24. After the guide block separates from the adjusting block, the adjusting part 24 is reset under the action of the torsion spring. Each movable part 23 moves outward and then inward. The size of the inner space of each movable part 23 first increases and then decreases to reset. As the movement changes and the inner space of the movable part 23 increases, a large amount of coolant quickly passes through and flows to the front of the partition 22. After the movable part 23 is reset, because the drill bit 13 has a spiral groove on its shaft, there is a gap between the drill bit 13 shaft and the inner wall of each movable part 23. The coolant behind the partition 22 can still flow to the front of the partition 22 through the inlet hole 231 on each movable part 23. The forward-flowing coolant can also block the debris from moving backward. The housing 1 3 and housing 2 2 are elastically connected. As the drill bit 13 penetrates the workpiece to a greater depth, the housing 1 3 and housing 2 2 slide relative to each other. The space of housing 2 2 located behind the partition 22 is squeezed, further promoting the movement of coolant to the front of the partition plate.

[0043] To facilitate the guide block's engagement with the guide groove 242 after the movable part 21 returns to its initial position, the guide block is elastically connected to the movable part 21. The front end face of the guide block is arc-shaped, and the rear end face of the guide block is straight. This allows the arc-shaped surface of the guide block to press against the partition 22 after it passes over the partition 22 and then slide along the axial direction of the housing 2. After the movable part 21 is fully reset, the guide block re-enters the front end of the guide groove 242. When the guide block moves from back to front, it does not slide along the guide groove 242 and will not push the adjusting part 24 to rotate.

[0044] When the feed mechanism 11 drives the drill bit 13 to rotate, it agitates the coolant. Most of the debris rotates along the inner wall of the housing 2 under the action of centrifugal force. In order to collect and process the debris in a timely manner and avoid excessive debris remaining in the housing and affecting the normal operation of the drill bit 13, a collection chamber 27 is also provided in the side wall of the housing 2. The collection chamber 27 is relatively independent from the cavity 212. A collection port communicating with the collection chamber 27 is provided on the inner wall of the housing 2. The collection port is located in front of the separator 22. A baffle adjacent to the collection port is also provided on the inner side of the housing 2. The baffle is set radially inclined relative to the housing 2. The baffle is a filter plate. During the rotation of the coolant with the drill bit 13, the debris is blocked by the baffle and enters the collection chamber 27 from the collection port with the coolant. The collection chamber 27 can be provided with an outlet. After the coolant and debris are discharged through the outlet of the collection chamber 27, they are further collected and processed. The coolant containing debris can be reused after the debris is separated.

[0045] like Figure 5 and Figure 9 As shown, the collection mechanism also includes a cleaning assembly, which includes a rotating component and a cleaning component 26. The rotating component includes a cylindrical rotating part 25 and an annular connecting part 251. An annular cavity is provided in the thickness direction of the housing 2. An annular groove is provided on the inner side wall of the cavity. The rotating part 25 is located in the cavity and is rotatably connected to the housing 2 via a torsion spring. The connecting part 251 is slidably engaged with the annular groove. The cleaning component 26 is L-shaped and is in contact with the front end face of the separator 22 and the inner wall of the housing 2. A spiral groove is provided on the outer side wall of the rotating part 25. A cavity is formed inside the housing 3. A connecting rod 32 is provided in the cavity. A slider is elastically connected to the connecting rod 32. The slider is movably opposite to and slidably engaged with the spiral groove. The front end face of the slider is straight and the rear end face of the slider is arc-shaped.

[0046] When housing 3 and housing 2 slide relative to each other until the slider contacts the spiral groove, the rotating part 25 rotates relative to housing 3 under the cooperation of the slider and the spiral groove, and the torsion spring stores force. The connecting part 251 rotates synchronously with the rotating part 25, and the cleaning part 26 rotates with the connecting part 251. When the cleaning part 26 rotates, it simultaneously comes into contact with the front end face of the separator 22 and the inner wall of housing 2, which facilitates further pushing of debris into the collection port. When the slider slides in cooperation with the spiral groove, it pushes the rotating part 25 to rotate one revolution. After that, the slider passes over the rotating part 25 and is in front of the rotating part 25. The rotating part 25 resets under the action of the torsion spring and drives the cleaning part 26 to reset through the connecting part 251. Because the rear end face of the slider is arc-shaped, during the reset process of housing 3 and housing 2, the rear end face of the slider contacts the rotating part 25 and is squeezed. The slider does not cooperate with the spiral groove. The slider only pushes the rotating part 25 to rotate during the forward movement relative to the rotating part 25.

[0047] After the workpiece drilling is completed, the feed mechanism 11 drives the drill bit 13 to gradually move away from the workpiece. Since some debris may remain in the spiral groove on the drill bit 13, a movable part 23 has a slot. A cleaning block is elastically connected in the slot. The cleaning block is used to slide with the groove on the drill bit 13. The cleaning block can be spherical. During the process of the drill bit 13 separating from the workpiece, the housing 2 moves forward under the elastic action. After the feed mechanism 11 stops driving the drill bit 13 to rotate, the drill bit 13 will still rotate for a period of time under the action of inertia. The cleaning block slides along the groove on the drill bit 13 and cleans the debris remaining in the groove. The coolant on the rear side of the separator 22 will also flush the rod through the inlet hole 231 to achieve a thorough cleaning of the debris remaining on the drill bit 13 and reduce the impact on the subsequent drilling operation of the drill bit 13.

[0048] The drilling device for reactor shells provided by the present invention forms a relatively closed space around the drilling position of the workpiece through a collection mechanism, so as to collect the generated debris in a timely manner while cooling the drill bit, reduce the diffusion of debris, reduce the impact of debris on the drilling equipment and workpiece, and improve the drilling quality of the workpiece.

[0049] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0050] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0051] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A drilling device for a reactor shell, comprising a body, a drill bit and a feeding mechanism mounted on the body, the drill bit being connected to the feeding mechanism via a connector, the feeding mechanism driving the drill bit to drill a hole in the workpiece, characterized in that, The machine body is also equipped with a collection mechanism, which includes a housing 1, a housing 2, a separator and a liquid inlet assembly. Both housing 1 and housing 2 are cylindrical, with the side facing the workpiece as the front side. Housing 2 is located in front of housing 1 and is slidably sleeved with housing 1. Housing 1 and housing 2 are elastically connected. The separator is annular and is coaxially arranged inside housing 2. The inner side of the separator is provided with multiple movable parts that slide radially relative to the separator. When each movable part moves inward to its limit position, it forms a space that matches the diameter of the drill bit rod. The liquid inlet assembly includes a movable part and a liquid inlet channel. A cavity is provided in the side wall of the housing second. The movable part is slidably engaged with the cavity first. The liquid inlet channel is connected to the cavity first. The movable part is elastically connected to the cavity first. A notch is provided on the movable part. A liquid inlet is provided on the side wall of the housing second that is in contact with the movable part. The liquid inlet and the notch are movably opposite to each other. The housing is also equipped with an adjusting component, which is used to synchronously adjust the sliding of each moving part relative to the partition to change the size of the space formed inside each moving part; The second housing has a collection cavity inside its side wall, and a collection port communicating with the collection cavity is provided on the inner wall of the second housing. The collection port is located on the front side of the separator. The inner side of the second housing also has a baffle adjacent to the collection port, and the baffle is set radially inclined relative to the second housing. The collection mechanism also includes a cleaning assembly, which includes a rotating part and a cleaning part. The rotating part includes a cylindrical rotating part and an annular connecting part. The second housing has an annular cavity in its thickness direction. The inner side wall of the cavity has an annular groove. The rotating part is located in the cavity and is rotatably connected to the second housing through a torsion spring. The connecting part is slidably engaged with the annular groove. The cleaning part is "L" shaped and is in contact with the front end face of the separator and the inner wall of the second housing. The outer side wall of the rotating part has a spiral groove. The first housing forms a cavity inside, and a connecting rod is provided in the cavity. A slider is elastically connected to the connecting rod. The slider is movably opposite to and slidably engaged with the spiral groove.

2. The drilling device for the reactor shell according to claim 1, characterized in that, The adjusting component is annular, and its outer wall is rotatably connected to the housing 2 via a torsion spring. The outer wall of the adjusting component is provided with a spiral guide groove. The adjusting component is provided with multiple radial deviation adjusting grooves evenly distributed around its circumference. Each movable component slides into each adjusting groove. The separator is provided with multiple limiting grooves, each limiting groove is arranged radially along the separator, and each movable component slides into each limiting groove. The housing 2 has a sliding groove on its side wall for fitting the adjusting component, and a guide block is provided on the movable component. The guide block slides into both the sliding groove and the guide groove.

3. The drilling device for the reactor shell according to claim 2, characterized in that, The front end face of the guide block is arc-shaped, and the rear end face of the guide block is straight.

4. The drilling device for the reactor shell according to claim 1, characterized in that, The front end face of the slider is straight, and the rear end face of the slider is curved.

5. The drilling device for the reactor shell according to claim 1, characterized in that, The baffle is a filter screen.

6. The drilling device for the reactor shell according to claim 1, characterized in that, Each moving part is fan-shaped and has a liquid inlet hole. The liquid inlet end of the liquid inlet hole is located on the rear side of the moving part, and the liquid outlet end of the liquid inlet hole is located on the inner end face of the moving part. The liquid inlet hole is inclined from back to front and inward.

7. The drilling device for the reactor shell according to claim 1, characterized in that, A slot is provided on any of the moving parts, and a cleaning block is elastically connected in the slot. The cleaning block is used to slide with the slot on the drill bit body.

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