A cylinder hole opening device for pressure-bearing special equipment and its use method

Abstract

The present invention provides a device for opening a hole in a cylinder of a pressure-bearing special equipment and a method for using the device, and relates to the technical field of hole-opening devices. The device for opening a hole in a cylinder of a pressure-bearing special equipment and a method for using the device comprise a fixed cylinder, wherein a rotating cylinder is rotatably connected to the interior of the fixed cylinder, a threaded sleeve is slidably connected to the interior of the rotating cylinder, a movable cylinder is slidably connected to the exterior of the limiting cylinder, a plurality of inner support plates are distributed in an annular array on the exterior of the movable cylinder, a plurality of inner support plates are provided with a support assembly on the front side, a plurality of table plates are distributed in an annular array on the exterior of the fourth support plate and the sliding sleeve, and a plurality of rear support wheels are rotatably connected to the interior of the plurality of table plates. The device for opening a hole in a cylinder of a pressure-bearing special equipment and a method for using the device facilitate movement of the device inside the cylinder, while improving the stability of movement of the device, so that the support structure outside the limiting cylinder supports the inner wall of the cylinder workpiece, thereby keeping the cylinder and the tooling concentric, and facilitating processing operations.

Description

Technical Field

[0001] The present invention relates to a hole-opening device, in particular to a hole-opening device for a cylinder of pressure-bearing special equipment and a use method thereof, belonging to the technical field of hole-opening devices. Background Art

[0002] The cylinder of special pressure equipment plays an important role in the transportation of liquefied gas, steam or flammable, explosive, toxic, corrosive liquids with a maximum operating temperature higher than or equal to the standard boiling point. After production, it is drilled and other operations are performed on it as needed.

[0003] At present, some operations of drilling holes in cylinders are still done manually, especially when drilling holes on the inner wall of the cylinder. Since the cylinder is cylindrical, manual drilling cannot stably fix the cylinder, resulting in the accuracy of the hole being unable to be guaranteed. Moreover, when the drilling equipment enters the inner wall of the cylinder to drill holes, since the equipment and the cylinder are fixed separately, it is very inconvenient to move the equipment inside the cylinder and manual adjustment is required. However, the weight of the equipment makes the adjustment process cumbersome and consumes the operator's physical strength. Summary of the Invention

[0004] Technical problems solved

[0005] The purpose of the present invention is to provide a pressure-bearing special equipment cylinder hole opening device and a method of use in order to solve the above problems, so as to solve the problem in the prior art that when the drilling equipment enters the inner wall of the cylinder to drill a hole, the equipment and the cylinder are fixed separately, which makes the movement of the equipment inside the cylinder very inconvenient and requires manual adjustment. However, due to the weight of the equipment, the adjustment process is cumbersome and consumes the operator's physical strength.

[0006] Technical Solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a device for opening a hole in a cylinder of a pressure-bearing special equipment and a method for using the same, comprising a fixed cylinder, the interior of the fixed cylinder being rotatably connected to a rotating cylinder, the interior of the rotating cylinder being slidably connected to a threaded sleeve, the interior of the rotating cylinder being integrally formed with a second limiting strip, both sides of the threaded sleeve being provided with a second limiting groove, the two second limiting strips being slidably connected to the interiors of the two second limiting grooves and being slidably connected to the two second limiting grooves, the front end of the fixed cylinder being fixedly connected to an internal threaded ring, the threaded sleeve passing through the internal threaded ring and being threadedly connected to the internal threaded ring, the front end of the threaded sleeve being rotatably connected to a connecting ring, the front side of the connecting ring being fixedly connected to the limiting cylinder, the interior of the threaded sleeve being rotatably connected to a rotating rod, The outer side of the fourth support plate and the outer side of the sliding sleeve are slidably connected to the fourth support plate, and the outer side of the fourth support plate and the sliding sleeve are slidably connected to the plurality of platforms, and the plurality of platform plates are rotatably connected to the plurality of rear support wheels.

[0008] Preferably, the supporting assembly includes two tooth plates and two support plates, both sides of the bottom of the inner support plate are fixedly connected to the limiting frame, the limiting frame is slidably connected with a rotating shaft, both ends of the rotating shaft are fixedly connected with a guide gear, and both sides of the inner support plate are fixedly connected with a rack, and the two guide gears are respectively meshed and connected to the bottom of the two racks. When the rotating shaft slides inside the limiting frame, the rack limits the guide gear, thereby driving the guide gear to rotate.

[0009] Preferably, both sides of the rotating shaft are rotatably connected with connecting plates, one side of the two connecting plates is fixedly connected to a limiting sleeve, the two limiting sleeves are slidably connected to the inside of the two limiting frames, the two tooth plates are slidably connected to the inside of the two limiting sleeves, the two support plates are fixedly connected to the top of the two third limiting bars, and both ends of the two support plates are rotatably connected to the front support wheels, so that the rotating shaft drives the guide gear to rotate, so that the guide gear reaches the tooth plate to move, and the tooth plate pushes the support plate upward.

[0010] Preferably, one side of the two tooth plates is fixedly connected with a third limit bar, the two third limit bars are respectively slidably connected to the inside of the two limit sleeves and adapted to the two limit sleeves, a bottom support plate is fixedly connected between the bottoms of the two tooth plates, a plurality of limit springs are fixedly connected to the top of the bottom support plate, a connecting slider is fixedly connected between the two connecting plates, the connecting slider passes through the limit frame and is slidably connected to the limit frame, the tops of the plurality of limit springs are fixedly connected to the connecting slider, and the bottom support plate and the tooth plate are supported and buffered by the plurality of limit springs.

[0011] Preferably, a plurality of second support plates are fixedly connected to the outer side of the connecting ring in an annular array, and a second hinged plate is hinged to the outer side of each of the second support plates. A plurality of first support plates are fixedly connected to the outer side of the movable cylinder in an annular array, and a first hinged plate is hinged to the outer side of each of the first support plates. The middle sections of the first hinged plate and the second hinged plate are hinged to each other, and the rotating shaft is rotatably connected to the inside of the top end of the second hinged plate. A first connecting block is fixedly connected to one side of the bottom of the inner support plate, and the top end of the first hinged plate is hinged to the first connecting block.

[0012] Preferably, a threaded cylinder is provided inside the limiting cylinder, and a plurality of guide plates are fixedly connected between the threaded cylinder and the movable cylinder. A plurality of through grooves are provided on the outer wall of the limiting cylinder, and the plurality of guide plates respectively pass through the plurality of through grooves and are slidably connected to the plurality of through grooves. The threaded rod passes through the threaded cylinder and is threadedly connected to the threaded cylinder. Two first limit bars are formed inside the rotating rod, and first limit grooves are provided on both sides of the threaded rod. The two first limit bars are respectively slidably connected to the inside of the two first limit grooves and adapted to the two first limit grooves. The threaded rod is rotated to drive the threaded rod to rotate, and the threaded rod drives the threaded cylinder and the movable cylinder to move.

[0013] Preferably, the outer side of the fourth support plate is fixedly connected to a plurality of fixed sleeves, and the interior of the plurality of fixed sleeves is hingedly provided with a first jacking rod, and the outer side of the sliding sleeve is fixedly connected to a plurality of third support plates in a circular array, and one side of the plurality of third support plates is hingedly provided with a second jacking rod, and the plurality of first jacking rods are respectively hinged to the middle section of the second jacking rod, and the bottom side of the table plate is fixedly connected to a second connecting block, and the top end of the first jacking rod is hinged to the second connecting block, and the bottom of the table plate is fixedly connected to a slide rail, and the top end of the second jacking rod is fixedly connected to a connecting rod, and the connecting rod passes through the slide rail and is slidably connected to the slide rail, and supports the slide rail through the connecting rod.

[0014] Preferably, multiple horizontal plates are fixedly connected between the multiple second support plates and the multiple third support plates, a drilling rig is fixedly connected to the outer side of one of the horizontal plates, a drill bit is fixedly connected to the output end of the drilling rig, and an observation camera is fixedly connected to one side of the drilling rig. The drilling position on the inner wall of the cylinder is observed through the observation camera, and the drilling rig is started to drive the drill bit to drill holes in the cylinder.

[0015] Preferably, a mounting sleeve is fixedly connected to the outer side of the rear end of the fixed cylinder, a first motor is fixedly connected to the bottom of the mounting sleeve, and a first transmission gear is fixedly connected to the output end of the first motor and the outer side of the rear end of the rotating rod. The two first transmission gears are meshed and connected, and the first transmission gear is driven to rotate by starting the first motor to drive the rotating rod to rotate.

[0016] Preferably, a second motor is fixedly connected to the top of the mounting sleeve, and a second transmission gear is fixedly connected to the output end of the second motor and the outer side of the rear end of the rotating cylinder. The two second transmission gears are meshed and connected, and the second motor is started to drive the second transmission gear to rotate, so that the second transmission gear drives the rotating cylinder to rotate.

[0017] A method for using a cylinder hole opening device for pressure-bearing special equipment specifically comprises the following steps:

[0018] Step 1: When drilling a hole inside the cylinder, place the device inside the cylinder, start the second motor in the positive direction to drive the second transmission gear to rotate in the positive direction, and drive the rotating cylinder to rotate, so that the rotating cylinder drives the second limit bar to rotate when rotating, and thereby the second limit bar limits the second limit groove, drives the threaded sleeve to rotate, and limits and guides the threaded sleeve through the internal threaded ring, so that the threaded sleeve moves backward inside the internal threaded ring when rotating, so that the threaded sleeve drives the connecting ring and the limiting cylinder to move synchronously, and when the connecting ring moves, it drives multiple second support plates to move, thereby driving multiple cross plates to move, so that the multiple cross plates drive multiple third support plates to move, and so that the multiple third support plates drive the sliding sleeve to move, The cam is moved along the first support rail and the second support rail is moved along the second support rail, thereby the cam is moved along the first support rail and the second support rail is moved along the second support rail.

[0019] When the first and second hinge plates are moved, the first hinge plate and the second hinge plate are rotated relative to each other, thereby driving the inner support plate and the support pad to move when the first hinge plate and the second hinge plate are deflected. At the same time, the second hinge plate drives the rotating shaft to move inside the limit frame, thereby driving the inner support plate and the support pad to retract inwardly, thereby causing the multiple support pads to retract inwardly, facilitating the movement of the device;

[0020] Step three: when the first motor is started in reverse, it drives the first transmission gear to rotate, and when the first transmission gear rotates, it drives the rotating rod to rotate in the opposite direction, and when the rotating rod rotates, it drives the first limit bar and the threaded rod to rotate, so that when the threaded rod rotates, it drives the threaded cylinder to move, and the threaded cylinder drives the guide plate and the movable cylinder to move, and the movable cylinder drives multiple first support plates to move, and the multiple first support plates drive the first hinge plate to move, so that the first hinge plate and the second hinge plate rotate relative to each other, driving multiple inner support plates and multiple support pads to open outward, fit with the inner wall of the cylinder, support the device, improve the stability of the device, and facilitate the drilling rig to drive the drill bit to drill the inner wall of the cylinder, and at the same time facilitate the adjustment of the drilling position on the inner wall of the cylinder, which is convenient for movement and drilling.

[0021] The present invention provides a device for opening a hole in a cylinder of pressure-bearing special equipment and a method for using the device, which has the following beneficial effects:

[0022] The device and method for opening a hole in a cylinder of pressure-bearing special equipment enable the top end of a second lifting rod to drive a connecting rod to slide inside a slide rail, thereby driving multiple platform plates to expand outward, thereby driving multiple rear support wheels to open outward, so that the multiple rear support wheels support the inner wall of the cylinder, so that the multiple rear support wheels and the inner wall of the cylinder have rolling friction, thereby reducing friction, facilitating the movement of the device inside the cylinder, and improving the stability of the device movement, so that the device can be easily moved to the drilling position inside the cylinder;

[0023] The cylinder hole opening device and use method of the pressure-bearing special equipment enables the limiting sleeve to drive the tooth plate to move, thereby causing the tooth plate and the guide gear to move synchronously. When the guide gear rotates, the tooth plate is driven to rise. When the tooth plate rises, it drives the support plate to rise, and the support plate drives multiple front support wheels to rise, so that the multiple front support wheels are in contact with the inner wall of the cylinder at the same time, supporting the front end of the device, thereby improving the front and rear stability of the device.

[0024] The device and method for opening a hole in a cylinder of pressure-bearing special equipment are characterized in that multiple first support plates drive the first hinge plate to move, so that the first hinge plate and the second hinge plate rotate relative to each other, driving multiple inner support plates and multiple support pads to open outward and fit with the inner wall of the cylinder to support the device, thereby improving the stability of the device and facilitating the drilling rig to drive the drill bit to drill holes in the inner wall of the cylinder. At the same time, it is convenient to adjust the drilling position on the inner wall of the cylinder, which is convenient for movement and drilling. The supporting structure on the outside of the fixed cylinder can also be connected to the cylindrical tooling, so that the multiple rear support wheels are in contact with the cylindrical tooling for support, and the supporting structure on the outside of the limit cylinder supports the inner wall of the cylinder workpiece, thereby keeping the cylinder and the tooling concentric, which is convenient for processing operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a structural schematic diagram of the limiting cylinder of the present invention;

[0027] Figure 3 is a side view of the present invention;

[0028] Figure 4 It is a structural schematic diagram of the movable cylinder of the present invention;

[0029] Figure 5 Schematic diagram of the structure of the third support plate of the present invention;

[0030] Figure 6 It is a structural schematic diagram of the table plate of the present invention;

[0031] Figure 7 It is a structural schematic diagram of the internal thread ring of the present invention;

[0032] Figure 8 It is a structural schematic diagram of the limiting cylinder of the present invention;

[0033] Figure 9 It is a structural schematic diagram of the threaded rod of the present invention;

[0034] Figure 10 Schematic diagram of the structure of the first support plate of the present invention;

[0035] Figure 11 This is a schematic structural diagram of the front support wheel of the present invention;

[0036] Figure 12 It is a structural schematic diagram of the threaded barrel of the present invention;

[0037] Figure 13 It is a structural schematic diagram of the threaded sleeve of the present invention;

[0038] Figure 14 Schematic diagram of the structure of the first limiting strip of the present invention.

[0039] In the figure: 1, fixed cylinder; 2, rotating cylinder; 3, threaded sleeve; 4, internal threaded ring; 5, connecting ring; 6, limiting cylinder; 7, rotating rod; 8, threaded rod; 9, first limiting strip; 10, first limiting groove; 11, second limiting groove; 12, second limiting strip; 13, moving cylinder; 14, first supporting plate; 15, first hinge plate; 16, second supporting plate; 17, second hinge plate; 18, first connecting block; 19, rotating shaft; 20, inner supporting plate; 21, limiting frame; 22, rack; 23, guide gear; 24, connecting plate; 25, limiting sleeve; 26, tooth plate; 27, third limiting strip; 28, support plate; 29, Front support wheel; 30. Bottom support plate; 31. Limit spring; 32. Support pad; 33. Sliding sleeve; 34. Third support plate; 35. Cross plate; 36. Fourth support plate; 37. Fixed sleeve; 38. First lifting rod; 39. Second lifting rod; 40. Slide rail; 41. Table; 42. Rear support wheel; 43. Second connecting block; 44. Front stopper; 45. Drilling rig; 46. Drill bit; 47. Observation camera; 48. Mounting sleeve; 49. First motor; 50. First transmission gear; 51. Second motor; 52. Second transmission gear; 53. Connecting rod; 54. Connecting slider; 55. Threaded barrel; 56. Guide plate. DETAILED DESCRIPTION

[0040] The embodiment of the present invention provides a cylinder hole opening device for pressure-bearing special equipment and a method for using the device.

[0041] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 、 Figure 12 、 Figure 13 and Figure 14, including a fixed cylinder 1, the fixed cylinder 1 is rotatably connected to the rotating cylinder 2, the rotating cylinder 2 is slidably connected to the threaded sleeve 3, the rotating cylinder 2 is internally formed with a second limiting strip 12 on both sides of the interior, and the threaded sleeve 3 is provided with a second limiting groove 11 on both sides. The two second limiting strips 12 are respectively slidably connected to the two second limiting grooves 11 and are slidably connected to the two second limiting grooves 11. The front end of the fixed cylinder 1 is fixedly connected to the internal threaded ring 4, the threaded sleeve 3 passes through the internal threaded ring 4 and is threadedly connected to the internal threaded ring 4, the front end of the threaded sleeve 3 is rotatably connected to the connecting ring 5, and the front side of the connecting ring 5 is fixedly connected to the limiting cylinder 6, the threaded sleeve 3 is rotatably connected to the rotating rod 7, the rotating rod 7 passes through the rear end of the rotating cylinder 2 and is rotatably connected to the rotating cylinder 2, the rotating rod 7 is slidably connected to the threaded rod 8, the rotating rod 7 passes through the threaded sleeve 3 and is movably connected to the threaded sleeve 3, the threaded rod 8 passes through the limiting cylinder 6 and is rotatably connected to the limiting cylinder 6 Next, the front end of the limiting cylinder 6 is fixedly connected to a front stopper 44, and the outer side of the limiting cylinder 6 is slidably connected to the moving cylinder 13. A plurality of inner support plates 20 are distributed in a circular array on the outer side of the moving cylinder 13, and a support assembly is provided on the front side of the plurality of inner support plates 20. The outer sides of the plurality of inner support plates 20 are fixedly connected to support pads 32. The outer side of the rear end of the fixed cylinder 1 is fixedly connected to a fourth support plate 36, and the outer side of the front end of the fixed cylinder 1 is slidably connected to a sliding sleeve 33. A plurality of platform plates 41 are distributed in a circular array on the outer sides of the fourth support plate 36 and the sliding sleeve 33. A plurality of rear support wheels 42 are rotatably connected to the interiors of the plurality of platform plates 41. A second motor 51 is fixedly connected to the top of the mounting sleeve 48. The output end of the second motor 51 and the outer side of the rear end of the rotating cylinder 2 are fixedly connected to a second transmission gear 52. The two second transmission gears 52 are meshed and connected. The second transmission gear 52 is driven to rotate by the second motor 51, so that the second transmission gear 52 drives the rotating cylinder 2 to rotate.

[0042] The supporting assembly includes two tooth plates 26 and two support plates 28. Both sides of the bottom of the inner support plate 20 are fixedly connected to the limit frame 21. The limit frame 21 is slidably connected to the rotating shaft 19. Both ends of the rotating shaft 19 are fixedly connected to the guide gear 23. The inner support plate 20 is fixedly connected to the rack 22 on both sides. The two guide gears 23 are respectively meshed and connected to the bottom of the two racks 22. When the rotating shaft 19 slides inside the limit frame 21, the rack 22 limits the guide gear 23, thereby driving the guide gear 23 to rotate. Both sides of the rotating shaft 19 are rotatably connected to the connecting plates 24. One side of the two connecting plates 24 is fixedly connected to the limit sleeve 25. The two limit sleeves 25 are respectively slidably connected to the inside of the two limit frames 21, and the two tooth plates 26 are respectively slidably connected to the two limit sleeves 25, the two support plates 28 are respectively fixedly connected to the top of the two third limit bars 27, and the two ends of the two support plates 28 are rotatably connected to the front support wheels 29, so that the rotating shaft 19 drives the guide gear 23 to rotate, so that the guide gear 23 reaches the tooth plate 26 to move, and the tooth plate 26 pushes the support plate 28 upward, and one side of the two tooth plates 26 is fixedly connected to the third limit bar 27, and the two third limit bars 27 are respectively slidably connected to the inside of the two limit sleeves 25 and adapted to the two limit sleeves 25. A bottom support plate 30 is fixedly connected between the bottoms of the two tooth plates 26, and a plurality of limit springs 31 are fixedly connected to the top of the bottom support plate 30. A connecting slider 54 is fixedly connected between the two connecting plates 24, and the connecting slider 54 passes through the limit frame 21 and is slidably connected to the limit frame 21. The tops of the limit springs 31 are fixedly connected to the connecting sliders 54, and the bottom support plate 30 and the tooth plate 26 are supported and buffered by the multiple limit springs 31. The outer side of the connecting ring 5 is fixedly connected to a plurality of second support plates 16 in an annular array, and the outer sides of the multiple second support plates 16 are hinged with second hinged plates 17. The outer side of the moving cylinder 13 is fixedly connected to a plurality of first support plates 14 in an annular array, and the outer sides of the multiple first support plates 14 are hinged with first hinged plates 15. The middle sections of the first hinged plates 15 and the second hinged plates 17 are hinged to each other, and the rotating shaft 19 is rotatably connected to the inside of the top of the second hinged plate 17. The bottom side of the inner support plate 20 is fixedly connected to the first connecting block 18, and the top of the first hinged plate 15 is hinged to the first connecting block 18. A threaded cylinder 5 is provided inside the limit cylinder 6. 5. A plurality of guide plates 56 are fixedly connected between the threaded cylinder 55 and the movable cylinder 13. A plurality of through grooves are provided on the outer wall of the limiting cylinder 6. The plurality of guide plates 56 respectively penetrate the plurality of through grooves and are slidably connected to the plurality of through grooves. The threaded rod 8 penetrates the threaded cylinder 55 and is threadedly connected to the threaded cylinder 55. Two first limiting strips 9 are formed inside the rotating rod 7. First limiting grooves 10 are provided on both sides of the threaded rod 8. The two first limiting strips 9 are respectively slidably connected to the inside of the two first limiting grooves 10 and are adapted to the two first limiting grooves 10. The threaded rod 8 is rotated by rotating the rotating rod 7, and the threaded rod 8 drives the threaded cylinder 55 and the movable cylinder 13 to move. The outer side of the rear end of the fixed cylinder 1 is fixedly connected to the mounting sleeve 48, and the bottom of the mounting sleeve 48 is fixedly connected to the first motor 49.The output end of the first motor 49 and the outer side of the rear end of the rotating rod 7 are both fixedly connected to the first transmission gear 50. The two first transmission gears 50 are meshed and connected. When the first motor 49 is started, the first transmission gear 50 is driven to rotate, which in turn drives the rotating rod 7 to rotate.

[0043] The outer side of the fourth support plate 36 is fixedly connected to a plurality of fixed sleeves 37, and the interior of the plurality of fixed sleeves 37 is hinged with a first lifting rod 38. The outer side of the sliding sleeve 33 is fixedly connected to a plurality of third support plates 34 in an annular array. One side of the plurality of third support plates 34 is hinged with a second lifting rod 39, and the plurality of first lifting rods 38 are respectively hinged with the middle section of the second lifting rod 39. A second connecting block 43 is fixedly connected to one side of the bottom of the table 41, and the top of the first lifting rod 38 is hinged with the second connecting block 43. The bottom of the table 41 is fixedly connected to the slide rail 40, and the second lifting rod 39 is hinged. A connecting rod 53 is fixedly connected to the top of the slide rail 40, and the connecting rod 53 passes through the slide rail 40 and is slidably connected to the slide rail 40. The slide rail 40 is supported by the connecting rod 53. A plurality of cross plates 35 are fixedly connected between the plurality of second support plates 16 and the plurality of third support plates 34. A drilling rig 45 is fixedly connected to the outer side of one of the cross plates 35. A drill bit 46 is fixedly connected to the output end of the drilling rig 45. An observation camera 47 is fixedly connected to one side of the drilling rig 45. The drilling position of the inner wall of the cylinder is observed through the observation camera 47, and the drilling rig 45 is started to drive the drill bit 46 to drill a hole in the cylinder.

[0044] Specifically, when drilling inside the cylinder, the device is placed inside the cylinder, and the second motor 51 is started in the positive direction to drive the second transmission gear 52 to rotate in the positive direction, and the rotating cylinder 2 is driven to rotate, so that the rotating cylinder 2 drives the second limiting bar 12 to rotate when rotating, and thereby the second limiting bar 12 limits the second limiting groove 11, driving the threaded sleeve 3 to rotate, and the threaded sleeve 3 is limited and guided by the internal threaded ring 4, so that the threaded sleeve 3 moves backward inside the internal threaded ring 4 when rotating, so that the threaded sleeve 3 drives the connecting ring 5 and the limiting cylinder 6 to move synchronously, and when the connecting ring 5 moves, it drives the multiple second support plates 16 to move, thereby driving the multiple cross plates 35 to move, so that the multiple cross plates 35 drive the multiple third support plates 34 to move, and the multiple third support plates 34 drive the sliding sleeve 33 to move. The second and first jacking rods 39 are moved to move the bottom ends of the second jacking rods 39, thereby moving the second jacking rods 39 and the bottom ends of the first jacking rods 38 away from each other. At the same time, the second jacking rods 39 and the first jacking rods 38 rotate with each other, so that the top ends of the second jacking rods 39 drive the connecting rods 53 to slide inside the slide rails 40, thereby driving the multiple platform plates 41 to expand outward, thereby driving the multiple rear support wheels 42 to open outward, so that the multiple rear support wheels 42 are supported by the inner wall of the cylinder, so that the multiple rear support wheels 42 and the inner wall of the cylinder are in rolling friction, reducing friction, making it easier for the device to move inside the cylinder, and at the same time improving the stability of the device movement, so that the device can be moved to the drilling position inside the cylinder.

[0045] The first motor 49 is started forward to drive the first transmission gear 50 to rotate forward, so that the rear first transmission gear 50 drives the rotating rod 7 to rotate. When the rotating rod 7 rotates, the first limit bar 9 limits the first limit groove 10, so that the first limit bar 9 drives the threaded rod 8 to rotate, so that when the threaded rod 8 rotates, the threaded cylinder 55 is driven to move. When the threaded cylinder 55 moves, it drives multiple guide plates 56 to move, so that when the multiple guide plates 56 move, the moving cylinder 13 moves. When the moving cylinder 13 moves, it drives multiple first support plates 14 to move. When the multiple first support plates 14 move, it drives the first hinge plate 15 to move, and the first hinge plate 15 and the second hinge plate 17 to rotate relative to each other, so that when the first hinge plate 15 and the second hinge plate 17 deflect, the inner support plate 20 and the support pad 32 are driven to move. At the same time, the second hinge plate 17 drives the rotating shaft 19 to move inside the limit frame 21, thereby driving the inner support plate 20 and the support pad 32. When the guide gear 23 moves, the rack 22 limits the guide gear 23, so that the guide gear 23 rotates while the shaft 19 moves. When the shaft 19 moves, it drives the connecting plate 24 to move, and the connecting plate 24 drives the limiting sleeve 25 to move, so that the limiting sleeve 25 drives the toothed plate 26 to move, and then the toothed plate 26 and the guide gear 23 move synchronously. When the guide gear 23 rotates, it drives the toothed plate 26 to rise. When the toothed plate 26 rises, it drives the support plate 28 to rise, so that the support plate 28 drives multiple front support wheels 29 to rise, so that multiple front support wheels 29 are in contact with the inner wall of the cylinder at the same time, supporting the front end of the device, thereby improving the front and rear stability of the device.

[0046] When the first motor 49 is started in reverse, the first transmission gear 50 is driven to rotate. When the first transmission gear 50 rotates, the rotating rod 7 is driven to rotate in the opposite direction. When the rotating rod 7 rotates, the first limiting bar 9 and the threaded rod 8 are driven to rotate. When the threaded rod 8 rotates, the threaded cylinder 55 is driven to move. The threaded cylinder 55 drives the guide plate 56 and the moving cylinder 13 to move. The moving cylinder 13 drives the multiple first support plates 14 to move. The multiple first support plates 14 drive the first hinge plate 15 to move. The first hinge plate 15 and the second hinge plate 17 rotate relative to each other, driving the multiple inner support plates 2 0 and multiple support pads 32 are opened outward and fit with the inner wall of the cylinder to support the device, improve the stability of the device, and facilitate the drilling rig 45 to drive the drill bit 46 to drill the inner wall of the cylinder. At the same time, it is convenient to adjust the drilling position on the inner wall of the cylinder, which is convenient for movement and drilling. The supporting structure on the outside of the fixed cylinder 1 can also be connected to the cylindrical tooling, so that the multiple rear support wheels 42 are in contact with the cylindrical tooling for support, and the supporting structure on the outside of the limit cylinder 6 supports the inner wall of the cylindrical workpiece, so that the cylinder and the tooling remain concentric, which is convenient for processing operations.

[0047] A method for using a cylinder hole opening device for pressure-bearing special equipment specifically comprises the following steps:

[0048] Step 1: When drilling a hole inside the cylinder, place the device inside the cylinder, start the second motor 51 in the positive direction to drive the second transmission gear 52 to rotate in the positive direction, and drive the rotating cylinder 2 to rotate, so that the rotating cylinder 2 drives the second limiting bar 12 to rotate when rotating, and thereby the second limiting bar 12 limits the second limiting groove 11, driving the threaded sleeve 3 to rotate, and the threaded sleeve 3 is limited and guided by the internal threaded ring 4, so that the threaded sleeve 3 moves backward inside the internal threaded ring 4 when rotating, so that the threaded sleeve 3 drives the connecting ring 5 and the limiting cylinder 6 to move synchronously, and when the connecting ring 5 moves, it drives the multiple second support plates 16 to move, thereby driving the multiple cross plates 35 to move, so that the multiple cross plates 35 drive the multiple third support plates 34 to move, and the multiple third support plates 34 drive the sliding sleeve 33 to move, The sliding sleeve 33 slides toward the front end on the outside of the fixed cylinder 1. When the sliding sleeve 33 moves, it drives the multiple third support plates 34 to move, so that the multiple third support plates 34 pull the multiple second lifting rods 39 bottom ends to move, so that the second lifting rods 39 and the bottom ends of the first lifting rods 38 are separated. At the same time, the second lifting rods 39 and the first lifting rods 38 rotate with each other, so that the top ends of the second lifting rods 39 drive the connecting rods 53 to slide inside the slide rails 40, thereby driving the multiple platform plates 41 to expand outward, thereby driving the multiple rear support wheels 42 to open outward, so that the multiple rear support wheels 42 are supported by the inner wall of the cylinder, so that the multiple rear support wheels 42 and the inner wall of the cylinder are in rolling friction, reducing friction, making it easier for the device to move inside the cylinder, and at the same time improving the stability of the device movement, making it easier for the device to move to the drilling position inside the cylinder;

[0049] Step 2: The first motor 49 is started forward to drive the first transmission gear 50 to rotate forward, so that the first transmission gear 50 drives the rotating rod 7 to rotate. When the rotating rod 7 rotates, the first limiting bar 9 limits the first limiting groove 10, so that the first limiting bar 9 drives the threaded rod 8 to rotate, so that when the threaded rod 8 rotates, the threaded barrel 55 is driven to move. When the threaded barrel 55 moves, it drives the multiple guide plates 56 to move, so that when the multiple guide plates 56 move, it drives the moving barrel 13 to move, and when the moving barrel 13 moves, it drives The plurality of first support plates 14 move, and when the plurality of first support plates 14 move, the first hinge plate 15 is driven to move, and the first hinge plate 15 and the second hinge plate 17 are caused to rotate relative to each other, so that when the first hinge plate 15 and the second hinge plate 17 deflect, the inner support plate 20 and the support pad 32 are driven to move. At the same time, the second hinge plate 17 drives the rotating shaft 19 to move inside the limiting frame 21, thereby driving the inner support plate 20 and the support pad 32 to retract inwardly, thereby causing the plurality of support pads 32 to retract inwardly, facilitating the movement of the device;

[0050] Step three: When the first motor 49 is started in reverse, it drives the first transmission gear 50 to rotate, and when the first transmission gear 50 rotates, it drives the rotating rod 7 to rotate in the opposite direction. When the rotating rod 7 rotates, it drives the first limit bar 9 and the threaded rod 8 to rotate, so that when the threaded rod 8 rotates, it drives the threaded cylinder 55 to move, so that the threaded cylinder 55 drives the guide plate 56 and the movable cylinder 13 to move, and the movable cylinder 13 drives multiple first support plates 14 to move, and multiple first support plates 14 drive the first hinge plate 15 to move, so that the first hinge plate 15 and the second hinge plate 17 rotate with each other, driving multiple inner support plates 20 and multiple support pads 32 to open outward, fit with the inner wall of the cylinder, support the device, improve the stability of the device, and facilitate the drilling rig 45 to drive the drill bit 46 to drill the inner wall of the cylinder, and at the same time facilitate the adjustment of the drilling position on the inner wall of the cylinder, which is convenient for movement and drilling.

[0051] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for opening a hole in a cylinder of a pressure-bearing special equipment, comprising a fixed cylinder (1), characterized in that: The fixed cylinder (1) is rotatably connected to the rotating cylinder (2), and the rotating cylinder (2) is slidably connected to the threaded sleeve (3). The rotating cylinder (2) is integrally formed with second limiting strips (12) on both sides thereof. The threaded sleeve (3) is provided with second limiting grooves (11) on both sides thereof. The two second limiting strips (12) are respectively slidably connected to the inside of the two second limiting grooves (11) and are slidably connected to the two second limiting grooves (11). The front end of the fixed cylinder (1) is fixedly connected to an internal threaded ring (4), and the threaded sleeve (3) passes through the internal threaded ring (4) and is threadedly connected to the internal threaded ring (4). The front end of the threaded sleeve (3) is rotatably connected to a connecting ring (5), and the front side of the connecting ring (5) is fixedly connected to the limiting cylinder (6). The threaded sleeve (3) is internally connected to a rotating rod (7), the rotating rod (7) passes through the rear end of the rotating cylinder (2) and is connected to the rotating cylinder (2) in rotation, the rotating rod (8) is internally connected to the rotating rod (7) in a sliding manner, the rotating rod (7) passes through the threaded sleeve (3) and is movably connected to the threaded sleeve (3), the threaded rod (8) passes through the limiting cylinder (6) and is connected to the limiting cylinder (6) in rotation, the front end of the limiting cylinder (6) is fixedly connected to a front stopper (44), the outer side of the limiting cylinder (6) is connected to a moving cylinder (13) in a sliding manner, the outer side of the moving cylinder (13) is provided with a plurality of inner support plates (20) in a circular array, the front sides of the plurality of inner support plates (20) are all provided with support components, and the outer sides of the plurality of inner support plates (20) are fixedly connected to the front stopper (44). A support pad (32) is connected, the outer side of the rear end of the fixed cylinder (1) is fixedly connected to a fourth support plate (36), the outer side of the front end of the fixed cylinder (1) is slidably connected to a sliding sleeve (33), a plurality of platforms (41) are distributed in an annular array on the outer sides of the fourth support plate (36) and the sliding sleeve (33), and a plurality of rear support wheels (42) are rotatably connected to the interior of the plurality of platforms (41), and the support assembly includes two tooth plates (26) and two support plates (28), both sides of the bottom of the inner support plate (20) are fixedly connected to a limiting frame (21), the inner side of the limiting frame (21) is slidably connected to a rotating shaft (19), both sides of the rotating shaft (19) are rotatably connected to a connecting plate (24), and one side of the two connecting plates (24) is fixedly connected to a limiting frame (21). The two limiting sleeves (25) are respectively slidably connected to the inside of the two limiting frames (21), the two tooth plates (26) are respectively slidably connected to the inside of the two limiting sleeves (25), the two support plates (28) are respectively fixedly connected to the top of the two third limiting bars (27), both ends of the two support plates (28) are rotatably connected to the front support wheels (29), one side of the two tooth plates (26) is fixedly connected to the third limiting bar (27), the two third limiting bars (27) are respectively slidably connected to the inside of the two limiting sleeves (25) and are adapted to the two limiting sleeves (25), a bottom support plate (30) is fixedly connected between the bottoms of the two tooth plates (26), and a plurality of limiting springs (31) are fixedly connected to the top of the bottom support plate (30).A connecting slider (54) is fixedly connected between the two connecting plates (24), and the connecting slider (54) passes through the limiting frame (21) and is slidably connected to the limiting frame (21). The top ends of the plurality of limiting springs (31) are fixedly connected to the connecting slider (54). The outer side of the connecting ring (5) is fixedly connected to a plurality of second support plates (16) in an annular array, and the outer sides of the plurality of second support plates (16) are hinged to a second hinged plate (17). The outer side of the moving cylinder (13) is fixedly connected to a plurality of first support plates (14) in an annular array, and the outer sides of the plurality of first support plates (14) are hinged to a first hinged plate (15). The middle sections of the first hinged plate (15) and the second hinged plate (17) are hinged to each other, and the rotating shaft (19) is rotatably connected to the second hinged plate (17) Inside the top end, one side of the bottom of the inner support plate (20) is fixedly connected to a first connecting block (18), the top of the first hinged plate (15) is hinged to the first connecting block (18), and multiple transverse plates (35) are fixedly connected between the multiple second support plates (16) and the multiple third support plates (34), wherein the outer side of one of the transverse plates (35) is fixedly connected to a drill (45), the output end of the drill (45) is fixedly connected to a drill bit (46), and one side of the drill (45) is fixedly connected to an observation camera (47), both ends of the rotating shaft (19) are fixedly connected to guide gears (23), both sides of the inner support plate (20) are fixedly connected to racks (22), and the two guide gears (23) are respectively meshed and connected to the bottoms of the two racks (22).

2. The device for opening a hole in a cylinder of a pressure-bearing special equipment according to claim 1, characterized in that: A threaded cylinder (55) is provided inside the limiting cylinder (6), and a plurality of guide plates (56) are fixedly connected between the threaded cylinder (55) and the movable cylinder (13). A plurality of through slots are provided on the outer wall of the limiting cylinder (6), and the plurality of guide plates (56) respectively pass through the plurality of through slots and are slidably connected to the plurality of through slots. The threaded rod (8) passes through the threaded cylinder (55) and is threadedly connected to the threaded cylinder (55). Two first limiting strips (9) are formed inside the rotating rod (7), and first limiting slots (10) are provided on both sides of the threaded rod (8). The two first limiting strips (9) are respectively slidably connected to the inside of the two first limiting slots (10) and are adapted to the two first limiting slots (10).

3. The device for opening a hole in a cylinder of a pressure-bearing special equipment according to claim 2, characterized in that: The outer side of the fourth support plate (36) is fixedly connected to a plurality of fixed sleeves (37), and the interior of the plurality of fixed sleeves (37) is hinged with a first lifting rod (38). The outer side of the sliding sleeve (33) is fixedly connected to a plurality of third support plates (34) in a ring array, and one side of the plurality of third support plates (34) is hinged with a second lifting rod (39). The plurality of first lifting rods (38) are hinged to the middle section of the second lifting rod (39) respectively. The bottom side of the table plate (41) is fixedly connected to a second connecting block (43), and the top of the first lifting rod (38) is hinged to the second connecting block (43). The bottom of the table plate (41) is fixedly connected to a slide rail (40), and the top of the second lifting rod (39) is fixedly connected to a connecting rod (53). The connecting rod (53) passes through the slide rail (40) and is slidably connected to the slide rail (40).

4. The cylinder hole opening device for pressure-bearing special equipment according to claim 3, characterized in that: The outer rear end of the fixed cylinder (1) is fixedly connected to a mounting sleeve (48), the bottom of the mounting sleeve (48) is fixedly connected to a first motor (49), the output end of the first motor (49) and the outer rear end of the rotating rod (7) are both fixedly connected to a first transmission gear (50), and the two first transmission gears (50) are meshedly connected. The top of the mounting sleeve (48) is fixedly connected to a second motor (51), the output end of the second motor (51) and the outer rear end of the rotating cylinder (2) are both fixedly connected to a second transmission gear (52), and the two second transmission gears (52) are meshedly connected.

5. A method for using a cylinder hole opening device for pressure-bearing special equipment, applicable to a cylinder hole opening device for pressure-bearing special equipment as claimed in claim 4, characterized in that: The specific steps include: Step 1: When drilling a hole inside the cylinder, the device is placed inside the cylinder, and the second motor (51) is started in the forward direction to drive the second transmission gear (52) to rotate in the forward direction, and the rotating cylinder (2) is driven to rotate, so that the rotating cylinder (2) drives the second limiting strip (12) to rotate when rotating, and thereby the second limiting strip (12) limits the second limiting groove (11), driving the threaded sleeve (3) to rotate, and the threaded sleeve (3) is limited and guided by the internal threaded ring (4), so that the threaded sleeve (3) moves backward inside the internal threaded ring (4) when rotating, so that the threaded sleeve (3) drives the connecting ring (5) and the limiting cylinder (6) to move synchronously, and when the connecting ring (5) moves, it drives the plurality of second support plates (16) to move, thereby driving the plurality of transverse plates (35) to move, so that the plurality of transverse plates (35) drive the plurality of third support plates (34) to move, so that the plurality of third support plates (34) drive the sliding sleeve (3) 3) Move, so that the sliding sleeve (33) slides toward the front end outside the fixed cylinder (1), and when the sliding sleeve (33) moves, it drives the plurality of third support plates (34) to move, so that the plurality of third support plates (34) pull the bottom ends of the plurality of second lifting rods (39) to move, so that the second lifting rods (39) and the bottom ends of the first lifting rods (38) are separated, and at the same time, the second lifting rods (39) and the first lifting rods (38) rotate with each other, so that the top end of the second lifting rod (39) drives the connecting rod (53) to slide inside the slide rail (40), thereby driving the plurality of table plates (41) to expand outward, thereby driving the plurality of rear support wheels (42) to open outward, so that the plurality of rear support wheels (42) are supported by the inner wall of the cylinder, so that the plurality of rear support wheels (42) and the inner wall of the cylinder are in rolling friction, thereby reducing friction, making it easier for the device to move inside the cylinder, and at the same time improving the stability of the device movement, so that the device is easier to move to the drilling position inside the cylinder; Step 2: The first motor (49) is started forward to drive the first transmission gear (50) to rotate forward, so that the rear first transmission gear (50) drives the rotating rod (7) to rotate, and when the rotating rod (7) rotates, the first limiting strip (9) limits the first limiting groove (10), so that the first limiting strip (9) drives the threaded rod (8) to rotate, so that when the threaded rod (8) rotates, the threaded barrel (55) is driven to move, and when the threaded barrel (55) moves, the multiple guide plates (56) are driven to move, so that when the multiple guide plates (56) move, the moving barrel (13) is driven to move, and when the moving barrel (13) moves The plurality of first support plates (14) are driven to move, and when the plurality of first support plates (14) move, the first hinge plate (15) is driven to move, and the first hinge plate (15) and the second hinge plate (17) are caused to rotate relative to each other, so that when the first hinge plate (15) and the second hinge plate (17) are deflected, the inner support plate (20) and the support pad (32) are driven to move, and at the same time, the second hinge plate (17) drives the rotating shaft (19) to move inside the limiting frame (21), thereby driving the inner support plate (20) and the support pad (32) to retract inward, thereby causing the plurality of support pads (32) to retract inward, thereby facilitating the movement of the device; Step 3: When the first motor (49) is started in reverse, the first transmission gear (50) is driven to rotate. When the first transmission gear (50) rotates, the rotating rod (7) is driven to rotate in the reverse direction. When the rotating rod (7) rotates, the first limit bar (9) and the threaded rod (8) are driven to rotate, so that when the threaded rod (8) rotates, the threaded cylinder (55) is driven to move, so that the threaded cylinder (55) drives the guide plate (56) and the moving cylinder (13) to move, and the moving cylinder (13) drives the plurality of first support plates (14) to move. The plurality of first support plates (14) drive the first hinge plate (15) to move, so that the first hinge plate (15) and the second hinge plate (17) rotate with each other, driving the plurality of inner support plates (20) and the plurality of support pads (32) to open outward, fit with the inner wall of the cylinder, support the device, improve the stability of the device, facilitate the drilling rig (45) to drive the drill bit (46) to drill the inner wall of the cylinder, and facilitate the adjustment of the drilling position on the inner wall of the cylinder, which is convenient for movement and drilling.

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