Pressure-bearing special equipment barrel tapping device and using method

Abstract

The invention provides a pressure-bearing special equipment barrel tapping device and a using method, and relates to the technical field of tapping devices. According to the pressure-bearing special equipment barrel tapping device and the using method, the pressure-bearing special equipment barrel tapping device comprises a fixed barrel, a rotating barrel is rotationally connected into the fixed barrel, a threaded sleeve is slidably connected into the rotating barrel, a movable barrel is slidably connected to the outer side of a limiting barrel, and a plurality of inner supporting plates are distributed on the outer side of the movable barrel in an annular array mode; supporting assemblies are arranged on the front sides of the multiple inner supporting plates correspondingly, multiple platens are distributed on the outer side of the fourth supporting plate and the outer side of the fixing sleeve in an annular array mode, and multiple rear supporting wheels are rotationally connected to the interiors of the platens correspondingly. According to the pressure-bearing special equipment barrel tapping device and the using method, the device can conveniently move in the barrel, meanwhile, the moving stability of the device is improved, the supporting structure on the outer side of the limiting barrel supports the inner wall of a barrel workpiece, therefore, the barrel and a tool are kept concentric, and machining operation is convenient.

Description

Technical Field

[0001] The invention relates to a hole-opening device, in particular to a hole-opening device for a cylinder of a pressure-bearing special equipment and a use method, 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 performed manually, especially when drilling holes on the inner wall of the cylinder. Since the cylinder is cylindrical, manual drilling operations cannot stably fix the cylinder, resulting in the accuracy of the drilling 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 it needs to be adjusted manually. However, the adjustment process is cumbersome due to the weight of the equipment and consumes the operator's physical strength. Summary of the invention

[0004] 1. Technical issues to be resolved The purpose of the present invention is to provide a cylinder hole opening device and a method for using pressure-bearing special equipment in order to solve the above-mentioned 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, since the equipment and the cylinder are fixed separately, the movement of the equipment inside the cylinder is very inconvenient and needs to be adjusted manually. However, due to the weight of the equipment, the adjustment process is cumbersome and consumes the physical strength of the operator.

[0005] (II) Technical solution 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 device, comprising a fixed cylinder, a rotating cylinder rotatably connected inside the fixed cylinder, a threaded sleeve slidably connected inside the rotating cylinder, second limit strips are integrally formed on both sides of the rotating cylinder, second limit grooves are provided on both sides of the threaded sleeve, two of the second limit strips are respectively slidably connected to the inside of the two second limit grooves and are slidably connected to the two second limit grooves, an internal threaded ring is fixedly connected to the front end of the fixed cylinder, the threaded sleeve penetrates the internal threaded ring and is threadedly connected to the internal threaded ring, a connecting ring is rotatably connected to the front end of the threaded sleeve, the front side of the connecting ring is fixedly connected to the limiting cylinder, and a rotating rod is rotatably connected to the inside of the threaded sleeve. The rotating rod passes through the rear end of the rotating cylinder and is rotatably connected to the rotating cylinder, and a threaded rod is slidably connected inside the rotating rod, and the rotating rod passes through the threaded sleeve and is movably connected to the threaded sleeve. The threaded rod passes through the limiting cylinder and is rotatably connected to the limiting cylinder. The front end of the limiting cylinder is fixedly connected to a front stopper, and the outer side of the limiting cylinder is slidably connected to a moving cylinder. A plurality of inner support plates are distributed in an annular array on the outer side of the moving cylinder, and a support assembly is provided on the front sides of the plurality of inner support plates, and support pads are fixedly connected to the outer sides of the plurality of inner support plates, a fourth support plate is fixedly connected to the outer side of the rear end of the fixed cylinder, and a sliding sleeve is slidably connected to the outer side of the front end of the fixed cylinder, and a plurality of table plates are distributed in an annular array on the outer sides of the fourth support plate and the fixed sleeve, and a plurality of rear support wheels are rotatably connected inside the plurality of table plates.

[0006] 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 a limiting frame, a rotating shaft is slidably connected inside the limiting frame, both ends of the rotating shaft are fixedly connected to guide gears, and both sides of the inner support plate are fixedly connected to racks, 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.

[0007] Preferably, connecting plates are rotatably connected on both sides of the rotating shaft, and one side of the two connecting plates is fixedly connected to a limiting sleeve, the two limiting sleeves are respectively slidably connected to the inside of the two limiting frames, the two tooth plates are respectively slidably connected to the inside of the two limiting sleeves, the two support plates are respectively fixedly connected to the top of the two third limiting strips, and both ends of the two support plates are rotatably connected to 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.

[0008] 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 top ends of the plurality of bottom support plates are fixedly connected to the connecting slider, and the bottom support plate and the tooth plate are supported and buffered by a plurality of limit springs.

[0009] 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 on 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 on the outer side of each of the first support plates; the first hinged plate and the second hinged plate are hinged to each other in the middle sections; 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.

[0010] Preferably, a threaded cylinder is provided inside the limiting cylinder, 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, a plurality of guide plates respectively penetrate the plurality of through grooves and are slidably connected with the plurality of through grooves, the threaded rod penetrates the threaded cylinder and is threadedly connected with the threaded cylinder, two first limiting strips are formed inside the rotating rod, first limiting grooves are provided on both sides of the threaded rod, two first limiting strips are respectively slidably connected to the two first limiting grooves and are adapted to the two first limiting 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.

[0011] Preferably, a plurality of third limit strips are fixedly connected to the outer side of the sliding sleeve in an annular array, a plurality of first lifting rods are hinged inside the fixed sleeves, a plurality of third support plates are fixedly connected to the outer side of the sliding sleeve in an annular array, a plurality of third support plates are hinged on one side of each second lifting rod, a plurality of first lifting rods are respectively hinged to the middle sections of the second lifting rods, a second connecting block is fixedly connected to one side of the bottom of the table plate, the top end of the first lifting rod is hinged to the second connecting block, a slide rail is fixedly connected to the bottom of the table plate, a connecting rod is fixedly connected to the top end of the second lifting rod, the connecting rod passes through the slide rail and is slidably connected to the slide rail, and the slide rail is supported by the connecting rod.

[0012] Preferably, a plurality of transverse plates are fixedly connected between the plurality of second support plates and the plurality of third support plates, a drill is fixedly connected to the outer side of one of the transverse plates, a drill bit is fixedly connected to the output end of the drill, an observation camera is fixedly connected to one side of the drill, the drilling position of the inner wall of the cylinder is observed through the observation camera, and the drill is started to drive the drill bit to drill holes in the cylinder.

[0013] 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, 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 meshingly connected, and the first transmission gear is driven to rotate by starting the first motor, thereby driving the rotating rod to rotate.

[0014] 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.

[0015] A method for using a cylinder hole opening device for pressure-bearing special equipment specifically comprises the following steps: Step 1: When drilling 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 limit 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 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 making the cam and the second support rail move in a different direction and making the cam move in a different direction. When the first and second hinge plates are moved, the first and second hinge plates are moved in a forward direction, and the first and second hinge plates are rotated with each other, so that the inner support plate and the support pad are moved when the first and second hinge plates are deflected, and at the same time, the second hinge plate drives the rotating shaft to move inside the limit frame, so as to drive the inner support plate and the support pad to shrink inwardly, so that the multiple support pads shrink inwardly, so as to facilitate the movement of the device; Step three: when the first motor is started in reverse, the first transmission gear is driven to rotate, and when the first transmission gear rotates, the rotating rod is driven to rotate in the opposite direction, and when the rotating rod rotates, the first limit bar and the threaded rod are driven to rotate, so that when the threaded rod rotates, the threaded cylinder is driven to move, and the threaded cylinder drives the guide plate and the moving cylinder to move, and the moving 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, and drive multiple inner support plates and multiple support pads to open 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 to drive the drill bit to drill holes in 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.

[0016] The present invention provides a cylinder hole opening device for pressure-bearing special equipment and a method for using the device, which has the following beneficial effects: 1. The pressure-bearing special equipment cylinder hole opening device and the use method thereof make the top end of the second lifting rod drive the connecting rod to slide inside the slide rail, thereby driving multiple table plates to expand outward, thereby driving multiple rear support wheels to open outward, so that the multiple rear support wheels are supported by the inner wall of the cylinder, so that the multiple rear support wheels 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 is easier to move to the drilling position inside the cylinder; 2. The pressure-bearing special equipment cylinder hole opening device and the use method enable the limit sleeve to drive the tooth plate to move, and then the tooth plate and the guide gear to move synchronously, and when the guide gear rotates, the tooth plate is driven to rise, and when the tooth plate rises, the support plate drives the multiple front support wheels to rise, so that the multiple front support wheels are in contact with and fit with the inner wall of the cylinder at the same time, and the front end of the device is supported, so as to improve the front and rear stability of the device; 3. The cylinder hole opening device and use method of the pressure-bearing special equipment, 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, drive 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 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 with 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, so that the cylinder and the tooling remain concentric, which is convenient for processing operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the limiting cylinder of the present invention; Figure 3 is a side view of the present invention; Figure 4 It is a structural schematic diagram of the movable cylinder of the present invention; Figure 5 is a schematic structural diagram of a third support plate of the present invention; Figure 6 It is a structural schematic diagram of the table plate of the present invention; Figure 7 It is a schematic structural diagram of the internal thread ring of the present invention; Figure 8 It is a structural schematic diagram of the limiting cylinder of the present invention; Fig. 9 It is a structural schematic diagram of the threaded rod of the present invention; Fig.10 is a schematic structural diagram of the first support plate of the present invention; Fig.11 It is a schematic structural diagram of the front support wheel of the present invention; Fig.12 It is a structural schematic diagram of the threaded barrel of the present invention; Fig.13 It is a structural schematic diagram of the threaded sleeve of the present invention; Fig.14 It is a schematic structural diagram of the first limiting strip of the present invention.

[0018] In the figure: 1, fixed cylinder; 2, rotating cylinder; 3, threaded sleeve; 4, internal thread 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 hinged plate; 16, second supporting plate; 17, second hinged 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

[0019] The embodiment of the present invention provides a cylinder hole opening device for pressure-bearing special equipment and a use method thereof.

[0020] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 , Fig.13 and Fig.14, including a fixed cylinder 1, a rotating cylinder 2 is rotatably connected inside the fixed cylinder 1, a threaded sleeve 3 is slidably connected inside the rotating cylinder 2, second limit strips 12 are integrally formed on both sides of the rotating cylinder 2, second limit grooves 11 are opened on both sides of the threaded sleeve 3, two second limit strips 12 are respectively slidably connected to the inside of the two second limit grooves 11 and are slidably connected to the two second limit grooves 11, an internal threaded ring 4 is fixedly connected to the front end of the fixed cylinder 1, the threaded sleeve 3 penetrates the internal threaded ring 4 and is threadedly connected to the internal threaded ring 4, a connecting ring 5 is rotatably connected to the front end of the threaded sleeve 3, and a limiting cylinder 6 is fixedly connected to the front side of the connecting ring 5, a rotating rod 7 is rotatably connected inside the threaded sleeve 3, the rotating rod 7 penetrates the rear end of the rotating cylinder 2 and is rotatably connected to the rotating cylinder 2, a threaded rod 8 is slidably connected inside the rotating rod 7, the rotating rod 7 penetrates the threaded sleeve 3 and is movably connected to the threaded sleeve 3, and the threaded rod 8 penetrates the limiting cylinder 6 and is rotatably connected to the limiting cylinder 6 Next, a front stopper 44 is fixedly connected to the front end of the limiting cylinder 6, and a moving cylinder 13 is slidably connected to the outer side of the limiting cylinder 6. 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 arranged on the front side of the plurality of inner support plates 20. A support pad 32 is fixedly connected to the outer side of the plurality of inner support plates 20, and a fourth support plate 36 is fixedly connected to the outer side of the rear end of the fixed cylinder 1, and a sliding sleeve 33 is slidably connected to the outer side of the front end of the fixed cylinder 1. A plurality of table plates 41 are distributed in a circular array on the outer sides of the fourth support plate 36 and the fixed sleeve 37, and a plurality of rear support wheels 42 are rotatably connected to the interior of the plurality of table plates 41. A second motor 51 is fixedly connected to the top of the mounting sleeve 48, and a second transmission gear 52 is fixedly connected to the output end of the second motor 51 and the outer side of the rear end of the rotating cylinder 2, and the two second transmission gears 52 are meshingly connected, and the second transmission gear 52 is driven to rotate by starting the second motor 51, so that the second transmission gear 52 drives the rotating cylinder 2 to rotate.

[0021] 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 with a rotating shaft 19. Both ends of the rotating shaft 19 are fixedly connected with guide gears 23. Both sides of the inner support plate 20 are fixedly connected with racks 22. 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 with connecting plates 24. One side of the two connecting plates 24 is fixedly connected with a 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, 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 with 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 with 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, and 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, and a plurality of limit springs 31 are fixedly connected to the top of the bottom support plate 30, and 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 top of each bottom support plate 30 is fixedly connected to the connecting slider 54, and the bottom support plate 30 and the tooth plate 26 are supported and buffered by multiple limit springs 31. The outer side of the connecting ring 5 is fixedly connected to multiple second support plates 16 in an annular array, and the outer sides of multiple second support plates 16 are hinged with second hinged plates 17. The outer side of the moving cylinder 13 is fixedly connected to multiple first support plates 14 in an annular array, and the outer sides of multiple first support plates 14 are hinged with first hinged plates 15. The first hinged plate 15 and the middle sections of the second hinged plate 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 55 is arranged inside the limiting cylinder 6. A plurality of guide plates 56 are fixedly connected between the threaded cylinder 55 and the moving cylinder 13, a plurality of through grooves are provided on the outer wall of the limiting cylinder 6, and a plurality of guide plates 56 respectively penetrate the plurality of through grooves and are slidably connected to the plurality of through grooves, a 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, and 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 driven to rotate by the rotating rod 7, and the threaded rod 8 drives the threaded cylinder 55 and the moving cylinder 13 to move, a mounting sleeve 48 is fixedly connected to the outer side of the rear end of the fixed cylinder 1, and a first motor 49 is fixedly connected to the bottom of the mounting sleeve 48,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 with 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, and the rotating rod 7 is driven to rotate.

[0022] The outer side of the sliding sleeve 33 is fixedly connected to a plurality of third limit strips 27 in an annular array, and the first lifting rods 38 are hinged inside the plurality of fixed sleeves 37. The outer side of the sliding sleeve 33 is fixedly connected to a plurality of third support plates 34 in an annular array, and the second lifting rods 39 are hinged on one side of the plurality of third support plates 34. The plurality of first lifting rods 38 are respectively hinged to the middle sections of the second lifting rods 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 to the second connecting block 43. The bottom of the table 41 is fixedly connected to a slide rail 40, and the second lifting rod 39 is hinged to the second lifting rod 39. A connecting rod 53 is fixedly connected to the top of the rod 39, 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, respectively. A drilling rig 45 is fixedly connected to the outer side of one of the cross plates 35, and 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 by the observation camera 47, and the drilling rig 45 is started to drive the drill bit 46 to drill holes in the cylinder.

[0023] 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 drive the rotating cylinder 2 to rotate, so that the rotating cylinder 2 drives the second limit bar 12 to rotate when rotating, and thereby the second limit bar 12 limits the second limit groove 11, drives 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, and when the sliding sleeve 33 moves, it drives multiple third support plates 34 to move, so that the multiple third support plates 34 pull the bottom ends of multiple 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 rods 39 drives the connecting rod 53 to slide inside the slide rail 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, which reduces friction, facilitates the movement of the device inside the cylinder, and at the same time improves the stability of the movement of the device, so that the device is convenient to move to the drilling position inside the cylinder.

[0024] The second motor 51 is started forward to drive the second transmission gear 52 to rotate forward, so that the rear support wheel 42 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, and when the threaded cylinder 55 moves, it drives multiple guide plates 56 to move, so that when the multiple guide plates 56 move, it drives the moving cylinder 13 to move, and when the moving cylinder 13 moves, it drives multiple first support plates 14 to move, and 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 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 limit frame 21, so as to drive the inner support plate 20 and the support pad When the guide gear 23 moves, the rack 22 limits the guide gear 23, so that the guide gear 23 rotates while moving. 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 moves synchronously with the guide gear 23, and drives the toothed plate 26 to rise when the guide gear 23 rotates. When the guide gear 23 rotates, it drives the toothed plate 26 to rise, and when the toothed plate 26 rises, it drives the support plate 28 to rise, so that the support plate 28 drives the multiple front support wheels 29 to rise, so that the multiple front support wheels 29 are in contact with the inner wall of the cylinder at the same time, and the front end of the device is supported, thereby improving the front and rear stability of the device.

[0025] When the first motor 49 is started in reverse, the first transmission gear 50 is driven to rotate, and 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 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 multiple first support plates 14 to move, and the 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 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 with 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 limiting cylinder 6 supports the inner wall of the cylinder workpiece, so that the cylinder and the tooling remain concentric, which is convenient for processing operations.

[0026] A method for using a cylinder hole opening device for pressure-bearing special equipment specifically comprises the following steps: Step 1: When drilling 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 limit bar 12 to rotate when rotating, and thereby the second limit bar 12 limits the second limit groove 11, drives the threaded sleeve 3 to rotate, and limits and guides the threaded sleeve 3 through the internal thread ring 4, so that the threaded sleeve 3 moves backward inside the internal thread 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, 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 rods 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 second motor 51 is started forward to drive the second transmission gear 52 to rotate forward, so that the rear support wheel 42 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 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, they drive the moving barrel 13 to move, and when the moving barrel 13 moves, it drives the multiple guide plates 56 to move. The first support plates 14 move, and when the multiple 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 shrink inwardly, so that the multiple support pads 32 shrink inwardly, which is convenient for the device to move; Step three: 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 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, and the threaded cylinder 55 drives the guide plate 56 and the moving cylinder 13 to move. The moving cylinder 13 drives multiple first support plates 14 to move, and the 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 relative to 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, 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.

[0027] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached 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 a rotating cylinder (2) inside, and a threaded sleeve (3) is slidably connected to the rotating cylinder (2). Second limiting strips (12) are integrally formed on both sides of the rotating cylinder (2). Second limiting grooves (11) are provided on both sides of the threaded sleeve (3). 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). 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). The front side of the connecting ring (5) is fixedly connected to a limiting cylinder (6). The threaded sleeve (3) is rotatably connected to a 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 internally A threaded rod (8) is slidably connected, 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), 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 slidably connected to a moving cylinder (13), the outer side of the moving cylinder (13) is provided with a plurality of inner support plates (20) in an annular array, the front sides of the plurality of inner support plates (20) are all provided with support assemblies, the outer sides of the plurality of inner support plates (20) are all 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), the outer side of the front end of the fixed cylinder (1) is slidably connected to a sliding sleeve (33), the outer sides of the fourth support plate (36) and the fixed sleeve (37) are provided with a plurality of table plates (41) in an annular array, and the interiors of the plurality of table plates (41) are rotatably connected to a plurality of rear support wheels (42).

2. The cylinder hole opening device for pressure-bearing special equipment according to claim 1, characterized in that: The support assembly comprises 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); a rotating shaft (19) is slidably connected inside the limiting frame (21); both ends of the rotating shaft (19) are fixedly connected to a guide gear (23); both sides of the inner support plate (20) are fixedly connected to a rack (22); and the two guide gears (23) are respectively meshed and connected to the bottom of the two racks (22).

3. The cylinder hole opening device for pressure-bearing special equipment according to claim 2, characterized in that: Both sides of the rotating shaft (19) are rotatably connected to connecting plates (24), one side of the two connecting plates (24) is fixedly connected to a limiting sleeve (25), 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 ends of the two third limiting strips (27), and both ends of the two support plates (28) are rotatably connected to front support wheels (29).

4. A cylinder hole opening device for pressure-bearing special equipment according to claim 3, characterized in that: A third limit strip (27) is fixedly connected to one side of the two tooth plates (26), and the two third limit strips (27) are respectively slidably connected to the inside of the two limit sleeves (25) and are compatible with 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 slide block (54) is fixedly connected between the two connecting plates (24), and the connecting slide block (54) passes through the limit frame (21) and is slidably connected to the limit frame (21), and the tops of the plurality of bottom support plates (30) are fixedly connected to the connecting slide block (54).

5. The cylinder hole opening device for pressure-bearing special equipment according to claim 3, characterized in that: 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 all hingedly connected 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 all hingedly connected to a first hinged plate (15); the first hinged plate (15) and the second hinged plate (17) are hingedly connected at their middle sections; the rotating shaft (19) is rotatably connected to the inner top of the second hinged plate (17); one side of the bottom of the inner support plate (20) is fixedly connected to a first connecting block (18), and the top of the first hinged plate (15) is hingedly connected to the first connecting block (18).

6. The cylinder hole opening device for pressure-bearing special equipment according to claim 1, characterized in that: A threaded cylinder (55) is arranged inside the limiting cylinder (6), 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), and 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).

7. The cylinder hole opening device for pressure-bearing special equipment according to claim 1, characterized in that: The sliding sleeve (33) is fixedly connected to a plurality of third limit strips (27) in an annular array on the outside, and a first lifting rod (38) is hinged inside each of the plurality of fixed sleeves (37). The sliding sleeve (33) is fixedly connected to a plurality of third support plates (34) in an annular array on the outside, and a second lifting rod (39) is hinged on one side of each of the plurality of third support plates (34). The plurality of first lifting rods (38) are respectively hinged to the middle sections of the second lifting rods (39). A second connecting block (43) is fixedly connected to one side of the bottom of the table plate (41), 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).

8. The cylinder hole opening device for pressure-bearing special equipment according to claim 5, characterized in that: A plurality of transverse plates (35) are respectively fixedly connected between the plurality of second support plates (16) and the plurality of third support plates (34), wherein a drill (45) is fixedly connected to the outside of one of the transverse plates (35), a drill bit (46) is fixedly connected to the output end of the drill (45), and an observation camera (47) is fixedly connected to one side of the drill (45).

9. The cylinder hole opening device for pressure-bearing special equipment according to claim 1, characterized in that: The outer side of the 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 side of the rear end of the rotating rod (7) are both fixedly connected to a first transmission gear (50); the two first transmission gears (50) are meshingly 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 side of the rear end of the rotating cylinder (2) are both fixedly connected to a second transmission gear (52); the two second transmission gears (52) are meshingly connected.

10. A method for using a cylinder hole opening device for pressure-bearing special equipment, applicable to any cylinder hole opening device for pressure-bearing special equipment as claimed in any one of claims 1 to 9, 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 a positive direction to drive the second transmission gear (52) to rotate in a positive direction, and the rotating cylinder (2) is driven to rotate, so that the rotating cylinder (2) drives the second limit bar (12) to rotate when rotating, and thereby the second limit bar (12) limits the second limit groove (11), drives the threaded sleeve (3) to rotate, and limits and guides the threaded sleeve (3) through the internal thread ring (4), so that the threaded sleeve (3) moves backward inside the internal thread ring (4) when rotating, so that the threaded sleeve (3) drives the connecting ring (5) and the limit 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) moves, thereby causing the sliding sleeve (33) to slide toward the front end on the outside of 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, thereby causing the second lifting rods (39) and the bottom ends of the first lifting rods (38) to move away from each other, 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 movement of the device, so that it is easier for the device to move to the drilling position inside the cylinder; Step 2: The second motor (51) is started forward to drive the second transmission gear (52) to rotate forward, so that the rear support wheel (42) 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 barrel (55) is driven to move. When the threaded barrel (55) moves, it drives the multiple guide plates (56) to move. When the multiple guide plates (56) move, it drives the moving barrel (13) to move. 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) 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 inwardly, thereby causing the plurality of support pads (32) to retract inwardly, so as to facilitate 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 strip (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 relative to each other, driving the plurality of inner support plates (20) and the plurality of support pads (32) to open outwards and fit with the inner wall of the cylinder to support the device, improve the stability of the device, facilitate the drilling rig (45) to drive the drill bit (46) to drill holes on the inner wall of the cylinder, and facilitate the adjustment of the drilling position on the inner wall of the cylinder, so as to facilitate movement and drilling.

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