Pressure vessel barrel trepanning equipment

Abstract

The invention relates to the field of pressure vessel trepanning, and discloses pressure vessel barrel trepanning equipment which comprises a bottom plate. Two lifting assemblies; two conversion assemblies; a lifting assembly; a cylinder; a lifting assembly; and a punching assembly and a positioning assembly. When a tooth block drives a first tooth plate to descend and pulls a second gear to rotate anticlockwise, the second tooth plate can be stressed upwards, an arc-shaped block drives a cylinder to move upwards, meanwhile, when the tooth block vertically faces downwards, the first gears on the left side and the right side can be driven to symmetrically rotate and move downwards, and at the moment, the two first gears can pull a first movable piece to move downwards; when the cylinder is lifted by the arc-shaped block, the two clamping hands hinged to the first movable piece can rotate inwards under the limiting of the second movable piece and clamp the outer edge of the cylinder lifted by the arc-shaped block, at the moment, the cylinder is clamped by the supporting rods on the left side and the right side and is lifted by the bottom, and the problems that the drilling degree of a drill bit is difficult to observe in a traditional clamping method; and metal scraps generated during drilling cannot be cleaned in time.

Description

Technical Field

[0001] The present application relates to the technical field of pressure vessel hole opening, and in particular to a pressure vessel cylinder hole opening device. Background Art

[0002] As core equipment in the petrochemical, energy, pharmaceutical and other industrial fields, the cylinder structure of pressure vessels must meet the safety and reliability requirements under extreme working conditions such as high temperature, high pressure, and corrosive media. In actual engineering applications, the cylinder requires holes to be drilled for installation of pipes, instrument interfaces or inspection holes. When drilling holes in the curved cylinder, existing equipment needs to clamp the cylinder first, and the stability of the clamping will directly affect the accuracy of the hole. Although a linkage mechanism with internal and external clamping has been developed to clamp and fix the outer and inner walls of the cylinder at the same time, this clamping method makes it difficult to observe the drilling depth of the drill bit during drilling, and the metal waste generated during drilling cannot be cleaned up in time. In addition, the pressure cylinder is mostly made of thicker metal material, and the thickness of the cylinder wall is thicker than that of ordinary pipe walls. The existing pressure cylinder hole opening equipment also lacks a positioning and shock-absorbing component when in use to prevent drilling deviation. Summary of the invention

[0003] The present application proposes a pressure vessel cylinder hole-opening device, which has the advantage of linked clamping of the outer wall, and is used to solve the problem that the drilling degree of the drill bit in the traditional clamping method is difficult to observe and the metal waste generated during drilling cannot be cleaned up in time.

[0004] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: a pressure vessel cylinder hole opening device, comprising a bottom plate, two lifting assemblies are installed on the top of the bottom plate, and also comprises a positioning hole opening mechanism, which comprises two conversion assemblies, the two conversion assemblies are fixedly installed on the inner side of the lifting assembly, a lifting assembly is fixedly installed in the middle of the two conversion assemblies, a cylinder is installed on the top of the lifting assembly, a lifting assembly is fixedly installed on the back of the cylinder, a hole opening assembly is fixedly installed on the front side of the lifting assembly, and a positioning assembly is installed below the hole opening assembly; The lifting assembly includes a fixed seat, which is fixedly installed on the top of the base plate. A first hydraulic rod is fixedly installed on the top of the fixed seat. A gear block is installed at the telescopic end of the first hydraulic rod. First gears are meshed on the left and right sides of the gear block. First movable plates are sleeved on the outer sides of the rotating shafts of the two first gears, and second movable plates are installed on the tops of the two first movable plates.

[0005] Preferably, a connecting member is movably hinged to the inner sides of the two second movable pieces. A support rod is fixedly installed on the back of the connecting member. The bottom end of the support rod is fixedly connected to the fixed seat. The two second movable pieces are both movably hinged to the outside of the support rod. Clamping hands are movably hinged to the other sides of the two first movable pieces and the second movable pieces. The two clamping hands are symmetrically installed. The above structure can clamp the outer wall of the cylinder during operation.

[0006] Preferably, the transformation assembly includes a second gear. A U-shaped rod is installed through the middle of the second gear. The bottom end of the U-shaped rod is fixedly connected to the top of the fixed seat. A first toothed plate and a second toothed plate are respectively meshed with the left and right sides of the second gear. The above structure can change the direction of force transmission during operation.

[0007] Preferably, the lifting assembly includes two groups of intersecting movable rods. Bent rods are movably hinged to the upper and lower sides of the inner sides of the two groups of movable rods. The bottom bent rods are fixedly connected to the bottom plate. An arc-shaped block is fixedly installed at the top of the top bent rods. The above structure can lift the bottom of the cylinder during operation.

[0008] Preferably, the installation position of the first toothed plate is lower than that of the second toothed plate. The left side of the first toothed plate is fixedly connected to the right side of the toothed block. The right side of the second toothed plate is fixedly connected to the outer side of the arc-shaped block.

[0009] Preferably, the lifting component includes a column. The column is fixedly installed on the top of the bottom plate. Connecting rods are fixedly installed on the left and right sides of the column. First springs are movably hinged to the inner sides of the two connecting rods. A second hydraulic rod is fixedly installed inside the column. The telescopic end of the second hydraulic rod is fixedly connected to a cross plate. The above structure can drive the hole-opening component to move up and down during operation.

[0010] Preferably, the tails of the two first springs are elastically connected to two other connecting rods. The two bottom connecting rods are fixedly installed on the top of the bottom plate.

[0011] Preferably, the hole-opening assembly includes a motor. The motor is fixedly installed at the front end of the cross plate. An elastic sheet is movably sleeved on the outer edge of the output shaft of the motor. The bottom end of the output shaft of the motor is fixedly connected to a drill bit. A drill disc is fixedly connected to the outer edge of the drill bit. The above structure can open a hole in the cylinder during operation.

[0012] Preferably, the positioning assembly includes two rubber pads which are installed on the top of the cylinder. Short rods are fixedly connected to the inner sides of the two rubber pads. The other ends of the short rods are inserted with arc-shaped rods. Both ends of the two arc-shaped rods are elastically connected with second springs. The two arc-shaped rods and the two second springs together form a ring. The outer edge of the ring is arc-shaped and sleeved with a positioning block. The above structure can position and damp the opening component during operation.

[0013] Preferably, the elastic pieces are arranged in a cross shape and the bottom surface is arc-shaped, and can be embedded into the gaps adjacent to multiple positioning blocks.

[0014] The beneficial effects of the present invention are as follows: 1. By installing a lifting component, a transformation component and a lifting component that cooperate with each other, when the stroke of the first hydraulic rod is shortened, the tooth block will move vertically downward, driving the first toothed plate to descend, and pulling the second gear to rotate counterclockwise. At this time, the second toothed plate will be forced upward, and the arc-shaped block will also drive the cylinder upward. At the same time, when the tooth block moves vertically downward, it will also drive the first gears on the left and right sides to rotate symmetrically and move downward. At this time, the two first gears will pull the first movable piece downward. The two clamping hands hinged to the first movable piece will rotate inward under the limitation of the second movable piece, and clamp the outer edge of the cylinder lifted by the arc-shaped block. At this time, the cylinder is clamped by the support rods on the left and right sides and the lifting force at the bottom, solving the problems that in the traditional clamping method, it is difficult to observe the drilling depth of the drill bit during drilling, and the metal waste generated during drilling cannot be cleaned in time.

[0015] 2. By installing a positioning assembly, when the drill bit and the drill disc rotate to open a hole, they will be vibrated. This part of the vibration will be transmitted to the surrounding positioning blocks through the elastic pieces. The positioning blocks installed on the arc-shaped rods have a small activity range, and the longitudinal vibration is reduced by the characteristics of the rubber material. The positioning blocks installed on the outer edge of the second spring can reduce the horizontal vibration by deforming the second spring. The different soft and hard connection methods of the positioning blocks on both sides can ensure the clamping of the cross-shaped elastic pieces, solving the problem that the existing pressure cylinder opening equipment lacks a positioning and damping component during use, resulting in drilling vibration deviation.

[0016] 3. By installing a lifting component and a drilling component that cooperate with each other, when the stroke of the second hydraulic rod is shortened, the cross plate moves downward, which can drive the entire opening component downward. After the drill disc fits the bottom of the cylinder, stop the second hydraulic rod. At this time, the cross-shaped elastic pieces will be embedded into the gaps of the multiple positioning blocks arranged in a ring. Then start the motor, and the motor will drive both the drill bit and the drill disc to rotate, and then slowly shorten the stroke of the second hydraulic rod again. After the drill bit opens a positioning hole at the bottom of the cylinder, the drill disc can continue to move downward to open a larger-diameter round hole, realizing the function of linkage positioning and opening holes and reducing opening deviation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings forming a part of the specification depict the embodiments disclosed in the present application and, together with the specification, are used to explain the principles of the present application in a clear and understandable manner.

[0018] With reference to the accompanying drawings, a more clear understanding of the present disclosure can be obtained according to the following detailed description, where:[[]]END]] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a side view of the overall structure of the present invention; Figure 3 is a top view of the overall structure of the present invention; Figure 4 is the present invention Figure 3 is an enlarged schematic view of the structure at A in; Figure 5 is a schematic diagram of the lifting assembly structure of the present invention; Figure 6 is a schematic diagram of the lifting support assembly structure of the present invention; Figure 7 is a schematic diagram of the lifting and lowering assembly structure of the present invention; Figure 8 is a schematic diagram of the hole-opening assembly structure of the present invention; Figure 9 is a schematic diagram of the positioning assembly structure of the present invention.

[0019] Where: 1, base plate; 2, lifting assembly; 3, transformation assembly; 4, lifting support assembly; 5, cylinder; 6, lifting and lowering assembly; 7, hole-opening assembly; 8, positioning assembly; 21, fixed seat; 22, first hydraulic rod; 23, toothed block; 24, first gear; 25, first movable piece; 26, second movable piece; 27, connecting member; 28, support rod; 29, clamping hand; 31, second gear; 32, first toothed plate; 33, second toothed plate; 41, movable rod; 42, bent rod; 43, arc-shaped block; 61, column; 62, connecting rod; 63, first spring; 64, second hydraulic rod; 65, cross plate; 71, motor; 72, elastic piece; 73, drill bit; 74, drill disc; 81, rubber pad; 82, short rod; 83, arc-shaped rod; 84, second spring; 85, positioning block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0021] Please refer to Figures 1-9 For a pressure vessel cylinder body hole-opening device in this embodiment, it includes a bottom plate 1. Two lifting components 2 are installed on the top of the bottom plate 1. It further includes a positioning and hole-opening mechanism, which includes two transformation components 3. Both of the two transformation components 3 are fixedly installed inside the lifting components 2. A lifting component 4 is fixedly installed in the middle of the two transformation components 3. A cylinder 5 is installed on the top of the lifting component 4. A lifting component 6 is fixedly installed on the back of the cylinder 5. An opening component 7 is fixedly installed on the front side of the lifting component 6. A positioning component 8 is installed below the opening component 7; The lifting component 2 includes a fixed seat 21. The fixed seat 21 is fixedly installed on the top of the bottom plate 1. A first hydraulic rod 22 is fixedly installed on the top of the fixed seat 21. A tooth block 23 is installed at the telescopic end of the first hydraulic rod 22. A first gear 24 is meshed on both the left and right sides of the tooth block 23. A first movable piece 25 is sleeved on the outer side of the rotating shafts of the two first gears 24. A second movable piece 26 is installed on the top of both of the two first movable pieces 25; The inner sides of the two second movable pieces 26 are movably hinged with a connecting piece 27. A support rod 28 is fixedly installed on the back of the connecting piece 27. The bottom end of the support rod 28 is fixedly connected with the fixed seat 21. Both of the two second movable pieces 26 are movably hinged on the outer side of the support rod 28. A clamping hand 29 is movably hinged on the other side of both the two first movable pieces 25 and the second movable pieces 26. The two clamping hands 29 are symmetrically installed; When shortening the stroke of the first hydraulic rod 22, the tooth block 23 will move vertically downward. At this time, the left first tooth plate 32 will also descend, and will pull the second gear 31 to rotate counterclockwise. At this time, the right second tooth plate 33 will be forced to move upward. At the same time, the arc-shaped block 43 will also drive the cylinder 5 to move upward. When the tooth block 23 moves vertically downward, it will drive the first gears 24 on both the left and right sides to rotate symmetrically and move downward. At this time, the two first gears 24 will pull the first movable pieces 25 downward. The two clamping hands 29 hinged with the first movable pieces 25 will rotate inward under the limitation of the second movable pieces 26, and will clamp the outer edge of the cylinder 5 lifted by the arc-shaped block 43. At this time, the cylinder 5 is clamped by the support rods 28 on both the left and right sides and the lifting force at the bottom; Among them, the transformation component 3 includes a second gear 31. A U-shaped rod is installed through the middle of the second gear 31. The bottom end of the U-shaped rod is fixedly connected with the top of the fixed seat 21. A first tooth plate 32 and a second tooth plate 33 are respectively meshed on the left and right sides of the second gear 31; When the tooth block 23 moves vertically downward, it can drive the left first tooth plate 32 to descend, and pull the second gear 31 to rotate counterclockwise. At this time, the right second tooth plate 33 will be forced to move upward. At the same time, the arc-shaped block 43 can also drive the cylinder 5 to move upward; Among them, the lifting component 4 includes two groups of intersecting movable rods 41. The upper and lower inner sides of the two groups of movable rods 41 are movably hinged with bent rods 42. Multiple bent rods 42 at the bottom are fixedly connected to the bottom plate 1, and an arc-shaped block 43 is fixedly installed at the top of multiple bent rods 42 at the top; the installation position of the first toothed plate 32 is lower than that of the second toothed plate 33. The left side of the first toothed plate 32 is fixedly connected to the right side of the toothed block 23, and the right side of the second toothed plate 33 is fixedly connected to the outer side of the arc-shaped block 43; When the toothed block 23 moves vertically downward, the arc-shaped block 43 can drive the cylinder 5 to move upward. While the arc-shaped block 43 moves upward, the X-shaped structure formed by the movable rod 41 and the bent rod 42 can also provide front and rear side limits; Among them, the lifting component 6 includes a column 61. The column 61 is fixedly installed on the top of the bottom plate 1. Connecting rods 62 are fixedly installed on the left and right sides of the column 61. The inner sides of the two connecting rods 62 are movably hinged with first springs 63. A second hydraulic rod 64 is fixedly installed inside the column 61. The telescopic end of the second hydraulic rod 64 is fixedly connected to a cross plate 65; the tails of the two first springs 63 are elastically connected to the other two connecting rods 62, and the two bottom connecting rods 62 are fixedly installed on the top of the bottom plate 1; Shorten the stroke of the second hydraulic rod 64, and the cross plate 65 moves downward, which can drive the entire hole-opening component 7 downward; Among them, the hole-opening component 7 includes a motor 71. The motor 71 is fixedly installed at the front end of the cross plate 65. An elastic piece 72 is movably sleeved on the outer edge of the output shaft of the motor 71. The bottom end of the output shaft of the motor 71 is fixedly connected to a drill bit 73. A drill disc 74 is fixedly connected to the outer edge of the drill bit 73; Start the motor 71, and the motor 71 will drive both the drill bit 73 and the drill disc 74 to rotate. Then, slowly shorten the stroke of the second hydraulic rod 64 again, so that after the drill bit 73 opens a positioning hole at the bottom of the cylinder 5, the drill disc 74 continues to open a round hole with a larger diameter downward; Among them, the positioning component 8 includes two rubber pads 81. The two rubber pads 81 are installed on the top of the cylinder 5. Short rods 82 are fixedly connected to the inner sides of the two rubber pads 81. Arc-shaped rods 83 are inserted into the other ends of the short rods 82. The two ends of the two arc-shaped rods 83 are elastically connected to second springs 84. The two arc-shaped rods 83 and the two second springs 84 together form a ring. A positioning block 85 is arc-shapedly sleeved on the outer edge of the ring; the elastic piece 72 is arranged in a cross shape and has an arc-shaped bottom surface, and can be embedded into the adjacent gaps of multiple positioning blocks 85; When the drill bit 73 and the drill disc 74 rotate to open a hole, they will be subject to vibrations. This part of the vibration will be transmitted to the surrounding positioning blocks 85 through the elastic piece 72. The positioning block 85 installed on the arc-shaped rod 83 has a small range of movement. By virtue of the characteristics of the rubber material, the longitudinal vibration is reduced. And the positioning block 85 installed on the outer edge of the second spring 84 can reduce the horizontal vibration by deforming the second spring 84. The different soft and hard connection methods of the two-sided positioning blocks 85 can ensure the clamping of the cross-shaped elastic piece 72.

[0022] Working principle: When using the present invention, first place the cylinder 5 to be opened on the top of the arc-shaped block 43, then shorten the stroke of the first hydraulic rod 22. The tooth block 23 will move vertically downward. At this time, the left first tooth plate 32 will also descend and pull the second gear 31 to rotate counterclockwise. At this time, the right second tooth plate 33 will be forced upward. At the same time, the arc-shaped block 43 will also drive the cylinder 5 to move upward. When the arc-shaped block 43 moves upward, the X-shaped structure composed of the movable rod 41 and the bent rod 42 will provide front and rear side limits. When the tooth block 23 moves vertically downward, it will drive the first gears 24 on the left and right sides to rotate symmetrically and move downward. At this time, the two first gears 24 will pull the first movable piece 25 downward. The two clamping hands 29 hinged to the first movable piece 25 will rotate inward under the limit of the second movable piece 26 and clamp the outer edge of the cylinder 5 lifted by the arc-shaped block 43. At this time, the cylinder 5 is clamped by the support rods 28 on the left and right sides and the lifting force at the bottom. After the cylinder 5 is fixed, place the positioning assembly 8 at the position where the cylinder 5 needs to be opened. The bottom surfaces of the rubber pad 81 and the positioning block 85 are both designed with arcs and can fit the outer wall of the cylinder 5. At this time, first shorten the stroke of the second hydraulic rod 64. The cross plate 65 moves downward, driving the entire hole-opening assembly 7 downward. After the drill disc 74 fits the bottom of the cylinder 5, stop the second hydraulic rod 64. At this time, the cross-shaped elastic piece 72 will be embedded into the gaps of the surrounding arranged positioning blocks 85. Then start the motor 71. The motor 71 will drive both the drill bit 73 and the drill disc 74 to rotate, and then slowly shorten the stroke of the second hydraulic rod 64 again. After the drill bit 73 opens a positioning hole at the bottom of the cylinder 5, the drill disc 74 will continue to open a larger-diameter round hole downward. When the drill bit 73 and the drill disc 74 rotate to open a hole, they will be subject to vibrations. This part of the vibration will be transmitted to the surrounding positioning blocks 85 through the elastic piece 72. The positioning block 85 installed on the arc-shaped rod 83 has a small range of movement. By virtue of the characteristics of the rubber material, the longitudinal vibration is reduced. And the positioning block 85 installed on the outer edge of the second spring 84 can reduce the horizontal vibration by deforming the second spring 84. The different soft and hard connection methods of the two-sided positioning blocks 85 can ensure the clamping of the cross-shaped elastic piece 72.

[0023] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A pressure vessel cylinder body hole-opening device, comprising a bottom plate (1), characterized in that, Two lifting components (2) are installed on the top of the bottom plate (1), and further included is a positioning and opening mechanism, which includes two transformation components (3). Both of the two transformation components (3) are fixedly installed inside the lifting component (2). A lifting component (4) is fixedly installed in the middle of the two transformation components (3). A cylinder (5) is installed on the top of the lifting component (4). A lifting component (6) is fixedly installed on the back of the cylinder (5). An opening component (7) is fixedly installed on the front side of the lifting component (6). A positioning component (8) is installed below the opening component (7); The lifting component (2) includes a fixed seat (21), which is fixedly installed on the top of the bottom plate (1). A first hydraulic rod (22) is fixedly installed on the top of the fixed seat (21). A tooth block (23) is installed at the telescopic end of the first hydraulic rod (22). First gears (24) are meshed on the left and right sides of the tooth block (23). First movable pieces (25) are sleeved on the outer sides of the rotating shafts of the two first gears (24). Second movable pieces (26) are installed on the tops of the two first movable pieces (25).

2. The opening device for a pressure vessel cylinder according to claim 1, characterized in that Connectors (27) are movably hinged inside the two second movable pieces (26). A support rod (28) is fixedly installed on the back of the connector (27). The bottom end of the support rod (28) is fixedly connected to the fixed seat (21). The two second movable pieces (26) are movably hinged on the outer side of the support rod (28). Clamping hands (29) are movably hinged on the other sides of the two first movable pieces (25) and the second movable pieces (26). The two clamping hands (29) are symmetrically installed.

3. The opening device for a pressure vessel cylinder according to claim 1, characterized in that, The transformation component (3) includes a second gear (31). A U-shaped rod is installed through the middle of the second gear (31). The bottom end of the U-shaped rod is fixedly connected to the top of the fixed seat (21). A first tooth plate (32) and a second tooth plate (33) are respectively meshed on the left and right sides of the second gear (31).

4. A pressure vessel cylinder opening device according to claim 1, characterized in that, The lifting component (4) includes two groups of crossed movable rods (41). Bent rods (42) are movably hinged on the upper and lower sides inside the two groups of movable rods (41). Multiple bent rods (42) at the bottom are fixedly connected to the bottom plate (1). An arc-shaped block (43) is fixedly installed on the tops of multiple bent rods (42) at the top.

5. The opening device for a pressure vessel cylinder according to claim 3, characterized in that, The installation position of the first tooth plate (32) is lower than that of the second tooth plate (33). The left side of the first tooth plate (32) is fixedly connected to the right side of the tooth block (23). The right side of the second tooth plate (33) is fixedly connected to the outer side of the arc-shaped block (43).

6. The opening device for a pressure vessel cylinder according to claim 1, characterized in that, The lifting component (6) includes a column (61), which is fixedly installed on the top of the bottom plate (1). Connecting rods (62) are fixedly installed on the left and right sides of the column (61). First springs (63) are movably hinged inside the two connecting rods (62). A second hydraulic rod (64) is fixedly installed inside the column (61). A cross plate (65) is fixedly connected to the telescopic end of the second hydraulic rod (64).

7. A pressure vessel cylinder body hole-opening device according to claim 6, characterized in that, The tail ends of the two first springs (63) are elastically connected to two other connecting rods (62), and the two connecting rods (62) at the bottom are fixedly installed on the top of the bottom plate (1).

8. The opening device for a pressure vessel cylinder according to claim 6, wherein The opening component (7) includes a motor (71), the motor (71) is fixedly installed at the front end of the cross plate (65), an elastic piece (72) is movably sleeved on the outer edge of the output shaft of the motor (71), the bottom end of the output shaft of the motor (71) is fixedly connected to a drill bit (73), and a drill disc (74) is fixedly connected to the outer edge of the drill bit (73).

9. A pressure vessel cylinder body hole-opening device according to claim 7, characterized in that, The positioning component (8) includes two rubber pads (81), the two rubber pads (81) are installed on the top of the cylinder (5), short rods (82) are fixedly connected to the inner sides of the two rubber pads (81), arc-shaped rods (83) are inserted into the other ends of the short rods (82), the two ends of the two arc-shaped rods (83) are elastically connected to second springs (84), the two arc-shaped rods (83) and the two second springs (84) together form a ring, and a positioning block (85) is arc-shapedly sleeved on the outer edge of the ring.

10. A pressure vessel cylinder opening device according to claim 8, characterized in that, The elastic piece (72) is arranged in a cross shape and has an arc-shaped bottom surface, and can be embedded into the gaps adjacent to multiple positioning blocks (85).

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