A large-diameter industrial furnace tube cutting equipment

Abstract

The present invention discloses a large-diameter industrial furnace tube cutting device, specifically relating to a furnace tube cutting technical field, comprising a furnace tube transmission frame, furnace tube brackets being installed at intervals on the furnace tube transmission frame, a tube tail positioning device being installed at one end of the furnace tube transmission frame, and a tube head positioning device being installed at the other end of the furnace tube transmission frame. When the present invention is used, the cutting blade on the cutting assembly is adjusted by an adjusting assembly, so that the cutting blade always surrounds the furnace tube for cutting less than half a circle, and during the surrounding process of the cutting blade, the cutting blade on one group of cutting assemblies will extend to between the two groups of side guard plates on the other group of cutting assemblies, thereby completing overlapping cutting operations, and the cutting blade will perform reverse rotation adjustment under the adjustment of the adjusting assembly, thereby greatly reducing the range that the cutting blade needs to cut, greatly increasing the propulsion efficiency of the main control cylinder, and thereby effectively improving the cutting efficiency of the furnace tube.

Description

Technical Field

[0001] The invention relates to the technical field of furnace tube cutting, in particular to large-caliber industrial furnace tube cutting equipment. Background Art

[0002] Large-diameter industrial furnace tube cutting equipment is a key piece of equipment in the field of industrial furnace manufacturing and maintenance. It is primarily used for precise cutting of large furnace tubes in industries such as petrochemicals and metallurgy. Traditional equipment typically consists of a tube transfer rack, a positioning and clamping device, and a cutting mechanism.

[0003] When cutting a furnace tube, the cutting blade is usually moved around the furnace tube to complete the cutting. During the cutting operation, the cutting blade is usually cut around in the same direction. Usually, a cylinder is required to propel the cutting blade so that the cutting blade can penetrate deep into the furnace tube to complete the cutting.

[0004] However, this kind of circumferential cutting in the same direction needs to consider its advancement progress. Therefore, it is usually necessary to completely circle the furnace tube for one week before advancing. Otherwise, the cutting blade will not be able to effectively cut the furnace tube, which greatly reduces the cutting efficiency of the furnace tube. Therefore, the present invention provides a large-diameter industrial furnace tube cutting device to solve the above-mentioned problems. Summary of the Invention

[0005] The object of the present invention is to provide a large-diameter industrial furnace tube cutting device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A large-diameter industrial furnace tube cutting equipment comprises a furnace tube transmission frame, furnace tube brackets are installed at intervals on the furnace tube transmission frame, a tube tail positioning device is installed on one end of the furnace tube transmission frame, a tube head positioning device is installed on the other end of the furnace tube transmission frame, a cutting frame is installed on the end of the furnace tube transmission frame corresponding to the tube head positioning device, and a movable guide rail is installed on the cutting frame, which is characterized in that: a tube cutting device capable of annularly reciprocating cutting of the furnace tube is movably installed on the movable guide rail, the tube cutting device comprises a basic component, a cutting component, and an adjusting component capable of driving the cutting component to perform annular reciprocating cutting on the furnace tube, the basic component is movably installed on the movable guide rail, the cutting component is installed on both sides of the basic component, the two groups of cutting components are mirror-set, the adjusting component is installed on the basic component, and the adjusting component is located in the middle of the two groups of cutting components, away from the tube head positioning device, and the adjusting component and the two groups of cutting components are connected to each other.

[0008] As a further solution of the present invention, the basic component includes a base, a side bracket, a main control cylinder and a support plate. The base is movably mounted on a movable guide rail, the side bracket is fixedly mounted on both sides of the base, the main control cylinder is mounted on the side of the two groups of side brackets away from each other and corresponding to the cutting component position, and the output end of the main control cylinder slides through the corresponding position wall of the side bracket and is connected to the cutting component, the support plate is fixedly mounted on the side bracket at a position corresponding to the cutting component, and the adjustment component is mounted on the support plate.

[0009] As a further solution of the present invention, the cutting assembly includes side guard plates, movable grooves, cutting pieces and auxiliary adjustment shafts. The side guard plates are divided into two groups, and the two groups of side guard plates are spaced apart from each other. The cutting piece is arranged between the two groups of side guard plates. The movable grooves are opened on the side walls of the side guard plates. The movable grooves are arc-shaped grooves. The movable grooves slide through the side walls of the side guard plates. The auxiliary adjustment shafts are fixedly installed on the cutting pieces. The auxiliary adjustment shafts extend into the movable grooves away from one end of the cutting piece. The cutting piece is movably installed between the two groups of side guard plates through the movable grooves on both sides of the cutting piece, and the auxiliary adjustment shafts are movably installed on the adjustment assembly away from one end of the cutting piece.

[0010] As a further solution of the present invention, the cutting assembly also includes an associated plate, which is fixedly mounted on one end of the two sets of side guard plates close to the main control cylinder. The associated plate is a "U"-shaped plate. The two sets of spaced-apart side guard plates are connected through the "U"-shaped end of the associated plate. The associated plate is fixedly mounted on the output end of the main control cylinder at one end away from the side guard plates.

[0011] As a further solution of the present invention, the adjustment assembly includes an adjusting part and a movable shaft part, and the adjusting part and the movable shaft part are both installed on the support plate, wherein one end of the movable shaft part and the cutting assembly are movably connected to each other, and the movable shaft part and the adjusting part are movably connected to each other, and the adjusting parts on the two groups of adjustment assemblies are arranged relative to each other, wherein the adjusting parts on one group of adjustment assemblies are installed above the side wall of the support plate, and the adjusting parts on the other group of adjustment assemblies are installed below the side wall of the support plate.

[0012] As a further solution of the present invention, the adjusting part includes a lifting groove, a secondary control cylinder, a fixed plate, and a main adjusting shaft rod. The lifting groove is opened on the side wall of the support plate, and the secondary control cylinder is installed on the side wall of the support plate. The secondary control cylinder on one group of adjusting components is installed above the side wall of the support plate, and the adjusting components of another group are installed below the side wall of the support plate. The fixed plate is set in the middle position of the support plate, the output ends of the fixed plate and the secondary control cylinder are connected to each other, and the position of the fixed plate and the position of the lifting groove correspond to each other. The main adjusting shaft rod is fixedly installed on the side of the fixed plate close to the lifting groove, and the end of the main adjusting shaft rod away from the fixed plate passes through the lifting groove and is connected to the movable shaft part.

[0013] As a further solution of the present invention, the movable shaft comprises a rotary adjustment plate, a movable shaft, an auxiliary adjustment shaft block, an adjustment slot, a limit slot and a limit plate, the rotary adjustment plate is arranged on the side of the support plate away from the fixed plate, one end of the rotary adjustment plate corresponds to the position of the main adjustment shaft rod on the adjustment member, and the other end of the rotary adjustment plate corresponds to the cutting assembly, the movable shaft is fixedly mounted on the side wall of the rotary adjustment plate, the movable shaft slides away from one end of the rotary adjustment plate through the corresponding position wall surface of the support plate and is movably mounted on the support plate, the adjustment slot is opened on the side wall of the rotary adjustment plate According to the position of the main adjustment shaft rod, the adjustment groove is a strip groove, and the main adjustment shaft rod extends into the adjustment groove at one end away from the limit groove. The auxiliary adjustment shaft block is arranged on the position of the rotary adjustment plate at one end away from the adjustment groove, and the auxiliary adjustment shaft block and the cutting assembly are movably connected to each other. The limit groove is opened in the side wall of the rotary adjustment plate corresponding to the position on one side of the auxiliary adjustment shaft block. The limit plate is arranged in the limit groove, and the limit plate slides through the corresponding position wall of the rotary adjustment plate near one end of the auxiliary adjustment shaft block and is installed on the side wall of the auxiliary adjustment shaft block. The limit plate can be moved and adjusted on the limit groove.

[0014] As a further solution of the present invention, the cutting piece includes a main base block, a secondary base block, a cutting blade, a blade adjustment piece and a connecting piece. The main base block is arranged between two groups of side guard plates, and the auxiliary adjustment shaft rods are fixedly installed on both sides of the main base block. The main base block is movably installed in the movable groove between the two groups of side guard plates through the two groups of auxiliary adjustment shaft rods. The secondary base blocks are arranged at intervals along the two ends of the main base block, and the cutting blades are installed on the secondary base block and the main base block.

[0015] As a further solution of the present invention, the connecting member is installed between the secondary base block and the main base block and the two adjacent groups of secondary base blocks, and the secondary base block and the main base block and the two adjacent groups of secondary base blocks are movably connected to each other through the connecting member. The blade adjusting member is installed on the main base block at a position corresponding to the associated plate, and the blade adjusting member is located inside the associated plate. The two ends of the blade adjusting member are movably installed on the side wall of the group of secondary base blocks farthest from the main base block. The blade adjusting member can drive the group of secondary base blocks farthest from the main base block to be adjusted, thereby adjusting the curvature of the cutting member.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. When the present invention is used, the cutting blade on the cutting assembly is adjusted by the adjustment assembly so that the cutting blade always circles the furnace tube to cut less than half a circle. In the process of the cutting blade circling, the cutting blade on one set of cutting assemblies will extend between the two sets of side guard plates on the other set of cutting assemblies, thereby completing the overlapping cutting operation. The cutting blade will be adjusted in the opposite direction under the adjustment of the adjustment assembly, thereby greatly reducing the range that the cutting blade needs to cut, greatly increasing the propulsion efficiency of the main control cylinder, and thus effectively improving the cutting efficiency of the furnace tube.

[0018] 2. When the present invention is used, the main base block and the secondary base block are arranged at intervals, so that the cutting blades on the main base block and the secondary base block can be pushed forward separately during the circumferential cutting operation, and the cutting blades on the two sets of cutting assemblies can perform overlapping cutting operations. Therefore, in the reverse operation, it can effectively avoid the accumulation of waste materials caused by unidirectional circumferential cutting. The main base block and the secondary base block are arranged at intervals, and the cutting blades capable of overlapping cutting can effectively push the accumulated waste materials in the reverse direction during the reverse operation, thereby causing the accumulated waste materials to break and separate due to the blade push, greatly reducing the occurrence of insufficient cutting strength of the cutting blades due to excessive accumulation of waste materials.

[0019] 3. When the present invention is in use, the telescopic device inside the telescopic device box controls the two sets of telescopic rods to adjust adaptively. Under the fixed length of the push-adjusting rods and the restriction of the outer wall of the furnace tube, the cutting edges on the main base block and some of the secondary base blocks are adjusted adaptively and fit on the outer wall of the furnace tube, thereby completing the adaptive tube diameter adjustment and cutting operation;

[0020] 4. When the present invention is used, due to the adjustment of the sub-base blocks, the cutting edges on some sub-base blocks will not fit the outer wall of the furnace tube. However, with the advancement control of the main control cylinder, the cutting edges on these sub-base blocks will gradually fit the outer wall of the furnace tube, thereby effectively pre-cutting the cutting groove on the outer wall of the furnace tube during the cutting operation, forming a sloped cutting condition, which makes it easier to cut the furnace tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a large-diameter industrial furnace tube cutting equipment.

[0022] Figure 2 for Figure 1 Schematic diagram of the locally enlarged structure at point A in the middle.

[0023] Figure 3 This is a schematic diagram of the partial structure of a tube cutting device in a large-diameter industrial furnace tube cutting equipment.

[0024] Figure 4 This is a schematic diagram of the partial structure of the adjustment component in a large-diameter industrial furnace tube cutting device.

[0025] Figure 5 This is a schematic diagram of the partial structure of the cutting parts in a large-diameter industrial furnace tube cutting device.

[0026] Figure 6 for Figure 5 Schematic diagram of the local enlarged structure at point B in the middle.

[0027] Figure 7 This is a schematic diagram of the partial structure of a connecting piece in a large-diameter industrial furnace tube cutting device.

[0028] In the figure: 1. furnace tube transmission rack; 2. furnace tube bracket; 3. tube tail positioning device; 4. tube head positioning device; 5. cutting rack; 6. movable guide rail; 7. base; 8. side bracket; 9. main control cylinder; 10. associated plate; 11. side guard plate; 12. support plate; 13. rotary adjustment plate; 14. lifting slot; 15. secondary control cylinder; 16. fixed plate; 17. movable shaft; 18. auxiliary adjustment shaft block; 19. auxiliary adjustment shaft rod; 20. main base block; 21. secondary base block; 22. push adjustment rod; 23. movable slot; 24. adjustment slot; 25. main adjustment shaft rod; 26. limit slot; 27. limit plate; 28. cutting edge; 29. ​​telescopic equipment box; 30. telescopic slot; 31. telescopic rod; 32. rotary adjustment slot; 33. rotary adjustment block; 34. movable hole; 35. fixed shaft. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1-Figure 7 In an embodiment of the present invention, a large-diameter industrial furnace tube cutting device includes a furnace tube transmission frame 1, and furnace tube brackets 2 are installed at intervals on the furnace tube transmission frame 1. The furnace tube brackets 2 can limit the furnace tube to prevent the furnace tube from falling due to rolling characteristics after being placed on the furnace tube transmission frame 1. A tube tail positioning device 3 is installed at one end of the furnace tube transmission frame 1. The output end of the tube tail positioning device 3 can support the inner wall of the furnace tube by telescopic movement. The tube tail positioning device 3 is a publicly available technology and will not be described in detail here. Specifically, the tube tail positioning device 3 includes but is not limited to a four-claw chuck internal support device, thereby completing the internal support fixation of the tube tail of the furnace tube. The other end of the furnace tube transmission frame 1 A tube head positioning device 4 is installed, and the output end of the tube head positioning device 4 can clamp the outer wall of the furnace tube by telescopic movement. The tube head positioning device 4 is a publicly available technology and will not be described in detail here. Specifically, the tube head positioning device 4 includes but is not limited to a telescopic hydraulic clamp, which can clamp and fix the two ends of the furnace tube through the tube tail positioning device 3 and the tube head positioning device 4, and the furnace tube bracket 2 is located between the tube tail positioning device 3 and the tube head positioning device 4. A cutting frame 5 is installed at one end of the furnace tube transmission frame 1 corresponding to the tube head positioning device 4, and a movable guide rail 6 is installed on the cutting frame 5. A tube cutting device is movably installed on the movable guide rail 6, and the tube cutting device can cut the furnace tube in a circular reciprocating manner.

[0031] The pipe cutting device includes a basic component, a cutting component, and an adjusting component. The basic component is movably installed on the movable guide rail 6. The basic component can be reciprocated and adjusted on the movable guide rail 6. The cutting components are installed on both sides of the basic component. The two groups of cutting components are mirror-set. The adjusting component is installed on the basic component. There are two groups of adjusting components. The two groups of adjusting components are respectively installed on the positions of the cutting components on the basic component. Through the adjustment operation of the adjusting component, the cutting component can perform circular reciprocating cutting operations on the furnace tube.

[0032] The basic components include a base 7, a side bracket 8, a main control cylinder 9 and a support plate 12. The base 7 is movably mounted on the movable guide rail 6, and the side bracket 8 is fixedly mounted on both sides of the base 7. The main control cylinder 9 is a publicly available technology and will not be described in detail here. The main control cylinder 9 is installed on the side of the two groups of side brackets 8 away from each other, corresponding to the position of the cutting assembly, and the output end of the main control cylinder 9 slides through the corresponding position wall of the side bracket 8 and is connected to the cutting assembly. The main control cylinder 9 on the two groups of side brackets 8 can control the two groups of cutting assemblies to move closer to or away from each other. The support plate 12 is fixedly mounted on the side bracket 8 at the position corresponding to the cutting assembly, and the adjustment assembly is mounted on the support plate 12.

[0033] The cutting assembly includes an associated plate 10, a side guard plate 11, a movable groove 23, a cutting piece and an auxiliary adjustment shaft rod 19. The side guard plate 11 is an arc-shaped plate. The side guard plate 11 is two groups. The two groups of side guard plates 11 are spaced apart from each other. The associated plate 10 is fixedly mounted on one end of the two groups of side guard plates 11 close to the main control cylinder 9. The associated plate 10 is a "U"-shaped plate. The two groups of spaced side guard plates 11 are connected by the "U"-shaped end of the associated plate 10. The end of the associated plate 10 away from the side guard plate 11 is fixedly mounted on the output end of the main control cylinder 9. The cutting piece is arranged between the two groups of side guard plates 11. The movable groove 23 is opened on the side wall of the side guard plate 11. The movable groove 23 is an arc The movable groove 23 slides through the side walls of both sides of the side guard plate 11, and the auxiliary adjustment shaft rod 19 is fixedly installed on the cutting piece. The auxiliary adjustment shaft rod 19 extends into the movable groove 23 at one end away from the cutting piece. The cutting piece is movably installed between the two sets of side guard plates 11 through the movable grooves 23 on both sides of the cutting piece, and the auxiliary adjustment shaft rod 19 is movably installed on the adjustment component at one end away from the cutting piece. The auxiliary adjustment shaft rod 19 is movably adjusted in the movable groove 23 through the adjustment of the adjustment component. Through the arc-shaped movable groove 23, the auxiliary adjustment shaft rod 19 can drive the cutting piece to move in a ring shape when it moves in the movable groove 23, so that the furnace tube can be cut in a ring shape.

[0034] Furthermore, when the cutting pieces on the two cutting assemblies move in a circular shape, one end of the cutting piece on one cutting assembly will move between the two sets of side guard plates 11 on the other cutting assembly, thereby effectively completing the overlapping cutting and completely cutting the furnace tube.

[0035] The adjusting assembly includes an adjusting part and a movable shaft part, both of which are installed on the support plate 12, wherein one end of the movable shaft part and the cutting assembly are movably connected to each other, specifically, one end of the movable shaft part and the auxiliary adjustment shaft rod 19 are movably connected to each other, the movable shaft part and the adjusting part are movably connected to each other, and the adjusting parts on the two groups of adjusting assemblies are arranged relative to each other, wherein the adjusting parts on one group of adjusting assemblies are installed above the side wall of the support plate 12, and the adjusting parts on the other group of adjusting assemblies are installed below the side wall of the support plate 12, and the two groups of adjusting parts are synchronously adjusted toward each other.

[0036] The adjusting parts include a lifting groove 14, a secondary control cylinder 15, a fixed plate 16, and a main adjusting shaft rod 25. The lifting groove 14 is opened on the side wall of the support plate 12, and the secondary control cylinder 15 is installed on the side wall of the support plate 12. The secondary control cylinder 15 on one group of adjusting components is installed above the side wall of the support plate 12, and the adjusting components of another group are installed below the side wall of the support plate 12. The fixed plate 16 is set in the middle position of the support plate 12. The output ends of the fixed plate 16 and the secondary control cylinder 15 are connected to each other, and the position of the fixed plate 16 corresponds to the position of the lifting groove 14. The main adjusting shaft rod 25 is fixedly installed on the fixed plate 16 close to the lifting groove 14. The end of the main adjusting shaft rod 25 away from the fixed plate 16 passes through the lifting groove 14 and is connected to the movable shaft.

[0037] The movable shaft comprises a rotary adjustment plate 13, a movable shaft 17, an auxiliary adjustment shaft block 18, an adjustment slot 24, a limit slot 26 and a limit plate 27. The rotary adjustment plate 13 is arranged on the side of the support plate 12 away from the fixed plate 16. One end of the rotary adjustment plate 13 corresponds to the position of the main adjustment shaft rod 25 on the adjustment member, and the other end of the rotary adjustment plate 13 corresponds to the cutting assembly. The movable shaft 17 is fixedly mounted on the side wall of the rotary adjustment plate 13. The movable shaft 17 slides through the corresponding position wall of the support plate 12 away from one end of the rotary adjustment plate 13 and is movably mounted on the support plate 12. The rotary adjustment plate 13 can be rotated on the support plate 12 with the rotary adjustment plate 13 as the axis through the movable shaft 17. The adjusting slot 24 is opened on the side wall of the rotary adjustment plate 13 corresponding to the position of the main adjustment shaft rod 25. The adjusting slot 24 is a strip-shaped groove, and the main adjustment shaft rod 25 extends into the adjustment groove 24 at one end away from the limit groove 26. The auxiliary adjustment shaft block 18 is arranged at the end of the rotary adjustment plate 13 away from the adjustment groove 24, and the auxiliary adjustment shaft block 18 and the cutting assembly are movably connected to each other. Specifically, the auxiliary adjustment shaft rod 19 slides through the corresponding position wall of the auxiliary adjustment shaft block 18 at one end away from the cutting piece, and is movably installed on the auxiliary adjustment shaft block 18. The limit groove 26 is opened in the side wall of the rotary adjustment plate 13 at a position corresponding to one side of the auxiliary adjustment shaft block 18. The limit plate 27 is arranged in the limit groove 26. The limit plate 27 slides through the corresponding position wall of the rotary adjustment plate 13 close to the end of the auxiliary adjustment shaft block 18 and is installed on the side wall of the auxiliary adjustment shaft block 18. The limit plate 27 can be moved and adjusted on the limit groove 26.

[0038] Through the limiting groove 26 on the rotary adjustment plate 13 and the limiting plate 27 on the auxiliary adjustment shaft block 18 , the auxiliary adjustment shaft rod 19 can drive the auxiliary adjustment shaft block 18 to perform adaptive telescopic adjustment on the rotary adjustment plate 13 when moving on the movable groove 23 .

[0039] By activating two groups of secondary control cylinders 15, the fixed plate 16 is telescopically adjusted on the support plate 12, and one group of fixed plates 16 moves upward or downward on the support plate 12, and the other group of fixed plates 16 moves upward or downward on the support plate 12, so that the main adjustment shaft rod 25 can drive the rotary adjustment plate 13 to rotate and adjust with the movable shaft 17 as the axis. Since the moving directions of the two groups of fixed plates 16 are different, the two groups of rotary adjustment plates 13 will produce adjustments in different directions away from one end of the fixed plate 16, and one group of rotary adjustment plates 13 will drive the auxiliary adjustment shaft block 18 to adjust upward, and the other group of rotary adjustment plates 13 will drive the auxiliary adjustment shaft block 18 to adjust downward, thereby driving the cutting assembly to perform axial rotation in the same direction.

[0040] The cutting piece includes a main base block 20, a secondary base block 21, a cutting blade 28, a blade adjustment piece and a connecting piece. The main base block 20 is arranged between the two sets of side guard plates 11, and the auxiliary adjustment shaft rods 19 are fixedly installed on both sides of the main base block 20. The main base block 20 is movably installed in the movable groove 23 between the two sets of side guard plates 11 through the two sets of auxiliary adjustment shaft rods 19. The secondary base blocks 21 are spaced along the two ends of the main base block 20. The connecting piece is installed between the secondary base block 21 and the main base block 20 and the two adjacent sets of secondary base blocks 21. The secondary base block 21 and the main base block 20 are movably connected to each other through the connecting piece, and the secondary base block 21 can be rotated and adjusted on the main base block 20 and the adjacent set of secondary base blocks 21. The cutting blade 28 is installed on the secondary base block 2 1 and the main base block 20, the inner diameter curvature of the cutting piece can be effectively changed by the sub-base block 21 that can be movably adjusted on the main base block 20, so that furnace tubes of different specifications can be cut. The blade adjusting piece is installed on the main base block 20 at a position corresponding to the associated plate 10, and the blade adjusting piece is located inside the associated plate 10. The two ends of the blade adjusting piece are movably installed on the side walls of the group of sub-base blocks 21 farthest from the main base block 20. The blade adjusting piece can drive the group of sub-base blocks 21 farthest from the main base block 20 to be adjusted. Through the movable connection between the two adjacent groups of sub-base blocks 21, the remaining sub-base blocks 21 can be driven to be adaptively adjusted, thereby changing the curvature formed by the main base block 20 and the sub-base blocks 21.

[0041] The blade adjusting part includes a push-adjusting rod 22, a telescopic device box 29, a telescopic slot 30 and a telescopic rod 31. A telescopic device is provided inside the telescopic device box 29. The telescopic slot 30 is opened at the upper and lower ends of the telescopic device box 29. The telescopic slot 30 passes through the corresponding position wall of the telescopic device box 29 and is interconnected with the interior of the telescopic device box 29. The telescopic rod 31 is fixedly installed on the output end of the telescopic device inside the telescopic device box 29. The end of the telescopic rod 31 away from the interior of the telescopic device box 29 extends to the outside of the telescopic device box 29 through the telescopic slot 30. The push-adjusting rod 22 is arranged between the telescopic device box 29 and a group of secondary base blocks 21 farthest from the main base block 20. The two ends of the push-adjusting rod 22 are respectively movably mounted on the telescopic slot 30 and the secondary base block 21. The two ends of the push-adjusting rod 22 can be movably adjusted on the telescopic rod 31 and the secondary base block 21.

[0042] The telescopic slot 30 is controlled to be telescopically adjusted through the telescopic device inside the telescopic equipment box 29, so that the telescopic slot 30 drives one end of the push-adjusting rod 22 to move adaptively. Due to the fixed length limit of the push-adjusting rod 22, the other end of the push-adjusting rod 22 will push or pull the secondary base block 21 farthest from the main base block 20 to move adaptively, thereby completing the curvature change adjustment formed by the main base block 20 and the secondary base block 21.

[0043] By arranging the telescopic device box 29 on the inner side of the associated plate 10, the adjustment and cutting operations of the cutting piece are not negatively affected by the propulsion operation of the main control cylinder 9. At the same time, it can also effectively cooperate with the propulsion operation of the main control cylinder 9 to complete the cutting operation of the furnace tube.

[0044] The connecting part includes a rotary adjustment groove 32, a rotary adjustment block 33, a movable hole 34 and a fixed shaft 35. The rotary adjustment groove 32 is opened on the side walls at both ends of the main base block 20 and on the side wall of the secondary base block 21 away from the main base block 20. The rotary adjustment block 33 is fixedly installed on the side wall of the secondary base block 21 close to the main base block 20, and the positions of the rotary adjustment block 33 and the rotary adjustment groove 32 correspond to each other. The movable hole 34 is opened on the side wall of the rotary adjustment block 33 close to the inner side of the rotary adjustment groove 32. The fixed shaft 35 is fixedly installed inside the rotary adjustment groove 32. The rotary adjustment block 33 is movably installed on the movable hole 34 through the fixed shaft 35. The secondary base block 21 can be rotated and adjusted in the rotary adjustment groove 32 on the main base block 20 through the rotary adjustment block 33.

[0045] The working principle of the present invention is:

[0046] When the present invention is used, the furnace tube to be cut is placed in the furnace tube bracket 2 on the furnace tube transmission frame 1, and the two ends of the furnace tube are fixed by the tube tail positioning device 3 and the tube head positioning device 4. The tube cutting device is controlled to move to the specified position on the movable guide rail 6, and the main control cylinder 9 on the two sets of side brackets 8 is started to control the two sets of cutting assemblies to move toward the side close to the furnace tube so that the cutting blade 28 on the cutting assembly is in contact with the side wall of the furnace tube. The secondary control cylinder 15 on the two sets of support plates 12 is started to drive the fixing plates 16 at the corresponding positions to perform telescopic movement adjustment, and the adjusting slot 24 is used to adjust the cutting edge 28 of the cutting assembly to the side wall of the furnace tube. The main adjustment shaft 25 inside cooperates with the retractable auxiliary adjustment shaft block 18 and the auxiliary adjustment shaft 19 on the cutting piece, so that the rotary adjustment plate 13 rotates with the movable shaft 17 as the axis, which can effectively drive the cutting piece to rotate between the two sets of side guard plates 11, and cooperate with the propulsion operation of the main control cylinder 9 to effectively cut the furnace tube. At the same time, the cutting pieces on the two sets of cutting assemblies are adjusted by the rotation of the rotary adjustment plate 13, so that one end of one set of cutting pieces will move to between the other two sets of side guard plates 11, thereby effectively completing the overlapping cutting operation and enabling the furnace tube to complete effective and complete cutting.

[0047] When it is necessary to adjust the cutting according to the diameter of the furnace tube, the telescopic device inside the telescopic device box 29 will control the two sets of telescopic rods 31 to make adaptive adjustments. Under the fixed length of the push-adjustment rod 22 and the restriction of the outer wall of the furnace tube, the cutting blades 28 on the main base block 20 and part of the secondary base block 21 will be adapted and adjusted and fit on the outer wall of the furnace tube, thereby completing the adaptive tube diameter adjustment cutting operation. At the same time, affected by the adjustment of the secondary base block 21, the cutting blades 28 on part of the secondary base block 21 will not fit the outer wall of the furnace tube. However, with the advancement control of the main control cylinder 9, the cutting blades 28 on this part of the secondary base block 21 will gradually fit the outer wall of the furnace tube, so that the cutting groove on the outer wall of the furnace tube can be effectively pre-cut during the cutting operation, forming a sloped cutting condition, which can make it easier to cut the furnace tube.

[0048] The above are only preferred specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention within the technical scope described in the present invention, and they should be covered by the scope of protection of the present invention.

Claims

1. A large-diameter industrial furnace tube cutting device, comprising a furnace tube transmission frame (1), furnace tube brackets (2) are installed on the furnace tube transmission frame (1) at intervals, a tube tail positioning device (3) is installed on one end of the furnace tube transmission frame (1), a tube head positioning device (4) is installed on the other end of the furnace tube transmission frame (1), a cutting frame (5) is installed on the end of the furnace tube transmission frame (1) corresponding to the tube head positioning device (4), and a movable guide rail (6) is installed on the cutting frame (5), characterized in that: A pipe cutting device capable of circularly reciprocating cutting of the furnace tube is movably mounted on the movable guide rail (6), the pipe cutting device comprising a base assembly, a cutting assembly, and an adjusting assembly capable of driving the cutting assembly to perform circularly reciprocating cutting on the furnace tube. The base assembly is movably mounted on the movable guide rail (6), the cutting assembly is mounted on both sides of the base assembly, and the two groups of cutting assemblies are arranged in a mirror image. The adjusting assembly is mounted on the base assembly, and the adjusting assembly is located between the two groups of cutting assemblies and at a position away from the tube head positioning device (4). The adjusting assembly and the two groups of cutting assemblies are connected to each other. The basic assembly comprises a base (7), a side bracket (8), a main control cylinder (9) and a support plate (12), wherein the base (7) is movably mounted on the movable guide rail (6), the side bracket (8) is fixedly mounted on both sides of the base (7), the main control cylinder (9) is mounted on the side of the two sets of side brackets (8) away from each other and corresponding to the position of the cutting assembly, and the output end of the main control cylinder (9) slides through the corresponding position wall of the side bracket (8) and is connected to the cutting assembly, the support plate (12) is fixedly mounted on the side bracket (8) at the position corresponding to the cutting assembly, and the adjustment assembly is mounted on the support plate (12); The cutting assembly comprises a side guard plate (11), a movable groove (23), a cutting piece and an auxiliary adjustment shaft rod (19), the side guard plates (11) are divided into two groups, the two groups of side guard plates (11) are spaced apart from each other, the cutting piece is arranged between the two groups of side guard plates (11), the movable groove (23) is opened on the side wall of the side guard plate (11), the movable groove (23) is an arc-shaped groove, and the movable groove (23) slides through the side walls of the side guard plates (11), the auxiliary adjustment shaft rod (19) is fixedly installed on the cutting piece, the auxiliary adjustment shaft rod (19) extends from one end of the cutting piece to the movable groove (23), and the cutting piece is movably installed between the two groups of side guard plates (11) through the movable grooves (23) on both sides of the cutting piece, and the auxiliary adjustment shaft rod (19) is movably installed on the adjustment assembly from one end of the cutting piece; The cutting assembly further comprises an associated plate (10), wherein the associated plate (10) is fixedly mounted on one end of the two sets of side guard plates (11) close to the main control cylinder (9), the associated plate (10) is in the shape of a "U"-shaped plate, the two sets of spaced-apart side guard plates (11) are connected via the "U"-shaped end of the associated plate (10), and the end of the associated plate (10) away from the side guard plates (11) is fixedly mounted on the output end of the main control cylinder (9).

2. The large-diameter industrial furnace tube cutting equipment according to claim 1, characterized in that: The adjusting assembly comprises an adjusting member and a movable shaft member, and the adjusting member and the movable shaft member are both mounted on the support plate (12), wherein one end of the movable shaft member and the cutting assembly are movably connected to each other, and the movable shaft member and the adjusting member are movably connected to each other, and the adjusting members on the two groups of adjusting assemblies are arranged relative to each other, wherein the adjusting members on one group of adjusting assemblies are mounted above the side wall of the support plate (12), and the adjusting members on the other group of adjusting assemblies are mounted below the side wall of the support plate (12).

3. The large-diameter industrial furnace tube cutting equipment according to claim 2, characterized in that: The adjusting component includes a lifting groove (14), a secondary control cylinder (15), a fixed plate (16), and a main adjustment shaft rod (25). The lifting groove (14) is opened on the side wall of the support plate (12), and the secondary control cylinder (15) is installed on the side wall of the support plate (12). The secondary control cylinder (15) on one group of adjusting components is installed at a position above the side wall of the support plate (12), and the adjusting components of another group are installed at a position below the side wall of the support plate (12). The fixed plate (16) is set at a middle position of the support plate (12). The output ends of the fixed plate (16) and the secondary control cylinder (15) are connected to each other, and the position of the fixed plate (16) corresponds to the position of the lifting groove (14). The main adjustment shaft rod (25) is fixedly installed on the side of the fixed plate (16) close to the lifting groove (14). The end of the main adjustment shaft rod (25) away from the fixed plate (16) passes through the lifting groove (14) and is connected to the movable shaft component.

4. The large-diameter industrial furnace tube cutting equipment according to claim 3, characterized in that: The movable shaft member includes a rotary adjustment plate (13), a movable shaft (17), an auxiliary adjustment shaft block (18), an adjustment slot (24), a limit slot (26) and a limit plate (27). The rotary adjustment plate (13) is arranged on the side of the support plate (12) away from the fixed plate (16). One end of the rotary adjustment plate (13) corresponds to the position of the main adjustment shaft rod (25) on the adjustment member, and the other end of the rotary adjustment plate (13) corresponds to the cutting assembly. The movable shaft (17) is fixedly installed on the side wall of the rotary adjustment plate (13). The end of the movable shaft (17) away from the rotary adjustment plate (13) slides through the corresponding position wall of the support plate (12) and is movably installed on the support plate (12). The adjustment slot (24) is opened on the side wall of the rotary adjustment plate (13) corresponding to the main adjustment shaft rod ( 25) position, the adjustment groove (24) is a strip groove, the main adjustment shaft rod (25) extends from one end of the limiting groove (26) to the adjustment groove (24), the auxiliary adjustment shaft block (18) is arranged at the position of the rotary adjustment plate (13) at one end away from the adjustment groove (24), and the auxiliary adjustment shaft block (18) and the cutting assembly are movably connected to each other, the limiting groove (26) is opened in the side wall of the rotary adjustment plate (13) at a position corresponding to one side of the auxiliary adjustment shaft block (18), the limiting plate (27) is arranged in the limiting groove (26), the limiting plate (27) slides close to one end of the auxiliary adjustment shaft block (18) through the corresponding position wall of the rotary adjustment plate (13) and is installed on the side wall of the auxiliary adjustment shaft block (18), and the limiting plate (27) can be moved and adjusted on the limiting groove (26).

5. The large-diameter industrial furnace tube cutting equipment according to claim 1, characterized in that: The cutting member comprises a main base block (20), a secondary base block (21), a cutting blade (28), a blade adjustment member and a connecting member. The main base block (20) is arranged between two sets of side guard plates (11), and the auxiliary adjustment shaft rods (19) are fixedly installed on both sides of the main base block (20). The main base block (20) is movably installed in the movable groove (23) between the two sets of side guard plates (11) through the two sets of auxiliary adjustment shaft rods (19). The secondary base blocks (21) are arranged at intervals along the two ends of the main base block (20), and the cutting blades (28) are installed on the secondary base block (21) and the main base block (20).

6. The large-diameter industrial furnace tube cutting equipment according to claim 5, characterized in that: The connecting member is installed between the secondary base block (21) and the main base block (20) and the two adjacent groups of secondary base blocks (21), and the secondary base block (21) and the main base block (20) and the two adjacent groups of secondary base blocks (21) are movably connected to each other through the connecting member. The blade adjusting member is installed on the main base block (20) at a position corresponding to the associated plate (10), and the blade adjusting member is located inside the associated plate (10). Both ends of the blade adjusting member are movably installed on the side wall of the group of secondary base blocks (21) farthest from the main base block (20). The blade adjusting member can drive the group of secondary base blocks (21) farthest from the main base block (20) to be adjusted, thereby adjusting the curvature of the cutting member.

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