Automatic cutting equipment for tube bundle of shell-and-tube heat exchanger

Abstract

The invention belongs to the technical field of shell-and-tube heat exchangers, and discloses shell-and-tube heat exchanger tube bundle automatic cutting equipment which comprises a bottom plate and a connecting tube, a linkage mechanism is arranged at the top of the bottom plate, a clamping mechanism is arranged on one side of the connecting tube, and a telescopic mechanism is arranged on one side of the bottom plate and located above the linkage mechanism; the linkage mechanism comprises a first sliding groove, a first two-way screw, a first cone pulley, a second sliding groove, a second cone pulley, a rotating rod and a third cone pulley. The clamping mechanism comprises a fixing pipe, a connecting pipe, a rotating shaft, a sliding rod, a first tooth groove, a first gear, a second gear, a limiting block, a clamping plate, a U-shaped block, a rotating ring and a second tooth groove. According to the pipe bundle cutting device, the clamping mechanisms can be close to each other through the linkage mechanism, so that the clamping mechanisms can clamp and fix the pipe bundle according to the length of the shell-and-tube heat exchanger, cutting equipment can be driven to cut a pipe bundle through the telescopic structure, and actual application and operation are facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of shell and tube heat exchangers, in particular to an automatic tube bundle cutting device for shell and tube heat exchangers. Background Art

[0002] The development history of shell and tube heat exchangers can be traced back to the early 19th century, when the industry was in urgent need of effective heat exchange equipment to improve production efficiency. Its initial design was simple, mainly consisting of a tube bundle, a shell and tube sheets at both ends.

[0003] In the actual application of existing equipment, workers are usually required to cut around the shell and tube heat exchanger during the tube bundle cutting process, resulting in uneven cutting of each tube bundle, which affects subsequent processing. In addition, the clamping method is relatively traditional, resulting in uncertain factors such as shaking during the cutting process, which is not conducive to actual application and operation. Summary of the invention

[0004] One of the objects of the present invention is to provide an automatic tube bundle cutting device for a shell and tube heat exchanger.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is: an automatic cutting device for tube bundles of shell and tube heat exchangers, comprising a bottom plate and a connecting pipe: a linkage mechanism is provided on the top of the bottom plate, a clamping mechanism is provided on one side of the connecting pipe, and a telescopic mechanism is provided on one side of the bottom plate and above the linkage mechanism; The linkage mechanism includes a first slide groove, a first bidirectional screw, a first cone wheel, a second slide groove, a second cone wheel, a rotating rod, and a third cone wheel; the clamping mechanism includes a fixed tube, a connecting tube, a rotating shaft, a sliding rod, a first tooth groove, a first gear, a second gear, a limit block, a clamping plate, a U-shaped block, a rotating ring, and a second tooth groove; the telescopic mechanism includes a connecting box, a threaded rod, a moving column, a U-shaped column, a second bidirectional screw, a second threaded block, a connecting rod, a connecting plate, and a cutting knife; The top of the base is provided with two first sliding grooves, and the inside of the first sliding grooves is rotatably connected to the first bidirectional screw, the outer side of the first bidirectional screw is threadedly connected to the two first threaded blocks, and the top of the corresponding two first threaded blocks is fixedly connected to the base. The top of the base is provided with a T-slot, and the outer side of the connecting tube is fixedly connected to the T-ring, and the T-ring is slidably connected to the corresponding T-slot. One side of the connecting tube is fixedly connected to a fixing tube, the outer side of the fixing tube is fixedly connected to a connecting ring, and the outer side of the fixing tube is equidistantly slidably connected to a sliding rod, one end of the sliding rod extends to the inside of the fixing tube and is fixedly connected to a clamping plate, and a rotating shaft is rotatably connected between the connecting ring and the connecting tube and located on one side of the sliding rod, and the outer side of the rotating shaft is fixedly connected to a first gear, and the outer side of the sliding rod is equidistantly provided with first tooth grooves, and the first gear is meshed with the first tooth groove, and one end of the sliding rod and one end away from the clamping plate are fixedly connected to a limiting block.

[0006] Preferably, U-shaped blocks are fixedly connected to the outer side of the fixed tube at equal intervals, a rotating ring is slidably connected between the multiple U-shaped blocks, the inner wall of the rotating ring is evenly spaced with second tooth grooves, the outer side of the rotating shaft and one side of the first gear is fixedly connected with a second gear, and the second gear is meshingly connected with the second tooth groove.

[0007] Preferably, the outer side of the base is rotatably connected with a linkage shaft, a square rod is slidably connected between the two linkage shafts, one end of the linkage shaft and located on the outer side of the square rod is fixedly connected with a third gear, the outer side of the connecting pipe is equidistantly provided with third tooth grooves, the third gears are meshingly connected with the third tooth grooves, both sides of the top of the base plate are fixedly connected with fixing plates, the fixing plates are rotatably connected to the square rods, one side of one of the fixing plates is fixedly connected with a first servo motor, and the output shaft of the first servo motor is fixedly connected to the square rod.

[0008] Preferably, one side of the base plate is fixedly connected to a connecting box, the interior of the connecting box is rotatably connected to a threaded rod, the outer side of the threaded rod is threadedly connected to a movable column, one side of the movable column is fixedly connected to a U-shaped column, the inner wall of the U-shaped column is rotatably connected to a second bidirectional screw, the outer side of the second bidirectional screw is threadedly connected to a second threaded block, the bottom of the second threaded block is rotatably connected to a connecting rod, a connecting plate is rotatably connected between the two connecting rods, and the bottom of the connecting plate is fixedly connected to a cutting knife.

[0009] Preferably, a second slide groove is provided at the top of the base plate and between the two first slide grooves, a rotating rod is rotatably connected inside the second slide groove, both ends of the rotating rod extend to the inside of the corresponding first slide groove and are fixedly connected to a second conical wheel, and the outer side of the first bidirectional screw is fixedly connected to the first conical wheel.

[0010] Preferably, a turntable is rotatably connected to the outer side of the bottom plate, an output shaft of the turntable extends to the inside of the first sliding groove and is fixedly connected to a third cone wheel, and the third cone wheel is meshingly connected to the first cone wheel.

[0011] Preferably, a third servo motor is fixedly connected to the outer side of the connecting box, and the output shaft of the third servo motor is fixedly connected to the threaded rod. A second servo motor is fixedly connected to the outer side of the U-shaped column, and the output shaft of the second servo motor is fixedly connected to the second bidirectional screw.

[0012] Compared with the prior art, the present invention has the following beneficial effects: (1) The clamping mechanism of the present invention can clamp and fix the shell and tube heat exchanger according to the length, which means that it can be applied to heat exchangers of various specifications and lengths. When facing the task of cutting tube bundles of different sizes, it can be flexibly adjusted to ensure the smooth progress of cutting work. The cutting equipment is driven by the telescopic structure to cut the tube bundle. Such a design is conducive to accurately controlling the cutting action, improving the cutting accuracy, reducing the additional damage to the tube bundle caused by inaccurate operation, and improving the cutting quality. The bottom plate is provided with a first slide groove and a first bidirectional screw. The distance between the two bases can be adjusted by rotating the first bidirectional screw. This adjustment method is simple and efficient. The position of the cutting device can be quickly adjusted according to the specific position and length of the tube bundle, so as to better perform the cutting work. The connecting pipe is slidably connected to the T-slot of the base through a T-ring, which ensures the stability of the connecting pipe sliding within a certain range. At the same time, the fixed pipe on one side of the connecting pipe can clamp the internal object through a special rotating shaft, gear and sliding rod structure. During the cutting process, the tube bundle can be effectively fixed to prevent it from shaking, and due to its flexible structure, it is also convenient for the installation and removal of the tube bundle.

[0013] (2) The present invention adopts an ingenious gear meshing connection design between the rotating shaft and the rotating ring (the second gear on the rotating shaft meshes with the second tooth groove on the inner wall of the rotating ring), so that when the rotating shaft is subjected to a rotation operation, the rotating ring can be accurately driven to slide and rotate within the limited range of the U-shaped block, and all the rotating shafts can be rotated synchronously. This coordinated control mechanism helps to coordinate the various related components according to the predetermined and precise actions during the tube bundle cutting process, ensuring the accuracy and stability of the cutting operation, such as ensuring that the cutting angle and force of the cutting tool on the tube bundle remain consistent, thereby improving the cutting quality. The multiple U-shaped blocks fixed at equal distances on the outside of the fixed tube provide stable support and accurate guiding for the rotating ring. When the rotating ring rotates around the fixed tube, its motion trajectory is more standardized and stable, avoiding the unstable situation such as deviation and shaking of the rotating ring during the rotation process. In the tube bundle cutting scenario, this helps to maintain the stability of the entire cutting device, prevent the shaking of the cutting components connected to it due to the instability of the rotating ring, thereby affecting the accuracy and effect of the tube bundle cutting, and ensure that the cutting work can be carried out smoothly and efficiently.

[0014] (3) The present invention can drive the square rod to rotate through the operation of the first servo motor. During the rotation of the square rod, the linkage shaft can be driven to rotate, and the surface of the linkage shaft is slidably connected to the surface of the square rod, so that when the base moves, the square rod will not affect the rotation of the linkage shaft. During the rotation of the linkage shaft, the third gear can be driven to rotate, so that it can be engaged with the third tooth groove, thereby driving the connecting pipe to rotate. By rotating the threaded rod, the moving column can drive the U-shaped column to move. When the U-shaped column reaches the predetermined position, the second bidirectional screw rod is rotated to enable the connecting rod to drive the connecting plate to move, and then the cutting knife can cut the object.

[0015] (4) The present invention drives the second cone wheel to rotate by rotating the rotating rod. During the rotation of the second cone wheel, due to the meshing with the first cone wheel, the first cone wheel drives the first bidirectional screw to rotate synchronously. By rotating the turntable, the third cone wheel is driven to rotate. During the rotation of the third cone wheel, one of the first cone wheels can be driven to rotate. The operation of the third servo motor can drive the threaded rod to rotate, and the operation of the second servo motor can drive the second bidirectional screw to rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention.

[0018] Figure 3 It is a schematic diagram of the main structure of the present invention.

[0019] Figure 4 It is a bottom view structural schematic diagram of the present invention.

[0020] Figure 5 For the present invention Figure 2 A in the figure is a schematic diagram of the enlarged structure.

[0021] In the figure: 1, bottom plate; 2, first slide groove; 3, first bidirectional screw; 4, first threaded block; 5, base; 6, T-slot; 7, T-ring; 8, connecting pipe; 9, fixed pipe; 10, connecting ring; 11, rotating shaft; 12, sliding rod; 13, first tooth groove; 14, first gear; 15, second gear; 16, limit block; 17, clamping plate; 18, U-block; 19, rotating ring; 20, second tooth groove; 21, linkage shaft; 22, third gear; 23, first gear; Three tooth grooves; 24, square rod; 25, fixed plate; 26, first servo motor; 27, first cone wheel; 28, second slide groove; 29, rotating rod; 30, second cone wheel; 31, third cone wheel; 32, turntable; 33, connecting box; 34, threaded rod; 35, moving column; 36, U-shaped column; 37, second bidirectional screw; 38, second threaded block; 39, connecting rod; 40, connecting plate; 41, cutting knife; 42, second servo motor; 43, third servo motor. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0023] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific scope of protection of the present invention.

[0024] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0025] One of the preferred embodiments of the present invention is as follows Figures 1 to 5As shown, an automatic cutting device for a tube bundle of a shell and tube heat exchanger comprises a bottom plate 1 and a connecting tube 8: a linkage mechanism is provided on the top of the bottom plate 1, a clamping mechanism is provided on one side of the connecting tube 8, and a telescopic mechanism is provided on one side of the bottom plate 1 and above the linkage mechanism. The clamping mechanisms can be brought closer to each other through the linkage mechanism so that the clamping mechanisms can be clamped and fixed according to the length of the shell and tube heat exchanger, and the cutting equipment can be driven to cut the tube bundle through the telescopic structure; The linkage mechanism includes a first slide 2, a first bidirectional screw 3, a first cone wheel 27, a second slide 28, a second cone wheel 30, a rotating rod 29, and a third cone wheel 31. The clamping mechanism includes a fixed tube 9, a connecting tube 8, a rotating shaft 11, a sliding rod 12, a first tooth groove 13, a first gear 14, a second gear 15, a limit block 16, a clamping plate 17, a U-shaped block 18, a rotating ring 19, and a second tooth groove 20. The telescopic mechanism includes a connecting box 33, a threaded rod 34, a moving column 35, a U-shaped column 36, a second bidirectional screw 37, a second threaded block 38, a connecting rod 39, a connecting plate 40, and a cutting knife 41. Two first slide grooves 2 are provided on the top of the bottom plate 1, and the first two-way screw rods 3 are rotatably connected inside the first slide grooves 2, and the outer sides of the first two-way screw rods 3 are threadedly connected to two first threaded blocks 4, and the tops of the two corresponding first threaded blocks 4 are fixedly connected with a base 5, and the tops of the bases 5 are provided with T-slots 6, and the outer sides of the connecting tubes 8 are fixedly connected with T-rings 7, and the T-rings 7 are slidably connected to the corresponding T-slots 6, and one side of the connecting tube 8 is fixedly connected with a fixed tube 9, and the outer side of the fixed tube 9 is fixedly connected with a connecting ring 10, and the outer side of the fixed tube 9 is equidistantly slidably connected with a sliding rod 12, and one end of the sliding rod 12 extends to the inside of the fixed tube 9 and is fixedly connected with a clamping plate 17, and a rotating shaft 11 is rotatably connected between the connecting ring 10 and the connecting tube 8 and on one side of the sliding rod 12, and the outer side of the rotating shaft 11 The first gear 14 is fixedly connected to the sides, and the first tooth grooves 13 are equidistantly provided on the outer sides of the sliding rod 12. The first gears 14 are meshed with the first tooth grooves 13. One end of the sliding rod 12 and the end away from the clamping plate 17 are fixedly connected to the limiting block 16. Two first sliding grooves 2 are provided on the top of the base plate 1. The first bidirectional screw 3 is rotatably connected in the first sliding groove 2. Because the first bidirectional screw 3 has a bidirectional thread, when the first bidirectional screw 3 is rotated, the two first thread blocks 4 threadedly connected thereto will move toward or away from the first bidirectional screw 3. A base 5 is fixedly connected between the tops of every two corresponding first thread blocks 4, so the distance between the two bases 5 can be adjusted by rotating the first bidirectional screw 3. A T-slot 6 is provided on the top of the base 5, and a T-ring 7 fixed on the outside of the connecting pipe 8 is slidably connected to the T-slot 6. In this way, the connecting tube 8 can slide in the T-slot 6 of the base 5, and a fixing tube 9 is fixed on one side of the connecting tube 8, and a connecting ring 10 is fixed on the outside of the fixing tube 9. There is a rotating shaft 11 between the connecting ring 10 and the connecting tube 8, and the rotating shaft 11 can rotate. A first gear 14 is fixed on the outside of the rotating shaft 11, and an equidistant sliding connection slide rod 12 is arranged on the outside of the fixing tube 9. An equidistant first tooth groove 13 is arranged on the outside of the sliding rod 12, and the first gear 14 is meshed with the first tooth groove 13. When the rotating shaft 11 is rotated, the first gear 14 rotates accordingly. Due to the meshing relationship, the sliding rod 12 will slide along the radial direction of the fixing tube 9. One end of the sliding rod 12 extends to the inside of the fixing tube 9 and is fixed with a clamping plate 17, and a limiting block 16 is fixed on the other end. When the sliding rod 12 slides into the inside of the fixing tube 9, the clamping plate 17 moves toward the center of the fixing tube 9, and can clamp the object located in the fixing tube 9. The limiting block 16 can prevent the sliding rod 12 from falling out of the fixing tube 9.

[0026] U-shaped blocks 18 are fixedly connected to the outside of the fixed tube 9 at equal intervals, and a swivel 19 is slidably connected between the multiple U-shaped blocks 18. The inner wall of the swivel 19 is evenly provided with second tooth grooves 20. The outside of the rotating shaft 11 and one side of the first gear 14 are fixedly connected with second gears 15, and the second gears 15 are meshingly connected with the second tooth grooves 20. Multiple U-shaped blocks 18 are fixedly connected to the outside of the fixed tube 9 at equal intervals. These U-shaped blocks 18 play a supporting and guiding role, so that the swivel 19 can slide between them. The swivel 19 can rotate around the fixed tube 9 within the range defined by the U-shaped block 18. The rotating shaft 11 has formed a rotating connection relationship with the connecting ring 10 and the connecting tube 8 in the previous structure, and a second gear 15 is fixedly connected to the outer side of the rotating shaft 11 on one side of the first gear 14. The inner wall of the swivel 19 is equidistantly provided with second tooth grooves 20, and the second gear 15 is meshingly connected to the second tooth grooves 20 on the inner wall of the swivel 19. When the rotating shaft 11 is rotated, for example by external force, the second gear 15 on the rotating shaft 11 will rotate with the rotating shaft 11. Since the second gear 15 is meshed with the second tooth groove 20 of the swivel 19, the rotation of the second gear 15 will drive the swivel 19 to slide and rotate between the U-shaped blocks 18, thereby indirectly controlling the rotation of the swivel 19 through the rotation of the rotating shaft 11. During the rotation of the swivel 19, all the rotating shafts 11 can be driven to rotate synchronously through the second gear 15.

[0027] The outer side of the base 5 is rotatably connected with a linkage shaft 21, a square rod 24 is slidably connected between the two linkage shafts 21, one end of the linkage shaft 21 and the outer side of the square rod 24 is fixedly connected with a third gear 22, the outer side of the connecting tube 8 is evenly provided with a third tooth groove 23, the third gear 22 is meshed with the third tooth groove 23, both sides of the top of the bottom plate 1 are fixedly connected with a fixed plate 25, the fixed plate 25 is rotatably connected with the square rod 24, one side of one of the fixed plates 25 is fixedly connected with a first servo motor 26, the first servo motor The output shaft of 26 is fixedly connected to the square rod 24, and the square rod 24 can be driven to rotate by the operation of the first servo motor 26. During the rotation of the square rod 24, the linkage shaft 21 can be driven to rotate, and the surface of the linkage shaft 21 is slidably connected to the surface of the square rod 24, so that when the base 5 moves, the square rod 24 does not affect the rotation of the linkage shaft 21. During the rotation of the linkage shaft 21, the third gear 22 can be driven to rotate, so that it can be meshed with the third tooth groove 23, thereby driving the connecting pipe 8 to rotate.

[0028] A connecting box 33 is fixedly connected to one side of the base plate 1, and a threaded rod 34 is rotatably connected inside the connecting box 33. A movable column 35 is threadedly connected to the outer side of the threaded rod 34, and a U-shaped column 36 is fixedly connected to one side of the movable column 35. A second bidirectional screw 37 is rotatably connected to the inner wall of the U-shaped column 36, and a second threaded block 38 is threadedly connected to the outer side of the second bidirectional screw 37. A connecting rod 39 is rotatably connected to the bottom of the second threaded block 38, and a connecting plate 40 is rotatably connected between the two connecting rods 39. A cutting knife 41 is fixedly connected to the bottom of the connecting plate 40, and the threaded rod 34 is rotated so that the movable column 35 can drive the U-shaped column 36 to move. When the U-shaped column 36 reaches a predetermined position, the second bidirectional screw 37 is rotated so that the connecting rod 39 can drive the connecting plate 40 to move, and then the cutting knife 41 can cut the object.

[0029] A second slide groove 28 is provided at the top of the bottom plate 1 and between the two first slide grooves 2. A rotating rod 29 is rotatably connected inside the second slide groove 28. Both ends of the rotating rod 29 extend to the inside of the corresponding first slide groove 2 and are fixedly connected to a second cone wheel 30. The outer side of the first bidirectional screw 3 is fixedly connected to a first cone wheel 27. By rotating the rotating rod 29, the second cone wheel 30 is driven to rotate. During the rotation of the second cone wheel 30, due to the meshing with the first cone wheel 27, the first cone wheel 27 drives the first bidirectional screw 3 to rotate synchronously.

[0030] The outer side of the base plate 1 is rotatably connected to a turntable 32, the output shaft of the turntable 32 extends to the inside of the first slide groove 2 and is fixedly connected to a third cone wheel 31, the third cone wheel 31 is meshed and connected with the first cone wheel 27, and the turntable 32 is rotated to drive the third cone wheel 31 to rotate, and during the rotation of the third cone wheel 31, one of the first cone wheels 27 can be driven to rotate.

[0031] A third servo motor 43 is fixedly connected to the outer side of the connecting box 33, and the output shaft of the third servo motor 43 is fixedly connected to the threaded rod 34. A second servo motor 42 is fixedly connected to the outer side of the U-shaped column 36, and the output shaft of the second servo motor 42 is fixedly connected to the second bidirectional screw 37. The operation of the third servo motor 43 can drive the threaded rod 34 to rotate, and the operation of the second servo motor 42 can drive the second bidirectional screw 37 to rotate.

[0032] Working principle: When in use, the clamping mechanisms can be brought closer to each other through the linkage mechanism, so that the clamping mechanisms can be clamped and fixed according to the length of the shell and tube heat exchanger, and the cutting equipment can be driven to cut the tube bundle through the telescopic structure. Two first slide grooves 2 are provided on the top of the bottom plate 1, and the first bidirectional screw 3 is rotatably connected in the first slide groove 2. Because the first bidirectional screw 3 has a bidirectional thread, when the first bidirectional screw 3 is rotated, the two first thread blocks 4 threadedly connected thereto will move toward or away from each other along the first bidirectional screw 3. A base 5 is fixedly connected between the tops of every two corresponding first thread blocks 4, so the distance between the two bases 5 can be adjusted by rotating the first bidirectional screw 3. A T-slot 6 is provided on the top of the base 5, and a T-ring 7 fixed on the outside of the connecting pipe 8 is slidably connected to the T-slot 6. In this way, the connecting tube 8 can slide in the T-slot 6 of the base 5, and a fixing tube 9 is fixed on one side of the connecting tube 8, and a connecting ring 10 is fixed on the outside of the fixing tube 9. There is a rotating shaft 11 between the connecting ring 10 and the connecting tube 8, and the rotating shaft 11 can rotate. A first gear 14 is fixed on the outside of the rotating shaft 11, and a sliding rod 12 is equidistantly slidably connected to the outside of the fixing tube 9. There are first tooth grooves 13 equidistantly arranged on the outside of the sliding rod 12, and the first gear 14 meshes with the first tooth grooves 13. When the rotating shaft 11 is rotated, the first gear 14 rotates accordingly. Due to the meshing relationship, the sliding rod 12 will slide along the radial direction of the fixing tube 9. One end of the sliding rod 12 extends to the inside of the fixing tube 9 and is fixed with a clamping plate 17, and a limiting block 16 is fixed on the other end. When the sliding rod 12 slides into the inside of the fixing tube 9, the clamping plate 17 moves toward the center of the fixing tube 9 to clamp the object in the fixing tube 9, and the limiting block 16 can prevent the sliding rod 12 from falling out of the fixing tube 9. A plurality of U-shaped blocks 18 are fixedly connected to the outside of the fixed tube 9 at equal intervals. The U-shaped blocks 18 play a supporting and guiding role, so that the rotating ring 19 can slide between them. The swivel 19 can rotate around the fixed tube 9 within the range defined by the U-shaped block 18. The rotating shaft 11 has formed a rotational connection relationship with the connecting ring 10 and the connecting tube 8 in the previous structure, and the second gear 15 is fixedly connected to the outer side of the rotating shaft 11 on one side of the first gear 14. The inner wall of the rotating ring 19 is equidistantly provided with second tooth grooves 20, and the second gear 15 is meshedly connected with the second tooth grooves 20 on the inner wall of the rotating ring 19. When the rotating shaft 11 is rotated, for example, by external force, the second gear 15 on the rotating shaft 11 will rotate with the rotating shaft 11. Since the second gear 15 is meshed with the second tooth groove 20 of the rotating ring 19, the rotation of the second gear 15 will drive the rotating ring 19 to slide and rotate between the U-shaped blocks 18, thereby indirectly controlling the rotation of the rotating ring 19 through the rotation of the rotating shaft 11. During the rotation of the rotating ring 19, all the rotating shafts 11 can be driven to rotate synchronously through the second gear 15. The first servo motor 26 works to drive the square rod 24 to rotate, and during the rotation of the square rod 24, the linkage shaft 21 can be driven to rotate, and the surface of the linkage shaft 21 is slidably connected to the surface of the square rod 24, so that when the base 5 moves, the square rod 24 does not affect the rotation of the linkage shaft 21, and during the rotation of the linkage shaft 21, the third gear 22 can be driven to rotate, so that it can be meshed with the third tooth groove 23, thereby driving the connecting pipe 8 to rotate, and by rotating the threaded rod 34, the moving column 35 can drive the U-shaped column 36 to move. When the U-shaped column 36 reaches the predetermined position, the second bidirectional screw 37 is rotated, so that the connecting rod 39 can drive the connecting plate 40 to move, and then the cutting knife 41 can cut the object; By rotating the rotating rod 29, the second cone wheel 30 is driven to rotate. During the rotation of the second cone wheel 30, due to the meshing with the first cone wheel 27, the first cone wheel 27 drives the first bidirectional screw 3 to rotate synchronously. By rotating the turntable 32, the third cone wheel 31 is driven to rotate. During the rotation of the third cone wheel 31, one of the first cone wheels 27 can be driven to rotate. Through the operation of the third servo motor 43, the threaded rod 34 can be driven to rotate, and the operation of the second servo motor 42 can drive the second bidirectional screw 37 to rotate.

[0033] The above describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention to be protected. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. An automatic cutting device for tube bundles of shell and tube heat exchangers, characterized in that: It comprises a bottom plate (1) and a connecting pipe (8): a linkage mechanism is provided on the top of the bottom plate (1), a clamping mechanism is provided on one side of the connecting pipe (8), and a telescopic mechanism is provided on one side of the bottom plate (1) and above the linkage mechanism; The linkage mechanism comprises a first slide groove (2), a first bidirectional screw rod (3), a first cone wheel (27), a second slide groove (28), a second cone wheel (30), a rotating rod (29), and a third cone wheel (31); the clamping mechanism comprises a fixed tube (9), a connecting tube (8), a rotating shaft (11), a sliding rod (12), a first tooth groove (13), a first gear (14), a second gear (15), a limit block (16), a clamping plate (17), a U-shaped block (18), a rotating ring (19), and a second tooth groove (20); the telescopic mechanism comprises a connecting box (33), a threaded rod (34), a movable column (35), a U-shaped column (36), a second bidirectional screw (37), a second threaded block (38), a connecting rod (39), a connecting plate (40), and a cutting knife (41); The top of the bottom plate (1) is provided with two first slide grooves (2), the interior of each of the first slide grooves (2) is rotatably connected to a first bidirectional screw rod (3), the outer side of each of the first bidirectional screw rods (3) is threadedly connected to two first threaded blocks (4), a base (5) is fixedly connected between the tops of the two corresponding first threaded blocks (4), a T-shaped groove (6) is provided on the top of each of the bases (5), the outer side of each of the connecting tubes (8) is fixedly connected to a T-shaped ring (7), the T-shaped ring (7) is slidably connected to the corresponding T-shaped groove (6), one side of the connecting tube (8) is fixedly connected to a fixing tube (9), and the outer side of each of the fixing tubes (9) is fixedly connected to a connecting ring (1 0), the outer side of the fixed tube (9) is equidistantly slidably connected to a slide bar (12), one end of the slide bar (12) extends into the interior of the fixed tube (9) and is fixedly connected to a clamping plate (17), a rotating shaft (11) is rotatably connected between the connecting ring (10) and the connecting tube (8) and located on one side of the slide bar (12), the outer side of the rotating shaft (11) is fixedly connected to a first gear (14), the outer side of the slide bar (12) is equidistantly provided with a first tooth groove (13), the first gear (14) is meshedly connected to the first tooth groove (13), and one end of the slide bar (12) and the end away from the clamping plate (17) is fixedly connected to a limit block (16); U-shaped blocks (18) are fixedly connected to the outside of the fixed tube (9) at equal intervals, a rotating ring (19) is slidably connected between the plurality of U-shaped blocks (18), and the inner wall of the rotating ring (19) is provided with second tooth grooves (20) at equal intervals. A second gear (15) is fixedly connected to the outside of the rotating shaft (11) and located on one side of the first gear (14), and the second gear (15) is meshingly connected to the second tooth groove (20).

2. The automatic tube bundle cutting device for a shell and tube heat exchanger according to claim 1, characterized in that: The outer sides of the base (5) are rotatably connected with linkage shafts (21), a square rod (24) is slidably connected between the two linkage shafts (21), one end of the linkage shaft (21) and located on the outer sides of the square rods (24) is fixedly connected with a third gear (22), the outer sides of the connecting tubes (8) are equidistantly provided with third tooth grooves (23), the third gears (22) are meshingly connected with the third tooth grooves (23), the top sides of the bottom plate (1) are fixedly connected with fixed plates (25), the fixed plates (25) are rotatably connected with the square rods (24), one side of one of the fixed plates (25) is fixedly connected with a first servo motor (26), the output shaft of the first servo motor (26) is fixedly connected with the square rods (24).

3. The automatic tube bundle cutting device for a shell and tube heat exchanger according to claim 1, characterized in that: A connection box (33) is fixedly connected to one side of the base plate (1); a threaded rod (34) is rotatably connected to the interior of the connection box (33); a movable column (35) is threadedly connected to the outer side of the threaded rod (34); a U-shaped column (36) is fixedly connected to one side of the movable column (35); a second bidirectional screw rod (37) is rotatably connected to the inner wall of the U-shaped column (36); a second threaded block (38) is threadedly connected to the outer side of the second bidirectional screw rod (37); a connecting rod (39) is rotatably connected to the bottom of each of the second threaded blocks (38); a connecting plate (40) is rotatably connected between the two connecting rods (39); and a cutting knife (41) is fixedly connected to the bottom of the connecting plate (40).

4. The automatic tube bundle cutting device for a shell and tube heat exchanger according to claim 1, characterized in that: A second slide groove (28) is provided at the top of the bottom plate (1) and between the two first slide grooves (2); a rotating rod (29) is rotatably connected inside the second slide groove (28); both ends of the rotating rod (29) extend to the inside of the corresponding first slide groove (2) and are fixedly connected to a second cone wheel (30); and the outer side of the first bidirectional screw rod (3) is fixedly connected to the first cone wheel (27).

5. The automatic tube bundle cutting device for a shell and tube heat exchanger according to claim 4, characterized in that: A rotating disk (32) is rotatably connected to the outer side of the bottom plate (1); an output shaft of the rotating disk (32) extends into the interior of the first sliding groove (2) and is fixedly connected to a third cone wheel (31); the third cone wheel (31) is meshingly connected to the first cone wheel (27).

6. The automatic tube bundle cutting device for a shell and tube heat exchanger according to claim 3, characterized in that: A third servo motor (43) is fixedly connected to the outside of the connection box (33), and an output shaft of the third servo motor (43) is fixedly connected to the threaded rod (34). A second servo motor (42) is fixedly connected to the outside of the U-shaped column (36), and an output shaft of the second servo motor (42) is fixedly connected to the second bidirectional screw rod (37).

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