CN117505999A - Automatic tube bundle cutting equipment for shell-and-tube heat exchanger - Google Patents

Abstract

The invention relates to the technical field of tube-shell heat exchanger assembly, in particular to automatic tube bundle cutting equipment for a tube-shell heat exchanger, which comprises a machine body, wherein a first bearing frame and a second bearing frame are fixedly arranged on the upper end face of the machine body, the first bearing frame and the second bearing frame are both composed of supporting blocks and half-arc concave blocks, and a position correcting mechanism for limiting the positions of tube plates and tube bundles is arranged on the machine body and the second bearing frame together. The tube bundle and the tube plate are pre-installed and then aligned, the protruding parts of the tube bundle are integrally cut, the accuracy and the consistency of each cutting point of the tube bundle are ensured, errors possibly introduced by manual operation are avoided, the matching degree and the quality stability of the integral tube bundle are ensured, a large amount of manpower resources and time cost are saved, the cut positions of the cut tube bundle are corrected by extruding from inside to outside, the risk that the tube bundle is not tightly sealed and leakage is increased due to the sinking of the tube bundle in the cutting process is avoided, and convenience is brought to the welding of the tube bundle and the tube plate.

Description

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

Technical Field

The invention relates to the technical field of tube-shell heat exchanger assembly, in particular to automatic tube bundle cutting equipment for a tube-shell heat exchanger.

Background

The shell-and-tube heat exchanger is a common heat exchange device used for transferring heat between two media, and the design makes the shell-and-tube heat exchanger very suitable for industrial processes requiring efficient heat transfer, and the shell-and-tube heat exchanger mainly comprises a tube plate, a fixed tube plate and a tube bundle, so that when the shell-and-tube heat exchanger is manufactured, the tube bundle is required to be cut and then fixed on the tube plate so as to meet the actual requirements to customize the tube bundle size, layout and structure of the heat exchanger and complete the specific process requirements.

When the tube bundle of the shell-and-tube heat exchanger is cut by the existing equipment, the specific position of the tube bundle to be cut is required to be determined through accurate measurement and marking, then the tube bundles are cut one by one according to the marking by using a cutting machine, the tube bundles are respectively inserted into tube plates after the cutting is finished, and the tube bundles are fixedly connected through welding, but the following defects exist in the operation: the cutting operation needs to be carried out one by one, so that a great deal of time and labor are needed, a great deal of manpower resources and time cost are wasted, and consistency of each cutting point of the tube bundle is difficult to ensure, and uneven or unaligned tube bundle installation is caused; moreover, the concave situation that can appear in the above-mentioned cutting process tube bank, if not in time carry out orthopedic processing to its cutting part, can lead to sealed not tight increase the risk of leaking, also can lead to system efficiency decline or need frequent maintenance to follow-up tube bank and tube sheet's installation can be very difficult, thereby lead to the assembly fastening to be insecure and cause the potential safety hazard.

Therefore, in order to ensure that the manufactured shell-and-tube heat exchanger meets the actual requirements to customize the tube bundle size, layout and structure of the heat exchanger, the invention provides automatic tube bundle cutting equipment for the shell-and-tube heat exchanger.

Disclosure of Invention

In order to solve the technical problems, the invention provides automatic tube bundle cutting equipment for a shell-and-tube heat exchanger, which is realized by the following specific technical means:

the automatic tube bundle cutting equipment for the shell-and-tube heat exchanger comprises a machine body, wherein a first bearing frame and a second bearing frame are fixedly arranged on the upper end face of the machine body, the first bearing frame and the second bearing frame are both composed of supporting blocks and half-arc concave blocks, a plurality of rolling shafts are rotatably arranged in the half-arc concave blocks in a circumferential array mode, the two half-arc concave blocks are coaxially arranged, and a position correcting mechanism for limiting the positions of a tube plate and a tube bundle is jointly arranged on the machine body and the second bearing frame; the correcting mechanism comprises a positioning part which is arranged on the machine body and positioned at the rear end of the second bearing frame, and a rotating part is arranged on the front end surface of the second bearing frame.

A cutting mechanism for automatically and integrally cutting the tube bundle is arranged on the machine body and positioned at the front end of the first bearing frame; the cutting mechanism comprises an alignment part arranged on the machine body, the front end face of the alignment part is provided with a cutting part, and a clamping part used for loading the tube plate is arranged in the alignment part.

The upper end face of the machine body is provided with an orthopedic mechanism which is positioned at the front side of the cutting mechanism and used for correcting the cut pipe orifice.

As a preferable technical scheme of the invention, the positioning part comprises a first slideway, a position-resisting sliding block, a position-resisting groove, a clamping rod, a clamping rack and a pedal, wherein the first slideway is arranged on the machine body and positioned at the rear end of the second bearing frame, the position-resisting sliding block is slidably arranged on the first slideway, the front end surface of the position-resisting sliding block is provided with the position-resisting groove for limiting the position of the tube bundle, the position-resisting groove and the half-arc concave block are coaxially arranged, the lower end of the position-resisting sliding block is rotationally provided with a clamping rod which is bilaterally symmetrical through a hinge, the upper end surface of the machine body is fixedly provided with the clamping rack positioned below the clamping rod, the front end of the clamping rod is in the clamping rack through the hinge, and the pedal is fixedly arranged at the rear end of the clamping rod.

As a preferable technical scheme of the invention, the rotating part comprises a half-arc slide way, a half-arc slide block, a first motor, a limiting block and a rubber clamping tube arc block, wherein the half-arc slide way is fixedly arranged on the front end face of the half-arc concave block of the second bearing frame, the half-arc slide way is internally and slidably provided with the half-arc slide block, the half-arc slide block is provided with a first rack, the second bearing frame support block is fixedly provided with the first motor, the output end of the first motor is fixedly sleeved with a first gear, the first gear is meshed with the first rack, symmetrical limiting blocks are fixedly arranged at the left end and the right end of the half-arc slide block, the rubber clamping tube arc block is slidably arranged in the limiting block, and a plurality of rubber clamping tube clamps are arranged on one side walls of the rubber clamping tube arc blocks, which are close to each other, in a linear array mode.

As a preferable technical scheme of the invention, the alignment part comprises a second slideway, a loading slide block, a second motor and a screw rod, wherein the second slideway is arranged on the upper end face of the machine body and positioned at the front end of the first bearing frame, the loading slide block is slidably arranged on the second slideway and comprises an annular bin and a supporting slide block from top to bottom, the annular bin and the semi-arc concave block are coaxially arranged, the second motor is fixedly arranged at the front end of the interior of the second slideway, the screw rod is rotatably arranged in the second slideway, the output end of the second motor is fixedly connected with the screw rod, and the screw rod is in threaded connection with the supporting slide block.

As a preferable technical scheme of the invention, the cutting part comprises a toothed ring, a third motor, a fixing frame, a first cylinder, a cutting machine and a limiting slide rod, wherein the toothed ring is rotatably arranged on the front end face of the annular bin, the third motor is fixedly arranged on the annular bin, a second gear is fixedly sleeved at the output end of the third motor, the second gear is meshed with the toothed ring, the fixing frame is fixedly arranged on the front end face of the toothed ring, a sliding ring is arranged on the front end face of the fixing frame, the first cylinder with a telescopic end facing the axis is fixedly arranged in the fixing frame, the cutting machine is fixedly arranged at the telescopic end of the first cylinder, the limiting slide rod is fixedly arranged on the front end face of the cutting machine, and the limiting slide rod is in sliding connection with the sliding ring.

As a preferable technical scheme of the invention, the clamping part comprises a gear ring, a knob, a thread bush, a limit sleeve and an L-shaped clamping plate, the gear ring is rotatably arranged on the rear end surface inside the annular bin, the knob penetrating through the side wall of the annular bin is rotatably arranged on the annular bin, a first bevel gear is fixedly sleeved on the knob, the first bevel gear is in meshed connection with the gear ring, a plurality of thread bushes penetrating through the inner side wall of the annular bin are rotatably arranged in the annular bin in a circumferential array mode, the thread bushes are in meshed connection with the gear ring through a second bevel gear fixedly sleeved on the thread bushes, the other end of the thread bushes is rotatably connected with the limit sleeve which is fixedly connected with the annular bin, the thread bush is in threaded connection with the L-shaped clamping plate through a threaded rod arranged in the thread bush, and the limit sleeve is in sliding connection with the threaded rod through a groove arranged on the threaded rod.

As a preferable technical scheme of the invention, the orthopedic mechanism comprises an orthopedic support frame, a second air cylinder, an alignment disc, a hole expanding rod and an alignment sliding rod, wherein the front end of the upper end face of the machine body is fixedly provided with the orthopedic support frame, the second air cylinder is fixedly arranged on the orthopedic support frame, the alignment disc is fixedly arranged at the telescopic end of the second air cylinder, the alignment disc and the half-arc concave block are coaxially arranged, the rear end face of the alignment disc is fixedly provided with the hole expanding rod for extruding the tube bundle from inside to outside, and the alignment disc is in sliding connection with the orthopedic support frame through the alignment sliding rod which is symmetrically and fixedly arranged on the left side and the right side.

Compared with the prior art, the invention has the following beneficial effects:

1. this shell-and-tube heat exchanger tube bank automatic cutout equipment uses through the mutually supporting of correction mechanism, cutting mechanism and the orthopedic mechanism that set up, with tube bank and solid tube sheet to it counterpoint after having installed in advance to carry out the whole cutting to the outstanding part of tube bank, ensure the accuracy and the uniformity of every department cut point of tube bank, avoided the error that manual operation probably introduced, guaranteed the matching degree and the quality stability of whole tube bank, saved a large amount of manpower resources and time cost simultaneously.

2. This shell-and-tube heat exchanger tube bank automatic cutout equipment through the correction mechanism that sets up, limits the position of tube bank and tube sheet when installing in advance to ensure that the relative position of two is accurate, the accuracy when guaranteeing tube bank cutting, prevent unnecessary error or skew, and simplify whole installation flow, need not to spend too much time on every tube bank and confirm the position.

3. This shell-and-tube heat exchanger tube bank automatic cutout equipment through the cutting mechanism that sets up to the tube sheet carries out the whole cutting to a plurality of tube banks as the reference, ensures the incision position and the size uniformity of a plurality of tube banks, keeps overall structure's equilibrium and heat exchanger's stability to practice thrift a large amount of operating time, be favorable to alignment and job stabilization nature after the installation.

4. This shell-and-tube heat exchanger tube bank automatic cutout equipment through the orthopedic mechanism that sets up, extrudees the tube bank after the cutting from inside to outside and rectifies its cutting position to avoid the sunken that appears of tube bank in the cutting process, lead to the sealed condition of not tight increase leakage risk of tube bank, can provide convenience for the welded mounting of follow-up tube bank and tube sheet simultaneously, thereby ensure firm and the stability of shell-and-tube heat exchanger of assembly.

Drawings

Fig. 1 is a schematic side view of a shell-and-tube heat exchanger tube bundle according to the present invention.

Fig. 2 is a schematic rear perspective view of the tube bundle of the shell-and-tube heat exchanger of the present invention.

Fig. 3 is a schematic perspective view of the body of the present invention.

Fig. 4 is a schematic perspective view of a positioning mechanism according to the present invention.

Fig. 5 is an enlarged schematic view of the structure at a in fig. 4.

Fig. 6 is an enlarged schematic view of the structure at B in fig. 4.

Fig. 7 is a schematic perspective view of the alignment portion and the cutting portion according to the present invention.

Fig. 8 is a schematic perspective view of a clamping portion according to the present invention.

Fig. 9 is a schematic perspective view of an orthopedic mechanism according to the present invention.

Fig. 10 is a schematic view of a tube bundle structure of a shell-and-tube heat exchanger.

In the figure: 1. a body; 2. a first carrier; 3. a second carrier; 4. a position correcting mechanism; 41. a positioning part; 411. a first slideway; 412. a position-resisting sliding block; 413. alignment grooves; 414. a clamping rod; 415. a clamping rack; 416. a pedal; 42. a rotating part; 421. a half-arc slideway; 422. a half-arc slider; 423. a first motor; 424. a limiting block; 425. a rubber clamping pipe arc block; 5. a cutting mechanism; 51. an alignment part; 511. a second slideway; 512. loading a sliding block; 513. a second motor; 514. a screw; 52. a cutting section; 521. a toothed ring; 522. a third motor; 523. a fixing frame; 524. a first cylinder; 525. a cutting machine; 526. a limit slide bar; 53. a clamping part; 531. a gear ring; 532. a knob; 533. a thread sleeve; 534. a limit sleeve; 535. an L-shaped clamping plate; 6. an orthopedic mechanism; 601. an orthopedic support frame; 602. a second cylinder; 603. an alignment plate; 604. a hole expanding rod; 605. and (5) aligning the slide bar.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1, 2 and 10, an automatic tube bundle cutting device for a shell-and-tube heat exchanger comprises a machine body 1, wherein a first bearing frame 2 and a second bearing frame 3 are fixedly arranged on the upper end surface of the machine body 1, the first bearing frame 2 and the second bearing frame 3 are both composed of supporting blocks and half-arc concave blocks, a plurality of rollers are rotatably arranged in the half-arc concave blocks in a circumferential array manner, the two half-arc concave blocks are coaxially arranged, and a position correcting mechanism 4 for limiting positions of tube plates and tube bundles is commonly arranged on the machine body 1 and the second bearing frame 3; the positioning mechanism 4 comprises a positioning part 41 arranged on the machine body 1 and positioned at the rear end of the second bearing frame 3, and a rotating part 42 is arranged on the front end surface of the second bearing frame 3.

Referring to fig. 1 and 2, a cutting mechanism 5 for automatically cutting the tube bundle integrally is arranged on the machine body 1 and positioned at the front end of the first bearing frame 2; the cutting mechanism 5 includes an alignment portion 51 provided on the body 1, a cutting portion 52 is provided on a front end surface of the alignment portion 51, and a clamping portion 53 for loading the tube sheet is provided in the alignment portion 51.

Referring to fig. 1 and 2, the upper end surface of the body 1 is provided with an orthopedic mechanism 6 positioned on the front side of the cutting mechanism 5 for orthopedic of the cut orifice.

Referring to fig. 2, 3, 4 and 6, the rotating portion 42 includes a half arc slide 421, a half arc slide 422, a first motor 423, a limiting block 424 and a rubber clamping tube arc block 425, the half arc slide 421 is fixedly mounted on the front end surface of the half arc concave block of the second bearing frame 3, the half arc slide 422 is slidably mounted in the half arc slide 421, a first rack is disposed on the half arc slide 422, the first motor 423 is fixedly mounted on the supporting block of the second bearing frame 3, a first gear is fixedly sleeved at the output end of the first motor 423, the first gear is engaged with the first rack, symmetrical limiting blocks 424 are fixedly mounted at the left end and the right end of the half arc slide 422, the rubber clamping tube arc block 425 is slidably mounted in the limiting block 424, and a plurality of rubber clamping tube clamps are disposed on a side wall of the rubber clamping tube arc block 425, which is close to each other, in a linear array manner.

When the tube bundle of the shell-and-tube heat exchanger is required to be cut, the tube bundle and the fixed tube plate are preinstalled, the fixed tube plates are respectively aligned with the half-arc concave blocks, the preinstalled tube bundle is placed on the first bearing frame 2 and the second bearing frame 3, the half-arc concave blocks of the first bearing frame 2 and the second bearing frame 3 can limit the positions of the fixed tube plates, and the roller arranged can reduce the abrasion to the fixed tube plates when the preinstalled tube bundle is rotated.

Then, the first motor 423 is started to be matched with the first rack through the first gear, the half-arc sliding block 422 rotates in the half-arc sliding way 421 by the axis of the half-arc concave block, when the half-arc sliding block 422 rotates to the position of the tube bundle on the outer side of the pre-installation with the limiting block 424, the first motor 423 stops running, the rubber clamping arc blocks 425 on the two sides are pushed out of the limiting block 424 respectively, the rubber clamping clamps are clamped to the position of the tube bundle close to the position of the tube bundle, then the rubber clamping clamps on the other side are clamped to the position of the tube bundle symmetrical to the position of the secondary side, at the moment, the first motor 423 can be reversely started to reversely rotate with the pre-installed tube bundle, and when the limiting blocks 424 on the two sides of the half-arc sliding block 422 are parallel, the first motor 423 stops running, and at the moment, the rotating part 42 can perform position calibration on the pre-installed tube bundle.

Referring to fig. 2, 3, 4 and 5, the positioning portion 41 includes a first slide 411, a positioning slider 412, a positioning groove 413, a clamping rod 414, a clamping bar 415 and a pedal 416, the first slide 411 is provided on the machine body 1 and located at the rear end of the second carrier 3, the positioning slider 412 is slidably mounted on the first slide 411, the front end surface of the positioning slider 412 is provided with the positioning groove 413 for limiting the position of the tube bundle, the positioning groove 413 and the half-arc concave block are coaxially arranged, the lower end of the positioning slider 412 is rotatably provided with a laterally symmetrical clamping bar 414 through a set hinge, the upper end surface of the machine body 1 is fixedly provided with the clamping bar 415 located below the clamping bar 414, the front end of the clamping bar 414 is abutted in the clamping bar 415 through the hinge, and the rear ends of the laterally symmetrical clamping bars 414 are fixedly mounted with the pedal 416.

Specifically during operation, after the rotation part 42 performs position calibration on the pre-installed tube bundle, the abutting sliding block 412 is pushed forward at this time to enable the abutting sliding block 412 to slide forward in the first slideway 411, the abutting sliding block 412 carries the alignment groove 413 to abut against the rear end of the tube bundle, the cutting position of the tube bundle is limited, the clamping rod 414 always abuts against the clamping tooth strip 415 under the action of the hinge in the moving process, and the position of the clamping rod is automatically fixed in the forward moving process of the abutting sliding block 412.

When the cutter is taken out after the cutting is completed, the worker only needs to pedal the plate 416 by feet so that the front end of the clamping rod 414 does not collide with the clamping tooth strip 415, and the propping slider 412 can be pulled backwards.

Referring to fig. 2, 3 and 9, the orthopedic mechanism 6 includes an orthopedic support frame 601, a second cylinder 602, an aligning plate 603, a reaming rod 604 and an aligning sliding rod 605, the front end of the upper end surface of the machine body 1 is fixedly provided with the orthopedic support frame 601, the second cylinder 602 is fixedly installed on the orthopedic support frame 601, the aligning plate 603 is fixedly installed at the telescopic end of the second cylinder 602, the aligning plate 603 and the half arc concave block are coaxially arranged, the reaming rod 604 for extruding the tube bundle from inside to outside is fixedly installed at the rear end surface of the aligning plate 603, and the aligning plate 603 is in sliding connection with the orthopedic support frame 601 through the aligning sliding rod 605 which is fixedly installed in a bilateral symmetry manner.

When the positioning device is specifically operated, after the to-be-positioned part 41 limits the pre-installed tube bundle, the second cylinder 602 is started to move backwards with the positioning disc 603, the positioning sliding rod 605 can ensure the stability of the moving process of the positioning disc 603, meanwhile, when the positioning disc 603 moves to the center of the annular bin with the reaming rod 604, the tube holes of the tube plate are aligned with the reaming rod 604, and the plurality of reaming rods 604 support the tube plate at the center of the annular bin.

When the cutting part 52 finishes cutting the tube bundle, the second cylinder 602 is started again to move backwards with the alignment disc 603, so that the reaming rod 604 can firstly extrude the cut tube bundle from the inside to correct the cutting position of the tube bundle, thus avoiding the situation that the tube bundle is recessed in the cutting process, leading to the situation that the tube bundle is sealed loose and the risk of leakage is increased, and simultaneously providing convenience for the welding and installation of the follow-up tube bundle and the tube plate, and further ensuring the firm assembly and the stability of the shell-and-tube heat exchanger.

Referring to fig. 2 and 8, the clamping portion 53 includes a gear ring 531, a knob 532, a thread sleeve 533, a stop collar 534 and an L-shaped clamping plate 535, the gear ring 531 is rotatably mounted on the rear end surface of the inside of the annular bin, the knob 532 penetrating through the side wall of the annular bin is rotatably mounted on the annular bin, a first bevel gear is fixedly sleeved on the knob 532, the first bevel gear is engaged with the gear ring 531, a plurality of thread sleeves 533 penetrating through the inner side wall of the annular bin are rotatably mounted in the annular bin in a circumferential array manner, a second bevel gear fixedly sleeved on the thread sleeve 533 is engaged with the gear ring 531, the stop collar 534 is rotatably connected with the other end of the thread sleeve 533, the stop collar 534 is fixedly connected with the annular bin, a threaded rod passing through the thread sleeve 533 is in threaded connection with the L-shaped clamping plate 535, and the stop collar 534 is slidably connected with the threaded rod through a groove and a projection.

When the correction mechanism 6 supports the tube plate at the center of the annular bin, the knob 532 is continuously rotated, so that the tube plate is driven to rotate by the first bevel gear to drive the gear ring 531 to synchronously rotate by the second bevel gear to drive the threaded sleeve 533 in the rotating process, meanwhile, the limit sleeve 534 is driven to rotate by the groove and the lug to limit the threaded rod, so that the threaded sleeve 533 can only drive the threaded rod to move towards the center of the annular bin, the L-shaped clamping plate 535 is driven to gradually approach the tube plate, and finally the tube plate is clamped and fixed at the position corresponding to the tube bundle, so that the tube plate is limited, the positions of the tube bundle and the tube plate are limited, the accuracy of the relative positions of the tube bundle and the tube plate is ensured, the accuracy of tube bundle cutting is ensured, unnecessary errors or shifts are prevented, the whole installation process is simplified, and excessive time is not required to be spent on each tube bundle to confirm the position.

And when the clamping part 53 finishes clamping the tube plate, the second cylinder 602 can be reversely started to reset the alignment disc 603, so that the reaming rod 604 releases the tube hole of the tube plate.

Referring to fig. 2, 3 and 7, the alignment portion 51 includes a second slide 511, a loading slider 512, a second motor 513 and a screw 514, the upper end surface of the machine body 1 is provided with the second slide 511 at the front end of the first carrier 2, the loading slider 512 is slidably mounted on the second slide 511, the loading slider 512 includes an annular bin and a supporting slider from top to bottom, the annular bin and the half-arc concave block are coaxially disposed, the second motor 513 is fixedly mounted at the front end inside the second slide 511, the screw 514 is rotatably mounted in the second slide 511, and the output end of the second motor 513 is fixedly connected with the screw 514, and the screw 514 is in threaded connection with the supporting slider.

In specific operation, after the clamping portion 53 completes clamping the tube plate, the second motor 513 is started to rotate with the screw 514, so that the loading slide block 512 slides in the second slideway 511 towards the tube bundle, the tube bundle passes through the tube hole of the tube plate under the cooperation of the aligning mechanism 4, and when the annular bin moves to a proper position on the tube bundle with the tube plate, the second motor 513 can be stopped.

Referring to fig. 2 and 7, the cutting portion 52 includes a toothed ring 521, a third motor 522, a fixing frame 523, a first cylinder 524, a cutter 525 and a limit slide bar 526, the toothed ring 521 is rotatably mounted on the front end surface of the annular bin, the third motor 522 is fixedly mounted on the annular bin, a second gear is fixedly sleeved at the output end of the third motor 522, the second gear is engaged with the toothed ring 521, the fixing frame 523 is fixedly mounted on the front end surface of the toothed ring 521, a sliding ring is arranged at the front end surface of the fixing frame 523, a first cylinder 524 with a telescopic end facing the axis is fixedly mounted in the fixing frame 523, the cutter 525 is fixedly mounted at the telescopic end of the first cylinder 524, the limit slide bar 526 is fixedly mounted on the front end surface of the cutter 525, and the limit slide bar 526 is slidably connected in the sliding ring.

During specific work, after the alignment part 51 finishes fixing the cutting position, the cutting machine 525, the third motor 522 and the first air cylinder 524 are started respectively, so that the third motor 522 rotates with the toothed ring 521 through the second gear, rotates with the fixing frame 523, cuts the tube bundles by taking the annular bin as the center, and determines the cutting radius of the cutting machine 525 through the telescopic end of the first air cylinder 524, thereby integrally cutting the tube bundles by taking the tube plate as a reference, ensuring the incision position and the size consistency of the tube bundles, maintaining the balance of the integral structure and the stability of the heat exchanger, saving a large amount of operation time, and being beneficial to alignment and working stability after installation.

Working principle: when the tube bundle of the shell-and-tube heat exchanger is required to be cut, the tube bundle and the fixed tube plate are preinstalled, then the fixed tube plate is respectively aligned with the half-arc concave blocks, the preinstalled tube bundle is placed on the first bearing frame 2 and the second bearing frame 3, and the half-arc concave blocks of the first bearing frame 2 and the second bearing frame can limit the position of the fixed tube plate.

Then, the first motor 423 is started to clamp the tube bundle near the rubber clamp, then the rubber clamp on the other side clamps the tube bundle symmetrical to the secondary side, at the moment, the first motor 423 can be reversely started to rotate the tube bundle after being pre-installed, when limiting blocks 424 on two sides of the half-arc sliding block 422 are parallel, the first motor 423 is stopped, at the moment, the rotating part 42 can calibrate the position of the tube bundle after being pre-installed, at the moment, the abutting sliding block 412 is pushed forward, and the rear end of the tube bundle is abutted through the positioning part 41.

Then, the second cylinder 602 is started to support the tube plate at the center of the annular bin through the orthopedic mechanism 6, then the knob 532 is continuously rotated, the tube plate is clamped and fixed at the position corresponding to the tube bundle through the clamping part 53 and the L-shaped clamping plate 535, and after the clamping part 53 finishes clamping the tube plate, the second cylinder 602 can be reversely started to reset the alignment disc 603.

After the tube plate clamping is completed, the second motor 513 is started to move to a proper position on the tube bundle by the tube plate carried by the alignment part 51, and the cutter 525, the third motor 522 and the first cylinder 524 are started respectively, so that the third motor 522 rotates by the second gear and the toothed ring 521, thereby rotating by the fixing frame 523, cutting the tube bundle by rotating by the third motor 522 by taking the annular bin as the center, and determining the cutting radius of the cutter 525 by the telescopic end of the first cylinder 524, thereby integrally cutting a plurality of tube bundles by taking the tube plate as a reference.

When the cutting part 52 finishes cutting the tube bundle, the second cylinder 602 is started again to move backwards with the alignment disc 603, so that the reaming rod 604 can firstly extrude the cut tube bundle from the inside to correct the cutting position of the tube bundle, thus avoiding the recess of the tube bundle in the cutting process, and when the tube bundle needs to be taken out after the cutting is finished, a worker only needs to pedal the pedal 416 to pull the alignment slide block 412 backwards.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a shell-and-tube heat exchanger tube bank automatic cutout equipment, includes fuselage (1), its characterized in that: the upper end face of the machine body (1) is fixedly provided with a first bearing frame (2) and a second bearing frame (3), the first bearing frame (2) and the second bearing frame (3) are both composed of supporting blocks and half-arc concave blocks, a plurality of rolling shafts are rotatably arranged in the half-arc concave blocks in a circumferential array mode, the two half-arc concave blocks are coaxially arranged, and a position correcting mechanism (4) for limiting the positions of a tube plate and a tube bundle is commonly arranged on the machine body (1) and the second bearing frame (3);

the correcting mechanism (4) comprises a positioning part (41) which is arranged on the machine body (1) and positioned at the rear end of the second bearing frame (3), and a rotating part (42) is arranged on the front end surface of the second bearing frame (3);

a cutting mechanism (5) for automatically and integrally cutting the tube bundle is arranged on the machine body (1) and positioned at the front end of the first bearing frame (2);

the cutting mechanism (5) comprises an alignment part (51) arranged on the machine body (1), a cutting part (52) is arranged on the front end surface of the alignment part (51), and a clamping part (53) used for loading the tube plate is arranged in the alignment part (51);

the upper end surface of the machine body (1) is provided with an orthopedic mechanism (6) which is positioned at the front side of the cutting mechanism (5) and is used for correcting the cut pipe orifice.

2. The automatic tube bundle cutting device for shell-and-tube heat exchangers according to claim 1, wherein: the utility model provides a location portion (41) is including first slide (411), support position slider (412), counterpoint recess (413), clamping lever (414), latch strip (415) and footboard (416), first slide (411) have been seted up to fuselage (1) and be located second carrier (3) rear end, slidable mounting has to support position slider (412) on first slide (411), be provided with counterpoint recess (413) that are used for restricting tube bank position in the terminal surface before supporting position slider (412), and counterpoint recess (413) are coaxial setting with half arc recess, clamping lever (414) of bilateral symmetry are installed through the hinge rotation that sets up to support position slider (412) lower extreme, fuselage (1) up end fixed mounting has latch strip (415) that are located clamping lever (414) below, and the front end of clamping lever (414) is contradicted in latch strip (415) through the hinge, bilateral symmetry clamping lever (414) rear end jointly fixed mounting have footboard (416).

3. The automatic tube bundle cutting device for shell-and-tube heat exchangers according to claim 2, wherein: the rotating part (42) comprises a half-arc slide way (421), a half-arc slide way (422), a first motor (423), a limiting block (424) and a rubber clamping tube arc block (425), the half-arc slide way (421) is fixedly arranged on the front end face of the half-arc concave block of the second bearing frame (3), the half-arc slide way (421) is internally provided with the half-arc slide way (422), the half-arc slide way (422) is internally provided with a first rack, the second bearing frame (3) is fixedly provided with the first motor (423) on the supporting block, the output end of the first motor (423) is fixedly sleeved with a first gear, the first gear is meshed with the first rack and connected with the first rack, symmetrical limiting blocks (424) are fixedly arranged at the left end and the right end of the half-arc slide way (422), a plurality of rubber clamping tube arc blocks (425) are internally arranged in the limiting blocks (424), and a side wall, which is mutually close to the rubber clamping tube arc blocks (425), is provided with a plurality of rubber clamping tube clamps in a linear array mode.

4. The automatic tube bundle cutting device for shell-and-tube heat exchangers according to claim 2, wherein: the alignment part (51) comprises a second slide way (511), a loading slide block (512), a second motor (513) and a screw rod (514), the second slide way (511) is arranged on the upper end face of the machine body (1) and located at the front end of the first bearing frame (2), the loading slide block (512) is arranged on the second slide way (511) in a sliding mode, the loading slide block (512) comprises an annular bin and a supporting slide block from top to bottom, the annular bin and the semi-arc concave block are arranged in a coaxial mode, the second motor (513) is fixedly arranged at the front end of the interior of the second slide way (511), the screw rod (514) is rotatably arranged in the second slide way (511), the screw rod (514) is fixedly connected with the output end of the second motor (513), and the screw rod (514) is in threaded connection with the supporting slide block.

5. The automatic tube bundle cutting device for shell-and-tube heat exchangers according to claim 4, wherein: cutting portion (52) are including ring gear (521), third motor (522), mount (523), first cylinder (524), cutting machine (525) and spacing slide bar (526), preceding terminal surface in annular storehouse rotates installs ring gear (521), fixed mounting has third motor (522) on the annular storehouse, and the fixed cover of output of third motor (522) is equipped with the second gear, and the second gear is connected with ring gear (521) meshing, preceding terminal surface fixed mounting of ring gear (521) has mount (523), and the preceding terminal surface of mount (523) is provided with the sliding ring, the telescopic end first cylinder (524) to the axle center of fixed mounting in mount (523), the telescopic end fixed mounting of first cylinder (524) has cutting machine (525), the preceding terminal surface fixed mounting of cutting machine (525) has spacing slide bar (526), and spacing slide bar (526) sliding connection is in the sliding ring.

6. The automatic tube bundle cutting device for shell-and-tube heat exchangers according to claim 4, wherein: clamping part (53) are including ring gear (531), knob (532), thread bush (533), stop collar (534) and L type grip block (535), ring gear (531) are installed in inside rear end face rotation in annular storehouse, rotate on the annular storehouse and install knob (532) that runs through its lateral wall, and fixed cover is equipped with first bevel gear on knob (532), and first bevel gear is connected with ring gear (531) meshing, rotate in annular storehouse with circumference array mode and install a plurality of thread bushes (533) that run through annular storehouse inside wall, the second bevel gear and ring gear (531) meshing connection of establishing through fixed cover on thread bush (533), the other end rotation of thread bush (533) is connected with stop collar (534), and stop collar (534) and annular storehouse fixed connection, threaded rod and L type grip block (535) threaded connection through setting up in thread bush (533), and stop collar (534) and threaded rod pass through the recess and the lug sliding connection that set up.

7. The automatic tube bundle cutting device for shell-and-tube heat exchangers according to claim 2, wherein: the correcting mechanism (6) comprises a correcting support frame (601), a second air cylinder (602), a correcting disc (603), a reaming rod (604) and a correcting slide rod (605), the correcting support frame (601) is fixedly arranged at the front end of the upper end face of the machine body (1), the second air cylinder (602) is fixedly arranged on the correcting support frame (601), the correcting disc (603) is fixedly arranged at the telescopic end of the second air cylinder (602), the correcting disc (603) and the half-arc concave block are arranged coaxially, the reaming rod (604) for extruding the tube bundle from inside to outside is fixedly arranged at the rear end face of the correcting disc (603), and the correcting disc (603) is in sliding connection with the correcting support frame (601) through the correcting slide rod (605) which is symmetrically and fixedly arranged left and right.