CN117754198B

CN117754198B - Large-scale pipeline welding device

Info

Publication number: CN117754198B
Application number: CN202410197612.8A
Authority: CN
Inventors: 黄亚州; 袁小迅; 姜秀宝; 任何; 柳磊; 巩睿; 乔帅辉
Original assignee: Shandong Shengyue Petrochemical Engineering Construction Co ltd
Current assignee: Shandong Shengyue Petrochemical Engineering Construction Co ltd
Priority date: 2024-02-22
Filing date: 2024-02-22
Publication date: 2024-04-16
Anticipated expiration: 2044-02-22
Also published as: CN117754198A

Abstract

The invention relates to the technical field of pipeline welding, and particularly discloses a large-scale pipeline welding device which comprises a mounting seat, wherein a rotating ring is rotatably connected to the inner wall of the mounting seat, a welding head is arranged on the inner wall of the rotating ring, one end of the rotating ring is provided with a driving mechanism, a cleaning mechanism is arranged on the inner wall of the rotating ring, the cleaning mechanism comprises a mounting assembly, a driving assembly, a rack assembly, a cleaning assembly, a scraping assembly and two first telescopic members, and the top ends of the first telescopic members are arranged on the inner wall of the rotating ring; according to the large-scale pipeline welding device, the driving assembly drives the cleaning assembly to reciprocate between the two pipelines through the rack assembly, so that oil stains at the port of the pipeline are scraped off, and meanwhile, the scraping assembly scrapes off the oil stains on the cleaning assembly, so that the cleaning assembly can continuously clean the end parts of the pipelines, a worker does not need to manually clean the end parts of the pipelines, and the end parts of the pipelines are convenient to clean.

Description

Large-scale pipeline welding device

Technical Field

The invention relates to the technical field of pipeline welding, in particular to a large-scale pipeline welding device.

Background

Large pipes are often referred to as those pipes having a large outer diameter and wall thickness, which may be designed to a specific size and specification for engineering or application requirements, and according to domestic industry standards large pipes are often referred to as steel pipes having an outer diameter above 219mm, a wall thickness above 20mm, and a length of at least 6 meters. These pipes may be widely used in industrial and civil construction, playing a critical role. The size range of the large-scale steel pipe can be expanded to larger values, such as the outer diameter of 3048mm and the wall thickness of 50mm, the ends of all the pipelines need to be polished to form grooves before welding, so that the two ends of the pipelines are tapered, the deformation condition of the pipelines can be better controlled during welding, but the pipelines are easy to be polluted by oil stains at the groove parts of the pipelines due to a large amount of oil stains in the workshop environment after polishing, and therefore, the groove parts of the pipelines need to be cleaned once before polishing.

The automatic girth welding device and method for the large pipeline disclosed in the Chinese patent application publication No. CN113199185A adopt a fixed circular track, the running of a welding vehicle cannot be influenced by the surface evenness of the pipeline, and in addition, the circular T-shaped track is matched with a fixed wheel to limit the welding vehicle on the circular welding track, so that the welding vehicle can stably run and cannot be influenced by wind blowing.

Because the pipeline is easy to be polluted by greasy dirt in the transportation process of the factory, the port of the pipeline is polluted by the greasy dirt, before welding, the port of the pipeline is required to be cleaned by manual work, and then the pipeline is welded, but the pipe diameter of the pipeline is larger, so that the cleaning of the pipeline is inconvenient, and the construction efficiency is also influenced.

We have therefore proposed a large pipe welding apparatus in order to solve the problems set out above.

Disclosure of Invention

The invention provides a large-scale pipeline welding device, and aims to solve the problem that pipeline ports are inconvenient to clean during welding in the related art.

The large-scale pipeline welding device of the invention comprises:

the mounting seat is rotationally connected with the rotating ring on the inner wall of the mounting seat, a welding head is arranged on the inner wall of the rotating ring, and a driving mechanism is arranged at one end of the rotating ring;

the cleaning mechanism comprises a mounting component, a driving component, a rack component, a cleaning component, a scraping component and two first telescopic components, wherein the top ends of the first telescopic components are arranged on the inner wall of the rotating ring, the mounting component is arranged on the two first telescopic components, the driving component is arranged at the top of the mounting component, the rack component is arranged on one side of the mounting component, the cleaning component is arranged on one side of the bottom of the mounting component, the cleaning component is positioned under one of the first telescopic components, and the cleaning component can be in contact with a groove of a pipeline;

the adjusting component is arranged on one side of the rotating ring so as to adjust the height of the cleaning component, the adjusting component comprises a second telescopic part arranged at the top of the mounting seat, a second connecting rod is arranged at the movable end of the second telescopic part, the second connecting rod is arranged inside the mounting seat, a lifting plate is arranged at the bottom end of the second connecting rod, and an arc-shaped block is arranged on one side of the lifting plate.

Preferably, the installation component is including setting up the mounting panel on first extensible member, the bottom of mounting panel is connected with the second gear through the dwang rotation, the second gear meshes with rack component, clean subassembly respectively, one side rotation of mounting panel is connected with the axis of rotation, the axis of rotation can contact with the arc piece.

Preferably, two first mounting frames are installed on one side of the top of the mounting plate, a connecting shaft is connected between the two first mounting frames in a rotating mode, and a first belt pulley and a second belt pulley are installed on the connecting shaft of the two first mounting frames.

Preferably, the driving assembly comprises a second driving piece, a connecting column is arranged on the second driving piece, a third belt pulley is arranged on the outer side of the connecting column and is in transmission connection with the first belt pulley through a belt, a rotating disc is arranged at one end of the connecting column, a second fixing rod is arranged at one end of the rotating disc, and a hinged plate is hinged to the outer side of the second fixing rod.

Preferably, the rack assembly comprises a guide rail arranged on one side of the mounting plate, a sliding block is connected to the guide rail in a sliding manner, one side of the top of the sliding block is hinged to the hinge plate through a hinge seat, a second mounting frame is arranged on one side of the sliding block, a straight rack is arranged at the bottom of the second mounting frame, and the straight rack is meshed with a second gear.

Preferably, the cleaning component comprises a rotating cylinder rotatably connected to one side of the bottom of the mounting plate, the cleaning head is mounted at the bottom end of the rotating cylinder, an outer toothed ring is mounted on the outer side of the rotating cylinder, and the second gear is meshed with the outer toothed ring and the straight toothed bar respectively.

Preferably, the first telescopic member comprises a connecting cylinder, a first connecting rod and a first elastic member, the bottom end of the connecting cylinder is arranged at the top of the mounting plate, the top end of the first connecting rod is arranged on the inner wall of the rotating ring, the first elastic member is sleeved on the outer side of the connecting cylinder, and the bottom end of the first connecting rod is provided with the sliding member.

Preferably, the sliding grooves are formed in the bottoms of the two sides of the connecting cylinder, sliding holes for the connecting cylinder to slide are formed in the mounting plate, two fixing blocks are mounted on the inner wall of each sliding hole, and the two fixing blocks are respectively arranged in the two sliding grooves of the connecting cylinder.

Preferably, the bottom of connecting cylinder rotates and is connected with the external spline shaft, first dead lever is installed to the bottom of external spline shaft, the vibrations piece is installed to the bottom of first dead lever, the outside sliding connection of external spline shaft has the spline housing, the spline housing is installed on the inner wall of rotating cylinder, the eccentric wheel is installed in the outside of first dead lever.

Preferably, the mounting groove has all been seted up to the both sides of slider, install the second elastic component on the inner wall of mounting groove, the slide is installed to the one end of second elastic component, spacing post is installed to the one end of slide, set up the groove that supplies spacing post to wear out on the connecting cylinder.

By adopting the technical scheme, the invention has the beneficial effects that: the driving mechanism drives the welding head and the cleaning component to rotate around the pipeline simultaneously through the rotating ring, and in the rotating process, the driving component drives the cleaning component to rotate back and forth between the two pipelines through the rack component, so that greasy dirt at the port of the pipeline is scraped down, and meanwhile, the greasy dirt on the cleaning component is scraped down by the scraping component, so that the cleaning component can continuously clean the end part of the pipeline, a worker is not required to clean the end part of the pipeline manually, the end part cleaning of the pipeline is convenient, and the welding head is convenient to weld the pipeline.

Drawings

Fig. 1 is a schematic overall structure of a first embodiment of the present invention.

Fig. 2 is a schematic structural view of a first driving member according to a first embodiment of the present invention.

Fig. 3 is a schematic structural view of a rack assembly according to a first embodiment of the present invention.

Fig. 4 is a schematic structural view of a rack bar according to a first embodiment of the present invention.

Fig. 5 is a schematic view showing an internal structure of a connection cover according to a first embodiment of the present invention.

Fig. 6 is a schematic view showing an internal structure of a connecting cylinder according to a first embodiment of the present invention.

Fig. 7 is a schematic structural view of a lifter plate according to a first embodiment of the present invention.

Fig. 8 is a schematic structural view of a cleaning head according to a second embodiment of the present invention.

Fig. 9 is a schematic structural view of a mounting plate according to a second embodiment of the present invention.

Fig. 10 is a schematic view showing an internal structure of a cleaning head according to a second embodiment of the present invention.

Fig. 11 is a schematic view of the internal structure of a slider according to a second embodiment of the present invention.

Reference numerals:

1. a mounting base;

21. a rotating ring; 22. a welding head;

31. an inner gear ring; 32. a first driving member; 33. a first connection frame; 34. a first gear;

41. a first telescopic member; 411. a connecting cylinder; 412. a first connecting rod; 413. a first elastic member; 414. a slider; 4141. a mounting groove; 4142. a second elastic member; 4143. a slide plate; 4144. a limit column; 415. a chute; 416. an external spline shaft; 417. a first fixing rod; 418. a vibrating block; 419. an eccentric wheel; 42. a mounting assembly; 421. a mounting plate; 422. a first mounting frame; 423. a first pulley; 424. a second pulley; 425. a second gear; 426. a rotating shaft; 427. a slide hole; 428. a fixed block; 43. a drive assembly; 431. a second driving member; 432. a second connection frame; 433. a rotating disc; 434. a second fixing rod; 435. a hinged plate; 436. a connecting column; 437. a third pulley; 44. a rack assembly; 441. a guide rail; 442. a slide block; 443. a second mounting frame; 444. a straight rack; 45. a cleaning assembly; 451. a rotating cylinder; 452. a cleaning head; 453. an outer toothed ring; 454. a spline housing; 46. a scraping assembly; 461. a connection cover; 462. a fourth pulley; 463. a driving roller; 464. a transmission member; 465. a connecting seat; 466. a first scraper; 467. a second scraper; 468. a fixing plate; 469. a brush;

51. a second telescopic member; 52. a second connecting rod; 53. a lifting plate; 54. arc blocks.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.

First embodiment:

as shown in fig. 1 to 7, the large-scale pipe welding device of the present invention comprises a mounting seat 1, a rotating ring 21, a welding head 22, a driving mechanism, a cleaning mechanism and an adjusting component, wherein the driving mechanism drives the welding head 22 to rotate with the axis of the mounting seat 1 as the center, so that two pipes are welded, and simultaneously the cleaning mechanism and the welding head 22 synchronously rotate so as to clean the end parts of the pipes before welding.

As shown in fig. 1, the rotating ring 21 is rotatably connected to the inner wall of the mounting seat 1, the driving mechanism is connected to the rotating ring 21, the welding head 22 and the cleaning mechanism are both arranged on the inner wall of the rotating ring 21, a space is reserved between the welding head 22 and the cleaning mechanism so as to achieve the effect of cleaning before welding, the adjusting component is arranged on one side of the rotating ring 21, and after the cleaning mechanism completes cleaning of a pipeline, the adjusting component can drive the cleaning mechanism to separate from the pipeline so as to adjust the height of the cleaning mechanism, and the influence on the normal welding of the welding head 22 is avoided.

As shown in fig. 1 to 3, the cleaning mechanism includes a mounting assembly 42, a driving assembly 43, a rack assembly 44, a cleaning assembly 45, and two first telescopic members 41, the top ends of the first telescopic members 41 are disposed on the inner wall of the rotating ring 21, the mounting assembly 42 is disposed on the two first telescopic members 41, the driving assembly 43 is disposed at the top of the mounting assembly 42, the rack assembly 44 is disposed at one side of the mounting assembly 42, the cleaning assembly 45 is disposed at one side of the bottom of the mounting assembly 42, and the cleaning assembly 45 is located under one of the first telescopic members 41.

When the pipeline end is cleaned, the cleaning assembly 45 is arranged between two pipelines, the cleaning assembly 45 can be in contact with a groove of the pipeline, and then the driving assembly 43 can drive the cleaning assembly 45 to rotate reciprocally through the rack assembly 44, so that the cleaning assembly 45 can remove oil stains on the pipeline end, and the influence on the welding quality of the pipeline is avoided.

With continued reference to fig. 1 to 3, the mounting assembly 42 includes a mounting plate 421 disposed on the first telescopic member 41, two first mounting frames 422 are mounted on one side of the top of the mounting plate 421, a connecting shaft is rotatably connected between the two first mounting frames 422, a first belt pulley 423 and a second belt pulley 424 are mounted on the connecting shaft of the two first mounting frames 422, a second gear 425 is rotatably connected to the bottom of the mounting plate 421 through a rotating rod, the second gear 425 is respectively engaged with the rack assembly 44 and the cleaning assembly 45, a rotating shaft 426 is rotatably connected to one side of the mounting plate 421, the rotating shaft 426 can contact with the adjusting assembly, and the adjusting assembly can drive the mounting plate 421 to move upward through the rotating shaft 426.

As shown in fig. 1 to 4, the driving assembly 43 includes a second driving member 431, the second driving member 431 is a servo motor, a second connection frame 432 is mounted on the outer side of the second driving member 431, the bottom of the second connection frame 432 is mounted on the top of the mounting plate 421, the second driving member 431 is provided with a connection post 436 through a driving shaft thereon, the outer side of the connection post 436 is provided with a third belt pulley 437, the third belt pulley 437 is in transmission connection with the first belt pulley 423 through a belt, the diameter of the third belt pulley 437 is larger than that of the first belt pulley 423, a rotating disc 433 is mounted on one end of the connection post 436, a second fixing rod 434 is mounted on one end of the rotating disc 433, the second fixing rod 434 is located at the edge of the rotating disc 433, and the outer side of the second fixing rod 434 is hinged with a hinge plate 435.

As shown in fig. 3 and 4, the rack assembly 44 includes a guide rail 441 mounted on one side of the mounting plate 421, a sliding block 442 is slidably connected to the guide rail 441, a top side of the sliding block 442 is hinged to the hinge plate 435 through a hinge seat, a second mounting frame 443 is mounted on one side of the sliding block 442, a straight rack 444 is mounted on a bottom of the second mounting frame 443, and the straight rack 444 is meshed with the second gear 425.

The second driving member 431 drives the rotating disc 433 to rotate through the connecting post 436, and meanwhile, the rotating disc 433 drives the second fixing rod 434 to rotate, and the second fixing rod 434 drives the sliding block 442 to reciprocate on the guide rail 441 through the hinge plate 435 so as to drive the straight rack 444 to reciprocate.

As shown in fig. 1 to 4, the cleaning assembly 45 includes a rotary drum 451 rotatably coupled to one side of the bottom of the mounting plate 421, a cleaning head 452 is mounted at the bottom end of the rotary drum 451, the cleaning head 452 is tapered, the inside of the cleaning head 452 communicates with the inside of the rotary drum 451, an outer gear ring 453 is mounted at the outside of the rotary drum 451, the second gear 425 is engaged with the outer gear ring 453 and the straight gear 444, respectively, and the diameter of the outer gear ring 453 is smaller than that of the second gear 425.

During cleaning, the cleaning head 452 is arranged at the groove of the pipeline, then the second driving part 431 is started to enable the straight rack 444 to reciprocate, at the moment, the straight rack 444 drives the outer toothed ring 453 to reciprocate through the second gear 425, and meanwhile, the outer toothed ring 453 drives the cleaning head 452 to reciprocate through the rotating cylinder 451, so that oil stains at the end part of the pipeline are removed.

As shown in fig. 1 and 2, the cleaning mechanism further includes a scraping assembly 46, and the scraping assembly 46 is disposed on one side of the cleaning head 452 to scrape off the oil adhered to the cleaning head 452, so that the cleaning head 452 can continuously clean the end of the pipe.

As shown in fig. 1 to 3 and 5, the scraping assembly 46 includes a connection cover 461, the connection cover 461 is disposed at one side of the cleaning head 452, a fixing plate 468 is mounted at the top of the connection cover 461, the fixing plate 468 is mounted at the bottom of the mounting plate 421, the connection cover 461 has a vertical section, an inclined section and a horizontal section, the vertical section of the connection cover 461 is disposed at one side of the rotation barrel 451, a space is provided between the inclined section of the connection cover 461 and the cleaning head 452 to prevent oil stains on the cleaning head 452 from being directly scraped by the inclined section of the connection cover 461, the horizontal section of the connection cover 461 is disposed at the bottom end of the cleaning head 452, and a through slot is provided at one side of the inclined section of the connection cover 461 close to the cleaning head 452.

As shown in fig. 3, a fourth pulley 462 is provided at one side of the connecting cover 461, and the fourth pulley 462 is drivingly connected to the second pulley 424 by a belt.

As shown in fig. 3 and 5, two driving rollers 463 are rotatably connected in the connecting cover 461, a fourth belt pulley 462 is fixed to one of the driving rollers 463, a driving member 464 is disposed on the two driving rollers 463, in this embodiment, the driving member 464 is a driving belt, a plurality of connecting seats 465 are mounted on the driving member 464, the plurality of connecting seats 465 are uniformly distributed along the track of the driving member 464, one end of the connecting seat 465 is hinged with a first scraper 466 through a pin, an elastic sheet (not shown in the drawing) is disposed on the connecting seat 465, the elastic sheet on the connecting seat 465 is connected with the first scraper 466 to drive the first scraper 466 to reset, and the first scraper 466 can contact with the cleaning head 452 to scrape greasy dirt on the cleaning head 452.

The second driving member 431 drives the third belt pulley 437 to rotate through the connecting post 436, the third belt pulley 437 drives the first belt pulley 423 to rotate through a belt, the first belt pulley 423 drives the second belt pulley 424 to rotate through a connecting shaft on the first mounting frame 422, meanwhile, the second belt pulley 424 drives the driving roller 463 in the fourth belt pulley 462 to rotate through the belt, the driving roller 463 drives the first scraping plate 466 on the connecting seat 465 to move through the driving member 464, and the first scraping plate 466 is contacted with the cleaning head 452 in the moving process of the first scraping plate 466, so that oil stains on the cleaning head 452 are scraped.

As shown in fig. 5, the second scraper 467 is mounted on the inner top wall of the horizontal section of the connecting cover 461, when the first scraper 466 moves to the bottommost position, the first scraper 466 gradually rotates upwards along with the rotation of the driving roller 463, at this time, the first scraper 466 contacts with the second scraper 467 to scrape the oil dirt scraped off by the first scraper 466, and in the process of contacting the first scraper 466 with the second scraper 467, the first scraper 466 is blocked by the second scraper 467 to rotate in the connecting seat 465, at this time, the elastic piece in the connecting seat 465 compresses, and when the first scraper 466 passes over the second scraper 467, the elastic piece in the connecting seat 465 resets to drive the first scraper 466 to reset, so that the first scraper 466 continues to clean the cleaning head 452.

As shown in fig. 1 to 3 and 6, the first telescopic member 41 includes a connecting barrel 411, a first connecting rod 412 and a first elastic member 413, the bottom end of the connecting barrel 411 is mounted on the top of the mounting plate 421, the top end of the first connecting rod 412 is mounted on the inner wall of the rotating ring 21, the bottom end of the first connecting rod 412 is located inside the connecting barrel 411, the first elastic member 413 is sleeved on the outer side of the connecting barrel 411, in this embodiment, the first elastic member 413 is a spring, the top end of the first elastic member 413 is mounted on the inner wall of the rotating ring 21, and the bottom end of the first elastic member 413 is mounted on the top of the mounting plate 421.

As shown in fig. 6, the bottom end of the first connecting rod 412 is provided with a sliding member 414, in this embodiment, the sliding member 414 is cylindrical, and in other embodiments, the sliding member 414 is rectangular to prevent the connecting barrel 411 from sliding off the first connecting rod 412.

As shown in fig. 1 and 2, the driving mechanism includes an inner gear ring 31, a first driving member 32, a first connection frame 33 and a first gear 34, the inner gear ring 31 is mounted at one end of the rotating ring 21, the first driving member 32 is disposed at one side of the inner gear ring 31, the first driving member 32 is a servo motor, the first connection frame 33 is mounted at the outer side of the first driving member 32, the first connection frame 33 is mounted on the inner wall of the mounting seat 1, the first driving member 32 is mounted with the first gear 34 through a driving shaft thereon, and the first gear 34 is meshed with the inner gear ring 31.

The first driving member 32 drives the inner gear ring 31 to rotate in the mounting seat 1 through the first gear 34, the inner gear ring 31 drives the first connecting rod 412 to rotate by taking the axis of the inner gear ring 31 as the center through the rotating ring 21, and meanwhile, the mounting plate 421 synchronously rotates along with the first connecting rod 412, so that the cleaning head 452 can rotate for one circle at the end part of the pipeline.

As shown in fig. 1 and 7, the adjusting assembly includes a second telescopic member 51 installed at the top of the installation seat 1, in this embodiment, the second telescopic member 51 is an air cylinder, in other embodiments, the second telescopic member 51 is a hydraulic cylinder or an electric telescopic rod, a second connecting rod 52 is installed at a movable end of the second telescopic member 51, the second connecting rod 52 is disposed in the installation seat 1, a lifting plate 53 is installed at a bottom end of the second connecting rod 52, an arc-shaped block 54 is installed at one side of the lifting plate 53, and the rotating shaft 426 can contact with the arc-shaped block 54.

When the mounting plate 421 is about to rotate for one circle, the rotating shaft 426 on the mounting plate 421 is in contact with the arc-shaped block 54, and after the mounting plate 421 rotates for one circle, the second telescopic piece 51 drives the lifting plate 53 to move upwards through the second connecting rod 52, so that the mounting plate 421 is driven to move upwards, and meanwhile the cleaning head 452 moves upwards synchronously with the mounting plate 421, so that the cleaning head 452 is separated from the pipeline.

When the pipelines are welded, the two pipelines are aligned and fixed through the clamp, then the second driving part 431 is started, at the moment, the second driving part 431 drives the second fixing rod 434 to rotate through the rotating disc 433, the second fixing rod 434 drives the straight rack 444 to reciprocate through the hinged plate 435, the straight rack 444 drives the outer toothed ring 453 to reciprocate through the second gear 425, meanwhile, the outer toothed ring 453 drives the cleaning head 452 to reciprocate through the rotating cylinder 451 so as to remove oil stains at the end parts of the pipelines, and the cleaning head 452 moves on the surface of the cleaning head 452 in the rotating process, so that the oil stains on the cleaning head 452 are scraped.

After the cleaning head 452 starts to rotate, the first driving member 32 is started, at this time, the first driving member 32 drives the rotating ring 21 to rotate, meanwhile, the welding head 22 and the cleaning head 452 synchronously rotate along with the rotating ring 21, after the welding head 22 reaches the cleaned area of the cleaning head 452, the welding head 22 starts to weld the two pipelines, so that the effect of welding while cleaning is achieved, manual cleaning by a worker is not needed, and the labor burden of the worker is reduced.

When the cleaning head 452 rotates around the pipe end, the cleaning of the pipe end is completed at this time, and meanwhile, the rotating shaft 426 on the mounting plate 421 contacts with the arc-shaped block 54, and at this time, the second telescopic member 51 drives the lifting plate 53 to move upwards through the second connecting rod 52, so that the cleaning head 452 is separated from the pipe, and after the cleaning head 452 is separated from the pipe, the rotating ring 21 continues to rotate, so that the welding head 22 welds around the pipe, and when the welding head 22 finishes welding the pipe, the first driving member 32 is closed, and at this time, the rotating ring 21 stops rotating.

In order to ensure the quality and strength of the welding seam, some pipelines need to be welded for two circles or even more circles, but in order to ensure the welding quality, welding slag generated after welding needs to be manually removed, so that time is wasted, and in order to overcome the defects, the invention provides a second embodiment.

As shown in fig. 8 to 11, a second embodiment of the present invention is different from the first embodiment in that: the bottoms of two sides of the connecting barrel 411 are provided with sliding grooves 415, the mounting plate 421 is provided with sliding holes 427 for the connecting barrel 411 to slide, the inner wall of each sliding hole 427 is provided with two fixed blocks 428, and the two fixed blocks 428 are respectively arranged in the two sliding grooves 415 of the connecting barrel 411.

As shown in fig. 8 and 10, the bottom end of the connecting barrel 411 is rotatably connected with an external spline shaft 416, a first fixing rod 417 is installed at the bottom end of the external spline shaft 416, a vibration block 418 is installed at the bottom end of the first fixing rod 417, a hole through which the vibration block 418 passes is formed at the bottom end of the cleaning head 452, a spline housing 454 is slidably connected to the outer side of the external spline shaft 416, the spline housing 454 is installed on the inner wall of the rotating barrel 451, an eccentric wheel 419 is installed on the outer side of the first fixing rod 417, and the eccentric wheel 419 is arranged between the spline housing 454 and the vibration block 418.

The rotary cylinder 451 is in the pivoted in-process, and the rotary cylinder 451 passes through the spline housing 454 and drives external spline shaft 416 and rotate, and external spline shaft 416 passes through first dead lever 417 and drives vibrations piece 418 and eccentric wheel 419 and rotate, and the eccentric wheel 419 can make vibrations piece 418 produce vibrations at pivoted in-process.

As shown in fig. 11, mounting grooves 4141 are formed on both sides of the sliding member 414, a second elastic member 4142 is mounted on an inner wall of the mounting groove 4141, in this embodiment, the second elastic member 4142 is a spring, in other embodiments, the second elastic member 4142 is an elastic sheet, a sliding plate 4143 is mounted at one end of the second elastic member 4142, a limiting column 4144 is mounted at one end of the sliding plate 4143, and a groove through which the limiting column 4144 passes is formed on the connecting barrel 411.

In the process of upward movement of the mounting plate 421, the rotary cylinder 451 and the cleaning head 452 move upward synchronously with the mounting plate 421, the fixed block 428 slides in the runner 415 of the connecting cylinder 411, and when the fixed block 428 reaches the limit position of the runner 415, the vibration block 418 completely penetrates out of the cleaning head 452, and as the mounting plate 421 moves upward continuously, the fixed block 428 pushes the connecting cylinder 411 upward, the first elastic member 413 compresses, so that the vibration block 418 and the cleaning head 452 move upward synchronously.

When the vibration block 418 exceeds the welding height, the second elastic member 4142 drives the limiting post 4144 through the sliding plate 4143 to penetrate out of the connecting barrel 411 so as to fix the connecting barrel 411, and as the rotating ring 21 continues to rotate, the vibration block 418 passes over the end of the welding seam and contacts with the top of the welding seam, and meanwhile, the rotating shaft 426 is separated from the arc-shaped block 54, at this time, the first elastic member 413 resets and drives the mounting plate 421 to move downwards, and the height of the connecting barrel 411 is raised due to the limitation of the limiting post 4144, so that the vibration block 418 is still positioned outside the cleaning head 452 after the mounting plate 421 is reset.

Then, the second driving member 431 is started to rotate the rotating cylinder 451, so as to drive the vibration block 418 and the eccentric wheel 419 to rotate, along with the continuous rotation of the rotating ring 21, the rotating shaft 426 on the mounting plate 421 is gradually separated from the arc-shaped block 54 on the lifting plate 53, at this time, the first elastic member 413 resets and drives the mounting plate 421 to move downwards, and meanwhile, the mounting plate 421 drives the cleaning head 452 and the vibration block 418 to move downwards, so that the vibration block 418 is in contact with the welding seam, at this time, the welding seam can be vibrated through the vibration block 418, and welding slag on the welding seam falls off, so that the influence on welding quality is avoided.

As shown in fig. 8, the brush 469 is installed on one side of the bottom of the connecting cover 461, when the vibration block 418 extends out, the brush 469 is located on one side of the vibration block 418, and the vibrated welding slag can be cleaned from the welding seam through the brush 469 without manual cleaning, so that the labor intensity of workers is reduced.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.

Claims

1. A large pipe welding apparatus, comprising:

the mounting seat (1), the inner wall of the mounting seat (1) is rotationally connected with the rotating ring (21), the inner wall of the rotating ring (21) is provided with the welding head (22), and one end of the rotating ring (21) is provided with the driving mechanism;

the cleaning mechanism is arranged on the inner wall of the rotating ring (21) and comprises a mounting assembly (42), a driving assembly (43), a rack assembly (44), a cleaning assembly (45), a scraping assembly (46) and two first telescopic pieces (41), the top ends of the first telescopic pieces (41) are arranged on the inner wall of the rotating ring (21), the mounting assembly (42) is arranged on the two first telescopic pieces (41), the driving assembly (43) is arranged on the top of the mounting assembly (42), the rack assembly (44) is arranged on one side of the mounting assembly (42), the cleaning assembly (45) is arranged on one side of the bottom of the mounting assembly (42), and the cleaning assembly (45) is positioned right below one of the first telescopic pieces (41) and can be in contact with a groove of a pipeline;

the mounting assembly (42) comprises a mounting plate (421) arranged on the first telescopic piece (41), a second gear (425) is rotatably connected to the bottom of the mounting plate (421) through a rotating rod, the second gear (425) is respectively meshed with the rack assembly (44) and the cleaning assembly (45), a rotating shaft (426) is rotatably connected to one side of the mounting plate (421), two first mounting frames (422) are mounted on one side of the top of the mounting plate (421), a connecting shaft is rotatably connected between the two first mounting frames (422), and a first belt pulley (423) and a second belt pulley (424) are mounted on the connecting shaft of the two first mounting frames (422);

the cleaning assembly (45) comprises a rotating cylinder (451) rotatably connected to one side of the bottom of the mounting plate (421), a cleaning head (452) is mounted at the bottom end of the rotating cylinder (451), the cleaning head (452) is conical, the scraping assembly (46) is arranged on one side of the cleaning head (452) to scrape oil stains adhered to the cleaning head (452) so that the cleaning head (452) can continuously clean the end of a pipeline, the inside of the cleaning head (452) is communicated with the inside of the rotating cylinder (451), an outer toothed ring (453) is mounted on the outer side of the rotating cylinder (451), the second gear (425) is meshed with the outer toothed ring (453) and a straight toothed bar (444) respectively, and the diameter of the outer toothed ring (453) is smaller than that of the second gear (425);

the scraping assembly (46) comprises a connecting cover (461), the connecting cover (461) is arranged on one side of the cleaning head (452), a fixing plate (468) is arranged at the top of the connecting cover (461), the fixing plate (468) is arranged at the bottom of the mounting plate (421), the connecting cover (461) is provided with a vertical section, an inclined section and a horizontal section, the vertical section of the connecting cover (461) is arranged on one side of the rotating cylinder (451), a distance is reserved between the inclined section of the connecting cover (461) and the cleaning head (452) so as to prevent greasy dirt on the cleaning head (452) from being scraped by the inclined section of the connecting cover (461), the horizontal section of the connecting cover (461) is arranged at the bottom end of the cleaning head (452), one side of the inclined section of the connecting cover (461) close to the cleaning head (452) is provided with a through groove, one side of the connecting cover (461) is provided with a fourth belt pulley (462), the fourth belt pulley (462) is in transmission connection with a second belt pulley (424), the inside of the connecting cover (461) is in rotation with a distance between the inclined section and the cleaning head (452), two transmission rollers (463) are fixedly arranged on one of the two transmission rollers (463) and the two transmission members (463) are fixedly arranged on the two transmission members (463), the connecting seats (465) are uniformly distributed along the track of the transmission member (464), one end of each connecting seat (465) is hinged with a first scraping plate (466), each connecting seat (465) is provided with an elastic piece, the elastic pieces on each connecting seat (465) are connected with the corresponding first scraping plate (466) so as to drive the corresponding first scraping plate (466) to reset, and the corresponding first scraping plate (466) can be contacted with the corresponding cleaning head (452) so as to scrape oil stains on the corresponding cleaning head (452);

the adjusting component is arranged on one side of the rotating ring (21) so as to adjust the height of the cleaning component (45), the adjusting component comprises a second telescopic piece (51) arranged at the top of the mounting seat (1), a second connecting rod (52) is arranged at the movable end of the second telescopic piece (51), the second connecting rod (52) is arranged inside the mounting seat (1), a lifting plate (53) is arranged at the bottom end of the second connecting rod (52), an arc-shaped block (54) is arranged on one side of the lifting plate (53), and the rotating shaft (426) can be in contact with the arc-shaped block (54).

2. The large pipe welding apparatus as claimed in claim 1, wherein the driving assembly (43) includes a second driving member (431), a connection post (436) is installed on the second driving member (431), a third belt pulley (437) is installed on the outer side of the connection post (436), the third belt pulley (437) is in transmission connection with the first belt pulley (423) through a belt, a rotating disc (433) is installed at one end of the connection post (436), a second fixing rod (434) is installed at one end of the rotating disc (433), and a hinged plate (435) is hinged on the outer side of the second fixing rod (434).

3. The large pipe welding apparatus as claimed in claim 2, wherein the rack assembly (44) includes a guide rail (441) mounted on one side of the mounting plate (421), a slider (442) is slidably connected to the guide rail (441), a top side of the slider (442) is hinged to the hinge plate (435) through a hinge seat, a second mounting frame (443) is mounted on one side of the slider (442), a straight rack (444) is mounted on a bottom of the second mounting frame (443), and the straight rack (444) is meshed with the second gear (425).

4. A large pipe welding apparatus according to claim 3, wherein the cleaning assembly (45) comprises a rotary drum (451) rotatably connected to one side of the bottom of the mounting plate (421), a cleaning head (452) is mounted at the bottom end of the rotary drum (451), an outer toothed ring (453) is mounted at the outer side of the rotary drum (451), and the second gear (425) is meshed with the outer toothed ring (453) and the straight toothed bar (444), respectively.

5. A large pipe welding apparatus according to claim 3, wherein the first expansion member (41) comprises a connecting cylinder (411), a first connecting rod (412) and a first elastic member (413), the bottom end of the connecting cylinder (411) is mounted at the top of the mounting plate (421), the top end of the first connecting rod (412) is mounted on the inner wall of the rotating ring (21), the first elastic member (413) is sleeved outside the connecting cylinder (411), and the bottom end of the first connecting rod (412) is mounted with a sliding member (414).

6. The large-scale pipeline welding device according to claim 5, wherein sliding grooves (415) are formed in the bottoms of two sides of the connecting barrel (411), sliding holes (427) for the connecting barrel (411) to slide are formed in the mounting plate (421), two fixing blocks (428) are mounted on the inner wall of the sliding holes (427), and the two fixing blocks (428) are respectively arranged in the two sliding grooves (415) of the connecting barrel (411).

7. The large pipe welding device according to claim 6, wherein the bottom end of the connecting cylinder (411) is rotatably connected with an external spline shaft (416), a first fixing rod (417) is installed at the bottom end of the external spline shaft (416), a vibration block (418) is installed at the bottom end of the first fixing rod (417), a spline housing (454) is slidably connected to the outer side of the external spline shaft (416), the spline housing (454) is installed on the inner wall of the rotating cylinder (451), and an eccentric wheel (419) is installed on the outer side of the first fixing rod (417).

8. The large pipe welding device according to claim 7, wherein the two sides of the sliding member (414) are provided with mounting grooves (4141), the inner wall of the mounting groove (4141) is provided with a second elastic member (4142), one end of the second elastic member (4142) is provided with a sliding plate (4143), one end of the sliding plate (4143) is provided with a limiting column (4144), and the connecting cylinder (411) is provided with a groove for the limiting column (4144) to penetrate.