阅读说明：本技术 一种大口径厚壁管材分切用管道输送装置及其工作方法 (Pipeline conveying device for slitting large-diameter thick-wall pipe and working method thereof ) 是由 刘俊峰 刘文江 万刚 田祥军 于 2021-08-09 设计创作，主要内容包括：本发明公开一种大口径厚壁管材分切用管道输送装置及其工作方法,包括第一输送通道、第二输送通道,第一输送通道、第二输送通道内壁均安装有三个限位机构,第一输送通道转动安装于旋转台上,旋转台转动安装于第一底座上,第二输送通道转动安装于第二底座上,第二底座上固定安装有预切机构,第一底座、第二底座均滑动安装于清洗机构上,第一输送通道、第二输送通道上均安装有集灰机构。本发明通过第一输送通道与第二输送通道内三个限位机构的设置,可以满足对不同直径的大口径厚壁管材的输送,输送履带转动即可对大口径厚壁管材进行输送,输送履带不转动与大口径厚壁管材外壁产生的摩擦力可以对大口径厚壁管材进行限位固定。(The invention discloses a pipeline conveying device for cutting large-caliber thick-wall pipes and a working method thereof. According to the invention, the three limiting mechanisms in the first conveying channel and the second conveying channel can meet the requirement of conveying large-caliber thick-wall pipes with different diameters, the conveying track can convey the large-caliber thick-wall pipes by rotating, and the conveying track can limit and fix the large-caliber thick-wall pipes by friction force generated by the outer wall of the large-caliber thick-wall pipes without rotating.)

1. The utility model provides a heavy-calibre thick-walled pipe slitting uses pipe conveying device, includes first transfer passage (100), second transfer passage (200), its characterized in that, three stop gear (300) are all installed to first transfer passage (100), second transfer passage (200) inner wall, first transfer passage (100) are rotated and are installed on revolving stage (500), revolving stage (500) are rotated and are installed on first base (501), second transfer passage (200) are rotated and are installed on second base (502), fixed mounting has precut mechanism (400) on second base (502), equal slidable mounting of first base (501), second base (502) is on wiper mechanism (600), all install collection grey mechanism (700) on first transfer passage (100), second transfer passage (200).

2. The large-caliber thick-wall pipe cutting pipeline conveying device according to claim 1, wherein the limiting mechanism (300) comprises a fixed strip (301), a moving block (302) is slidably mounted on the fixed strip (301), two rotating rod I (303) are rotatably mounted on the moving block (302), four rotating rod II (304) are rotatably mounted on the fixed strip (301), the two rotating rod I (303) and the four rotating rod II (304) are both rotatably connected with a limiting shell (305), and a conveying crawler belt is rotatably mounted on the limiting shell (305).

3. The large-caliber thick-wall pipe splitting pipeline conveying device according to claim 1, wherein the pre-cutting mechanism (400) comprises a guide shell (401), four telescopic cylinders (402) are arranged on the guide shell (401) in an equal radian, and a pre-cutting tool bit (403) is arranged at the end part of a piston rod of each telescopic cylinder (402).

4. The large-caliber thick-wall pipe conveying device for splitting according to claim 1, wherein the cleaning mechanism (600) comprises a cleaning chamber (601), a water tank (604) is installed in the cleaning chamber (601), a telescopic hose (605) is installed on the water tank (604), a shunt pipe (608) is installed at one end, away from the water tank (604), of the telescopic hose (605), outlets at two ends of the shunt pipe (608) are respectively communicated with water pumping ports of two water pumps (609), a water outlet tray (610) is installed at a water outlet of the water pumps (609), a jacking cylinder (607) is installed in the cleaning chamber (601), a piston rod of the jacking cylinder (607) is connected with a lifting plate (606), and a jacking port (611) is formed in the top of the cleaning chamber (601).

5. The large-caliber thick-wall pipe splitting pipe conveying device according to claim 1, wherein the ash collecting mechanism (700) comprises a fixed pipe sleeve (701), four pumps (703) are installed in the fixed pipe sleeve (701) at equal radian, and an ash collecting cover (702) is installed at a chip suction port of each pump (703).

6. A working method of a pipeline conveying device for slitting large-caliber thick-wall pipes is characterized by comprising the following steps:

the method comprises the following steps: conveying the large-caliber thick-wall pipe into a second conveying channel (200) through a guide shell (401), wherein three conveying tracks on three limiting shells (305) are in contact with the outer wall of the large-caliber thick-wall pipe, and the three conveying tracks convey the large-caliber thick-wall pipe;

step two: when the position to be cut on the large-caliber thick-wall pipe passes through the guide shell (401), the second conveying channel (200) drives the large-caliber thick-wall pipe to rotate, a precutting cutter head (403) opens precutting grooves on the outer surface of the large-caliber thick-wall pipe during rotation, the conveying crawler conveys the large-caliber thick-wall pipe to a position between the first conveying channel (100) and the second conveying channel (200), then the position on the large-caliber thick-wall pipe where the precutting grooves are opened is cut to obtain two large-caliber thick-wall pipes, and a pump (703) extracts waste chips generated in the cutting process through an ash collecting cover (702) in the cutting process;

step three: the first conveying channel (100) and the second conveying channel (200) move in the opposite direction, a piston rod of a jacking cylinder (607) pushes a lifting plate (606) to ascend, then two water outlet discs (610) ascend to a position between the first conveying channel (100) and the second conveying channel (200), then the first conveying channel (100) and the second conveying channel (200) move in the opposite direction, the two water outlet discs (610) respectively enter two large-caliber thick-wall pipe cutting positions, a water pump (609) pumps water through a telescopic hose (605) and a flow dividing pipe (608), and the water is sprayed to the inner wall of the large-caliber thick-wall pipe through a through hole in the water outlet discs (610), so that the large-caliber thick-wall pipe is cleaned.

Technical Field

The invention relates to the technical field of large-caliber thick-wall pipe processing, in particular to a pipeline conveying device for slitting a large-caliber thick-wall pipe and a working method thereof.

Background

Need cut the processing to heavy-calibre thick-walled pipe in heavy-calibre thick-walled pipe course of working, cut the processing and inconveniently go on heavy-calibre thick-walled pipe conveying equipment, because heavy-calibre thick-walled pipe removes on conveyor easily when cutting, the accuracy and the stability of heavy-calibre thick-walled pipe when cutting simultaneously are not high, and limit portion produces a large amount of burrs easily when cutting simultaneously, are difficult to the clearance.

Disclosure of Invention

The invention aims to provide a pipeline conveying device for slitting large-caliber thick-wall pipes and a working method thereof, and the pipeline conveying device can be used for solving the following technical problems: (1) the technical problems that the large-caliber thick-wall pipe is inconvenient to cut on a conveying device and the large-caliber thick-wall pipe is easy to move on the conveying device during cutting in the prior art are solved; (2) the technical problems that in the prior art, the accuracy and the stability of a large-caliber thick-wall pipe are not high during slitting, and a large amount of burrs are easily generated at the edge part during slitting and are difficult to clean are solved; (3) the technical problem that in the prior art, the scraps at the slitting position of a large-caliber thick-wall pipe are inconvenient to collect and clean after slitting is solved.

The purpose of the invention can be realized by the following technical scheme:

the utility model provides a heavy-calibre thick-walled pipe cuts uses pipe conveyor, includes first transfer passage, second transfer passage, three stop gear is all installed to first transfer passage, second transfer passage inner wall, first transfer passage rotates and installs on the revolving stage, the revolving stage rotates and installs on first base, second transfer passage rotates and installs on the second base, fixed mounting has precutting mechanism on the second base, the equal slidable mounting of first base, second base is on the wiper mechanism, all install album grey mechanism on first transfer passage, the second transfer passage.

Further, stop gear includes the fixed strip, slidable mounting has the movable block on the fixed strip, rotatable mounting has two dwang one on the movable block, rotatable mounting has four dwang two on the fixed strip, two dwang one all rotate with four dwang two and be connected spacing shell, rotatable mounting has the transport track on the spacing shell.

Furthermore, a limiting cylinder is fixedly mounted on the fixing strip, the end part of the piston rod of the limiting cylinder is fixedly connected with a moving block, a plurality of belt pulleys are rotatably mounted in the limiting shell, the belt pulleys are in transmission connection through a conveying track, a conveying motor is fixedly mounted on the limiting shell, and an output shaft of the conveying motor is connected with one of the belt pulleys.

Further, the precutting mechanism comprises a guide shell, four telescopic cylinders are installed on the guide shell at equal radian, and the precutting tool bit is installed at the end part of a piston rod of each telescopic cylinder.

Further, the equal fixed mounting of first transfer passage, second transfer passage outer wall has ring gear, solid fixed ring, equal fixed mounting has four wheel seats on revolving stage, the second base, wherein rotate on two wheel seats and install two leading wheels, rotate on two wheel seats in addition and install two gears, two leading wheels all set up in solid fixed ring below, the leading wheel contacts with solid fixed ring, and two gears all set up in the ring gear below, gear and ring gear intermeshing, fixed mounting has rotating electrical machines on revolving stage, the second base, one of them gear of rotating electrical machines output shaft.

Further, wiper mechanism includes the purge chamber, the purge chamber both sides outer wall symmetry is fixed with two driving motor, the purge chamber inner chamber rotates installs two ball, two driving motor and two ball one-to-ones, driving motor output shaft ball, two ball are threaded connection first base, second base respectively, install the water tank in the purge chamber, install the bellows on the water tank, the bellows is kept away from water tank one end and is installed the shunt tubes, shunt tubes both ends export communicates two water pump mouths of drawing water respectively, the water outlet disc is installed to the water pump delivery port, a plurality of through-holes have been seted up to the water outlet disc surface, install the jacking cylinder in the purge chamber, jacking cylinder piston rod connects the lifter plate, the jacking mouth has been seted up at the purge chamber top.

Furthermore, two ash collecting mechanisms are respectively fixed at the relative positions of the first conveying channel and the second conveying channel, each ash collecting mechanism comprises a fixed pipe sleeve, four pumps are installed in the fixed pipe sleeves at equal radian, an ash collecting cover is installed at a chip pumping port of each pump, a three-way pipe is installed at a chip removing port of each pump, two collecting boxes are arranged on two sides of each pump, and outlets at two ends of each three-way pipe are respectively communicated with the two collecting boxes.

Further, the working method of the pipeline conveying device for slitting the large-caliber thick-wall pipe comprises the following steps:

the method comprises the following steps: conveying the large-caliber thick-wall pipe into a second conveying channel through a guide shell, pushing a moving block by a limiting cylinder piston rod, driving two rotating rods to rotate by the moving block, matching the two rotating rods with the four rotating rods to drive the limiting shell to move in the second conveying channel, and further enabling three conveying tracks on the three limiting shells to be in contact with the outer wall of the large-caliber thick-wall pipe, driving belt pulleys to rotate by an output shaft of a conveying motor, driving the conveying tracks to rotate by a plurality of belt pulleys, and conveying the large-caliber thick-wall pipe by the three conveying tracks;

step two: when the position to be cut on the large-caliber thick-wall pipe passes through the guide shell, the corresponding rotating motor output shaft drives the gear to rotate, the gear is matched with the toothed ring to drive the second conveying channel to rotate, the second conveying channel drives the large-caliber thick-wall pipe to rotate, the telescopic cylinder piston rod in the guide shell pushes the pre-cutting tool bit, the pre-cutting tool bit is in contact with the outer surface of the large-caliber thick-wall pipe, the pre-cutting tool bit is used for forming a pre-cutting groove on the outer surface of the large-caliber thick-wall pipe when the large-caliber thick-wall pipe rotates, then the large-caliber thick-wall pipe is conveyed into the first conveying channel, three conveying tracks in the first conveying channel are in contact with the outer surface of the large-caliber thick-wall pipe, the conveying tracks convey the position on the large-caliber thick-wall pipe, where the pre-cutting groove is formed, to the position between the first conveying channel and the second conveying channel, and then the position on the large-caliber thick-wall pipe, where the pre-cutting groove is formed, is cut, obtaining two large-caliber thick-wall pipes, extracting scraps generated in the slitting process by a pump machine through an ash collecting cover in the slitting process, and then conveying the scraps into a collecting box by the pump machine through a three-way pipe;

step three: two driving motors drive two ball screws to rotate respectively, first base and second base reverse movement, and then first transfer passage and second transfer passage reverse movement, jacking cylinder piston rod promotes the lifter plate and rises, and then two play basins rise to between first transfer passage and the second transfer passage, then first transfer passage and second transfer passage move in opposite directions, two play basins get into respectively in two heavy-calibre thick-walled tubular product cut positions, the water pump draws water through bellows and shunt tubes, and spray to heavy-calibre thick-walled tubular product inner wall through the through-hole on a play basin, wash heavy-calibre thick-walled tubular product, it withdraws into the cleaning chamber to wash the back play basin.

The invention has the beneficial effects that:

(1) the invention relates to a pipeline conveying device for slitting large-caliber thick-wall pipes and a working method thereof, wherein the large-caliber thick-wall pipes are conveyed into a second conveying channel through a guide shell, a piston rod of a limiting cylinder pushes a moving block, the moving block drives two rotating rods to rotate, the two rotating rods are matched with the four rotating rods to drive the limiting shell to move in the second conveying channel, then three conveying tracks on the three limiting shells are in contact with the outer wall of the large-caliber thick-wall pipes, an output shaft of a conveying motor drives belt pulleys to rotate, the belt pulleys drive the conveying tracks to rotate, the three conveying tracks convey the large-caliber thick-wall pipes, the conveying tracks can convey the large-caliber thick-wall pipes with different diameters by arranging three limiting mechanisms in a first conveying channel and a second conveying channel, and the conveying tracks can convey the large-caliber thick-wall pipes by rotating, the friction force generated by the non-rotation of the conveying crawler and the outer wall of the large-caliber thick-wall pipe can limit and fix the large-caliber thick-wall pipe, so that the large-caliber thick-wall pipe is prevented from moving in the slitting process;

(2) when the position to be cut on the large-caliber thick-wall pipe passes through the guide shell, the corresponding rotating motor output shaft drives the gear to rotate, the gear is matched with the toothed ring to drive the second conveying channel to rotate, the second conveying channel drives the large-caliber thick-wall pipe to rotate, the telescopic cylinder piston rod in the guide shell pushes the pre-cutting tool bit, the pre-cutting tool bit is in contact with the outer surface of the large-caliber thick-wall pipe, the pre-cutting tool bit is used for forming a pre-cutting groove on the outer surface of the large-caliber thick-wall pipe when the large-caliber thick-wall pipe rotates, then the large-caliber thick-wall pipe is conveyed into the first conveying channel, three conveying tracks in the first conveying channel are in contact with the outer surface of the large-caliber thick-wall pipe, the conveying tracks convey the position on the large-caliber thick-wall pipe, where the pre-cutting groove is formed, to the position between the first conveying channel and the second conveying channel, and then the position on the large-caliber thick-wall pipe, where the pre-cutting groove is formed, is cut, the method comprises the steps that two large-caliber thick-wall pipes are obtained, a pump machine extracts scraps generated in the slitting process through an ash collecting cover in the slitting process, then the pump machine conveys the scraps into a collecting box through a three-way pipe, pre-cutting grooves can be formed in the surfaces of the large-caliber thick-wall pipes with different diameters by matching the design of four pre-cutting tool bits on a pre-cutting mechanism and the rotating design of a first conveying channel and a second conveying channel, so that the subsequent slitting treatment does not need to find the slitting position any more, the accuracy and the stability in slitting are improved, and burrs generated at the edge parts of the large-caliber thick-wall pipes in slitting are reduced;

(3) the two ball screws are driven to rotate by the two driving motors respectively, the first base and the second base move reversely, the first conveying channel and the second conveying channel move reversely, the lifting cylinder piston rod pushes the lifting plate to rise, the two water outlet discs rise to a position between the first conveying channel and the second conveying channel, then the first conveying channel and the second conveying channel move oppositely, the two water outlet discs enter two large-caliber thick-walled tube cutting positions respectively, the water pump pumps water through the telescopic hose and the flow dividing pipe and sprays the water to the inner wall of the large-caliber thick-walled tube through the through holes on the water outlet discs to clean the large-caliber thick-walled tube, the water outlet discs after cleaning are retracted into a cleaning chamber, the rotation of the first conveying channel can be met through the design of the rotary table on the first base, the cut large-caliber thick-walled tube can be conveyed out towards different directions according to requirements, but through the setting of first base and second base of adjusting position, can adjust two heavy-calibre thick-walled tubular product intervals that obtain after cutting heavy-calibre thick-walled tubular product, make things convenient for the drain pan to get into the heavy-calibre thick-walled tubular product that corresponds and cut the position inner wall and wash, through the design of collection grey mechanism on first transfer passage and the second transfer passage, can in time collect the sweeps that the cutting position produced after cutting heavy-calibre thick-walled tubular product, a plurality of collection grey covers of annular design are sheathe in to the fixed pipe simultaneously, can collect the sweeps of each position in heavy-calibre thick-walled tubular product surface, the collection efficiency is high.

Drawings

The invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic structural diagram of a large-caliber thick-wall pipe cutting pipe conveying device according to the present invention;

FIG. 2 is a schematic view of the first transfer passage of the present invention;

FIG. 3 is a view showing the internal structure of the cleaning chamber of the present invention;

FIG. 4 is an internal structure view of the outlet tray of the present invention;

FIG. 5 is an internal structural view of the guide housing of the present invention;

FIG. 6 is an internal structural view of the fixing socket of the present invention;

FIG. 7 is an internal structural view of a first conveyance path of the present invention;

fig. 8 is a schematic structural view of the limiting mechanism of the present invention.

In the figure: 100. a first conveyance path; 200. a second conveyance path; 300. a limiting mechanism; 301. a fixing strip; 302. a moving block; 303. rotating the first rod; 304. rotating the second rod; 305. a limiting shell; 306. a limiting cylinder; 307. a conveying motor; 400. a pre-cutting mechanism; 401. a guide housing; 402. a telescopic cylinder; 403. a cutter head is precut; 500. a rotating table; 501. a first base; 502. a second base; 504. a rotating electric machine; 505. a toothed ring; 506. a fixing ring; 507. a guide wheel; 600. a cleaning mechanism; 601. a cleaning chamber; 602. a drive motor; 603. a ball screw; 604. a water tank; 605. a flexible hose; 606. a lifting plate; 607. jacking a cylinder; 608. a shunt tube; 609. a water pump; 610. a water outlet tray; 611. jacking ports; 700. a dust collecting mechanism; 701. fixing the pipe sleeve; 702. a dust collecting cover; 703. a pump machine; 704. a three-way pipe; 705. and (4) collecting the box.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-8, the present invention is a large-caliber thick-wall pipe cutting pipe conveying device, including a first conveying channel 100 and a second conveying channel 200, wherein three limiting mechanisms 300 are respectively installed on inner walls of the first conveying channel 100 and the second conveying channel 200, the first conveying channel 100 is rotatably installed on a rotary table 500, the rotary table 500 is rotatably installed on a first base 501, the second conveying channel 200 is rotatably installed on a second base 502, a pre-cutting mechanism 400 is fixedly installed on the second base 502, the first base 501 and the second base 502 are both slidably installed on a cleaning mechanism 600, an ash collecting mechanism 700 is installed on each of the first conveying channel 100 and the second conveying channel 200, and through the design of rotating the rotary table 500 on the first base 501, the rotation of the first conveying channel 100 can be met, and the cut large-caliber thick-wall pipe can be conveyed out towards different directions according to requirements.

Specifically, stop gear 300 includes fixed strip 301, slidable mounting has movable block 302 on fixed strip 301, rotatable mounting has two dwang one 303 on the movable block 302, rotatable mounting has two 304 of four dwang on the fixed strip 301, two dwang one 303 all rotate with two 304 of four dwang and are connected spacing shell 305, rotatable mounting has the conveying track on the spacing shell 305, fixed mounting has spacing cylinder 306 on the fixed strip 301, spacing cylinder 306 piston rod tip fixed connection movable block 302, a plurality of belt pulleys are installed to spacing shell 305 internal rotation, connect through the conveying track transmission between a plurality of belt pulleys, fixed mounting has conveying motor 307 on the spacing shell 305, conveying motor 307 output shaft connects one of them belt pulley. Through the setting of three stop gear 300 in first transfer passage 100 and the second transfer passage 200, can satisfy the transport to the heavy-calibre thick-walled pipe material of different diameters, the transportation track rotates and can carry heavy-calibre thick-walled pipe material, and the transportation track does not rotate and can carry out spacing fixed to heavy-calibre thick-walled pipe material with the frictional force that heavy-calibre thick-walled pipe material outer wall produced, prevents that the heavy-calibre thick-walled pipe material from cutting the condition that the in-process appearance removed.

The pre-cutting mechanism 400 comprises a guide shell 401, four telescopic cylinders 402 are arranged on the guide shell 401 in an equiangular manner, pre-cutting tool bits 403 are arranged at the end parts of piston rods of the telescopic cylinders 402, toothed rings 505 and fixing rings 506 are fixedly arranged on the outer walls of a first conveying channel 100 and a second conveying channel 200, four wheel seats are fixedly arranged on a rotating platform 500 and a second base 502, two guide wheels 507 are rotatably arranged on the two wheel seats, two gears are rotatably arranged on the other two wheel seats, the two guide wheels 507 are respectively arranged below the fixing rings 506, the guide wheels 507 are in contact with the fixing rings 506, the two gears are respectively arranged below the toothed rings 505, the gears are mutually meshed with the toothed rings 505, a rotating motor 504 is fixedly arranged on the rotating platform 500 and the second base 502, an output shaft of the rotating motor 504 is connected with one of the gears, and the design that the four pre-cutting tool bits 403 on the pre-cutting mechanism 400 are matched with the rotating design that the first conveying channel 100 and the second conveying channel 200 rotate, the precutting grooves can be formed in the surfaces of the large-caliber thick-wall pipes with different diameters, so that the subsequent cutting treatment does not need to find the cutting position any more, and meanwhile, the accuracy and the stability during cutting are improved.

The cleaning mechanism 600 comprises a cleaning chamber 601, two driving motors 602 are symmetrically fixed on the outer walls of two sides of the cleaning chamber 601, two ball screws 603 are rotatably installed in the inner cavity of the cleaning chamber 601, the two driving motors 602 correspond to the two ball screws 603 one by one, the output shaft of the driving motor 602 is connected with the ball screws 603, the two ball screws 603 are respectively in threaded connection with a first base 501 and a second base 502, a water tank 604 is installed in the cleaning chamber 601, a flexible hose 605 is installed on the water tank 604, a dividing pipe 608 is installed at one end of the flexible hose 605 far away from the water tank 604, outlets at two ends of the dividing pipe 608 are respectively communicated with two water pumping ports of a water pump 609, a water outlet disk 610 is installed at the water outlet of the water pump 609, a plurality of through holes are formed in the outer surface of the water outlet disk 610, a jacking cylinder 607 is installed in the cleaning chamber 601, the piston rod of the jacking cylinder 607 is connected with a lifting plate 606, a jacking port 611 is formed in the top of the cleaning chamber 601, and the arrangement of the first base 501 and the second base 502 with adjustable positions, after the large-caliber thick-wall pipe is cut, the distance between the two large-caliber thick-wall pipes obtained after cutting can be adjusted, and the water outlet disc 610 can conveniently enter the inner wall of the cutting position of the corresponding large-caliber thick-wall pipe to be cleaned.

The two ash collecting mechanisms 700 are respectively fixed at the relative positions of the first conveying channel 100 and the second conveying channel 200, each ash collecting mechanism 700 comprises a fixed pipe sleeve 701, four pumps 703 are arranged in the fixed pipe sleeves 701 at equal radian, an ash collecting cover 702 is arranged at a chip suction port of each pump 703, a three-way pipe 704 is arranged at a chip discharge port of each pump 703, two collecting boxes 705 are arranged at two sides of each pump 703, outlets at two ends of the three-way pipe 704 are respectively communicated with the two collecting boxes 705, through the design of the ash collecting mechanisms 700 on the first conveying channel 100 and the second conveying channel 200, waste scraps generated at the cutting position can be timely collected after the large-caliber thick-wall pipes are cut, and meanwhile, the plurality of ash collecting covers 702 which are annularly designed on the fixed pipe sleeves 701 can collect waste scraps at all positions on the surfaces of the large-caliber thick-wall pipes, and the collection efficiency is high.

Referring to fig. 1 to 8, the working process of the pipe conveying device for slitting large-caliber thick-wall pipes according to the present embodiment is as follows:

the method comprises the following steps: conveying the large-caliber thick-wall pipe into a second conveying channel 200 through a guide shell 401, pushing a moving block 302 by a piston rod of a limiting cylinder 306, driving two rotating rods 303 to rotate by the moving block 302, matching the two rotating rods 303 with four rotating rods 304 to drive a limiting shell 305 to move in the second conveying channel 200, further enabling three conveying tracks on the three limiting shells 305 to be in contact with the outer wall of the large-caliber thick-wall pipe, driving belt pulleys to rotate by an output shaft of a conveying motor 307, driving the conveying tracks to rotate by a plurality of belt pulleys, and conveying the large-caliber thick-wall pipe by the three conveying tracks;

step two: when the position to be cut on the large-caliber thick-wall pipe passes through the guide shell 401, the output shaft of the corresponding rotating motor 504 drives the gear to rotate, the gear is matched with the toothed ring 505 to drive the second conveying channel 200 to rotate, the second conveying channel 200 drives the large-caliber thick-wall pipe to rotate, the piston rod of the telescopic cylinder 402 in the guide shell 401 pushes the pre-cutting head 403, the pre-cutting head 403 is in contact with the outer surface of the large-caliber thick-wall pipe, the pre-cutting head 403 cuts a pre-cutting groove on the outer surface of the large-caliber thick-wall pipe when the large-caliber thick-wall pipe rotates, then the large-caliber thick-wall pipe is conveyed into the first conveying channel 100, three conveying tracks in the first conveying channel 100 are in contact with the outer surface of the large-caliber thick-wall pipe, the conveying tracks convey the position on the large-caliber thick-wall pipe where the pre-cutting groove is formed between the first conveying channel 100 and the second conveying channel 200, then the position on the large-caliber thick-wall pipe where the pre-cutting groove is formed is cut, obtaining two large-caliber thick-wall pipes, pumping the scraps generated in the slitting process by a pump 703 through an ash collecting cover 702 in the slitting process, and then conveying the scraps into a collecting box 705 by the pump 703 through a three-way pipe 704;

step three: the two driving motors 602 respectively drive the two ball screws 603 to rotate, the first base 501 and the second base 502 move in reverse directions, the first conveying channel 100 and the second conveying channel 200 move in reverse directions, the piston rod of the jacking cylinder 607 pushes the lifting plate 606 to ascend, the two water outlet discs 610 ascend to positions between the first conveying channel 100 and the second conveying channel 200, then the first conveying channel 100 and the second conveying channel 200 move in opposite directions, the two water outlet discs 610 respectively enter two large-caliber thick-wall pipe splitting positions, the water pump 609 pumps water through the telescopic hose 605 and the flow dividing pipe 608 and sprays the water to the inner wall of the large-caliber thick-wall pipe through the through holes in the water outlet discs 610 to clean the large-caliber thick-wall pipe, and the water outlet discs 610 are retracted into the cleaning chamber 601 after cleaning.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.