CN116214176A - High-temperature steel pipe welding equipment and welding method for preventing delayed cracking - Google Patents
High-temperature steel pipe welding equipment and welding method for preventing delayed cracking Download PDFInfo
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- CN116214176A CN116214176A CN202310511387.6A CN202310511387A CN116214176A CN 116214176 A CN116214176 A CN 116214176A CN 202310511387 A CN202310511387 A CN 202310511387A CN 116214176 A CN116214176 A CN 116214176A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 189
- 239000010959 steel Substances 0.000 title claims abstract description 189
- 238000003466 welding Methods 0.000 title claims abstract description 62
- 230000003111 delayed effect Effects 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000005336 cracking Methods 0.000 title claims description 16
- 239000007779 soft material Substances 0.000 claims abstract description 68
- 238000004321 preservation Methods 0.000 claims abstract description 58
- 238000004804 winding Methods 0.000 claims abstract description 37
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- 230000008093 supporting effect Effects 0.000 claims description 39
- 230000001012 protector Effects 0.000 claims description 25
- 230000005540 biological transmission Effects 0.000 claims description 13
- 238000005498 polishing Methods 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 6
- 230000004224 protection Effects 0.000 claims description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 201000009240 nasopharyngitis Diseases 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
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Abstract
The invention relates to the technical field of steel pipe welding, and provides high-temperature steel pipe welding equipment and a welding method for preventing delayed cracks, wherein the high-temperature steel pipe welding equipment for preventing delayed cracks comprises a receiving device, a connecting device and a welding device, wherein the receiving device is arranged at the tail end of a feeding device in the feeding direction; the welding machine is arranged at one side of the bearing device; the grinding machine is arranged on one side of the bearing device, and the grinding machine and the welding machine are positioned on the opposite side; the heat preservation subassembly sets up in carrying device one side, and the heat preservation subassembly is located homonymy with the polisher, and the heat preservation subassembly includes: the lifting table is arranged at one side of the bearing device; the winding roller is rotatably arranged on the lifting table; the first heat preservation Wen Ruancai is wound on the winding roller, the first heat preservation soft material is provided with a heating wire, the heating wire is used for heating the steel pipe, the magnetic piece is arranged on the first heat preservation soft material, and the magnetic piece is used for being adsorbed with the steel pipe. Through the technical scheme, the problem of high probability of occurrence of cold cracks in the welding process of the high-temperature steel pipe in the prior art is solved.
Description
Technical Field
The invention relates to the technical field of steel pipe welding, in particular to high-temperature steel pipe welding equipment and a welding method for preventing delayed cracking.
Background
Cold cracks refer to weld cracks that occur when the welded joint cools to a lower temperature. The most predominant, most common cold crack is a delayed crack (i.e., a crack that occurs only after a period of time after welding because hydrogen is the most active inducing factor and it takes some time for hydrogen to propagate, aggregate, and induce the crack in the metal), with the delay time of the cold crack varying from a few seconds to a few years.
In the prior art, the steel pipe is generally preheated, welded and then subjected to heat preservation and other processes, but welding equipment does not have the functions of heating, warming and the like, and the probability of cold crack generation is increased because the temperature is reduced due to no heat preservation measure in the steel pipe conveying process. In addition, the heating and heat-preserving device and the welding device in the prior art are positioned at different positions, the occupied space is relatively large, and the welding efficiency cannot be improved.
Disclosure of Invention
The invention provides high-temperature steel pipe welding equipment and a welding method for preventing delayed cracks, which solve the problem of high probability of cold crack generation in the high-temperature steel pipe welding process in the related technology.
The technical scheme of the invention is as follows:
a high temperature steel pipe welding apparatus for preventing delayed cracking, comprising:
a feeding device;
the bearing device is arranged at the tail end of the feeding direction of the feeding device and is used for bearing the high-temperature steel pipe;
the welding machine is arranged at one side of the bearing device and is used for welding the high-temperature steel pipe;
the polisher is arranged on one side of the bearing device, and the polisher and the welding machine are positioned on the opposite side;
the heat preservation subassembly sets up adapting unit one side, the heat preservation subassembly with the polisher is located the homonymy, the heat preservation subassembly includes:
the lifting table is arranged at one side of the bearing device;
the winding roller is rotatably arranged on the lifting platform, the lifting platform is used for driving the winding roller to lift, and the rotation direction of the winding roller is parallel to the axis of the steel pipe;
the first heat preservation Wen Ruancai is wound on the winding roller, and the first heat preservation soft material is provided with a heating wire which is used for heating the steel pipe;
the magnetic pieces are arranged on the first heat-preserving soft material at intervals along the long sides of the first heat-preserving Wen Ruancai and are used for being adsorbed with the steel pipe.
As a further technical solution, the receiving device includes:
the rack is arranged at the tail end of the feeding direction of the feeding device;
the bearing table is arranged on the rack and is arc-shaped, and a plurality of through holes are formed in the bottom of the bearing table;
the riding wheel device is arranged on the frame and penetrates through the through hole, and the riding wheel device is used for driving the steel pipe to rotate.
As a further technical solution, the receiving device further includes:
the first driving piece is arranged on the frame;
the support piece is arranged on the rack and is positioned above the bearing table;
the driving rod is arranged at the output end of the first driving piece and is rotatably arranged in the supporting piece;
the supporting component is arranged on the supporting component, the driving rod is connected with the supporting component, and the driving rod is used for driving the supporting component to support;
the second heat-preserving soft material is arranged on the opening assembly and used for being opened, and the second heat-preserving soft material is abutted with the inner wall of the steel pipe after being opened.
As a further technical solution, the expanding assembly includes:
the movable seat is arranged on the supporting piece in a sliding manner and is in threaded connection with the driving rod;
the first guide blocks are provided with a plurality of guide blocks and are rotatably arranged on the supporting piece;
the second guide blocks are provided with a plurality of guide blocks, are rotatably arranged on the movable seat, and are different in height;
the connecting rod, have a plurality of, a plurality of the connecting rod is around support piece circumference distributes, a connecting rod passes one in proper order first guide block and one the second guide block, and a first guide block and one the second guide block only allows one the connecting rod to pass, the second heat preservation soft material has two, and a plurality of connecting rod homonymy one end is connected on same second heat preservation soft material.
As a further technical solution, the expanding assembly further comprises:
the second heat-preservation soft material is arranged on the reset arc-shaped piece, and the reset arc-shaped piece is a deformable reset arc-shaped piece.
As a further technical scheme, the riding wheel device includes a plurality of riding wheel groups, transfer line and second driving piece, and is a plurality of riding wheel group interval sets up in the frame, the riding wheel group passes the through-hole, the transfer line is used for connecting a plurality of riding wheel group, the second driving piece sets up in the frame, the second driving piece is used for the drive the transfer line rotates, the riding wheel group includes:
the base is arranged on the frame;
the driven wheel is rotatably arranged on the base;
the driving wheel is rotationally arranged on the base and used for driving the driven wheel to rotate, the driven wheel is used for driving the steel pipe to rotate, the transmission rod is connected with the driving wheel, and the transmission rod is used for driving the driving wheel to rotate.
As a further technical scheme, the method further comprises:
the telescopic piece is arranged on the rack and stretches vertically;
the lifting plate is arranged on the telescopic end of the telescopic piece, and the base is arranged on the lifting plate.
As a further technical scheme, the base is rotatably arranged on the lifting plate, and the base rotates around the rotation center of the driving wheel.
As a further technical scheme, loading attachment includes:
a support frame;
the first conveying piece is arranged on the supporting frame;
the second conveying piece is arranged on the supporting frame in a vertical sliding mode and is positioned above the first conveying piece, a conveying space is formed between the first conveying piece and the second conveying piece, a plurality of circular arc-shaped pieces are arranged on the first conveying piece and the second conveying piece at intervals, the circular arc-shaped pieces rotate in a circulating mode along with the first conveying piece or the second conveying piece, and when the circular arc-shaped pieces are positioned in the conveying space, openings of the upper circular arc-shaped pieces and the lower circular arc-shaped pieces are close to each other;
the lifting driving piece is arranged on the supporting frame and used for driving the second conveying piece to lift up and down.
A high-temperature steel pipe welding method for preventing delayed cracking comprises the following steps:
s1, feeding: the feeding device firstly feeds a first steel pipe to the bearing table, then feeds a second steel pipe, a gap is reserved between the second steel pipe and the first steel pipe, and the lifting driving piece drives the second conveying piece to lift after feeding is completed;
s2, polishing: the second driving piece drives the driven wheel to rotate through the driving wheel, the two steel pipes rotate, and the polisher polishes and removes rust and polish grooves on the steel pipes;
s3, heat preservation and heating: after polishing, the lifting table descends, the magnetic piece is adsorbed on the outer wall of the steel pipe, then the riding wheel group drives the steel pipe to rotate, the winding roller releases the first protector Wen Ruancai, the first protector Wen Ruancai can rotate along with the steel pipe, and the first protector Wen Ruancai is wound on the steel pipe; then the first driving piece drives the movable seat to move towards the direction close to the first driving piece, at the moment, the two ends of the connecting rod are respectively far away from the supporting piece under the action of the first guide block and the second guide block, so that the second heat-preserving soft material is spread, the second heat-preserving soft material is abutted with the steel pipe, the first protection Wen Ruancai, the steel pipe and the second heat-preserving soft material form a heat-preserving layer, and the heating wire starts to heat and preserve heat;
s4, welding: after the heat preservation is carried out for a certain time, the first driving piece drives the movable seat to be far away from the first driving piece, the second heat preservation soft material is extruded, the second heat preservation soft material leaves the steel pipe, then the winding roller and the riding wheel set rotate simultaneously, the first roller protector Wen Ruancai is wound on the winding roller, the welding machine starts to weld, and the riding wheel set drives the steel pipe to rotate;
s5, heat preservation: repeating the step S3, and preserving heat for a period of time;
s6, blanking: the first driving piece drives the movable seat to be far away from the first driving piece, the second heat-preserving soft material is extruded and leaves the steel pipe, then the winding roller and the riding wheel set rotate simultaneously to wind the first protector Wen Ruancai onto the winding roller, the lifting driving piece drives the second conveying piece to descend, and then the steel pipe is conveyed away through the first conveying piece and the second conveying piece.
The working principle and the beneficial effects of the invention are as follows:
1. according to the invention, the steel pipe is fed onto the bearing table through the feeding device, and the first heat preservation Wen Ruancai and the second heat preservation soft material are used for heat preservation and heating, so that the steel pipe can be subjected to heat preservation and heating at the first time after polishing and welding, the heat loss is reduced, especially the steel pipe is subjected to rapid heat preservation after welding, the hydrogen content is reduced, and the occurrence probability of delayed cracks is reduced;
2. according to the invention, the connecting rod is guided by the first guide block and the second guide block, so that the two second heat-insulation soft materials can be simultaneously expanded and contracted, and the steel pipe is heat-insulated; the steel pipe can be limited through the connecting rod, so that the steel pipe is prevented from moving and rotating;
3. according to the invention, under the action of the first guide block and the second guide block, the opening assembly can be contracted to a small diameter, and the opening assembly is suitable for steel pipes with wide diameters;
4. according to the invention, the riding wheel device drives the steel pipe to rotate, and the riding wheel device can adapt to the steel pipes with different diameters, so that the practicability of the device is improved.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a schematic view of a thermal insulation assembly according to the present invention;
FIG. 4 is a schematic view of a receiving device according to the present invention;
FIG. 5 is an enlarged view of FIG. 4 at A;
FIG. 6 is a schematic view of the structure of the receiving table and the spreader assembly of the present invention;
FIG. 7 is an enlarged view of FIG. 6 at B;
FIG. 8 is a schematic diagram of the riding wheel device of the present invention;
FIG. 9 is an enlarged view of FIG. 8 at C;
in the figure: 1. the feeding device comprises 2 parts of a feeding device, 2 parts of a bearing device, 3 parts of a welding machine, 4 parts of a grinding machine, 5 parts of a heat-insulating assembly, 6 parts of a lifting table, 7 parts of a winding roller, 8 parts of a first protection Wen Ruancai, 9 parts of a magnetic part, 201 parts of a frame, 202 parts of a bearing table, 203 parts of a through hole, 204 parts of a riding wheel device, 205 parts of a first driving part, 206 parts of a bearing part, 207 parts of a second heat-insulating soft material, 208 parts of a bearing plate, 209 parts of a supporting part, driving rods, 210 parts of a third driving part, 211 parts of a moving plate, 212 parts of a screw, 2081 parts of a moving seat, 2082 parts of a first guiding block, 2083 parts of a second guiding block, 2084 parts of a connecting rod, 2085 parts of a reset arc-shaped part, 2041 parts of a riding wheel group, 2042 parts of a transmission rod, 2043 parts of a second driving part, 10 parts of a base, 11 parts of a driven wheel, 12 parts of a driving wheel, 13 parts of a telescopic part, 14 parts of a lifting plate, 101 parts of a supporting frame, 102 parts of a first conveying part, 103 parts of a second conveying part of a conveying part, 104, conveying space, 105 parts of a circular arc-shaped parts of a lifting driving part, 106 and lifting driving parts of the lifting driving part.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by one of ordinary skill 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.
As shown in fig. 1 to 9, this embodiment proposes a high-temperature steel pipe welding apparatus for preventing delayed cracking, including:
a feeding device 1;
the bearing device 2 is arranged at the tail end of the feeding direction of the feeding device 1, and the bearing device 2 is used for bearing the high-temperature steel pipe;
the welding machine 3 is arranged on one side of the bearing device 2, and the welding machine 3 is used for welding the high-temperature steel pipe;
the polisher 4 is arranged on one side of the bearing device 2, and the polisher 4 and the welding machine 3 are positioned on the opposite side;
the heat preservation subassembly 5 sets up in carrying device 2 one side, and heat preservation subassembly 5 is located the homonymy with polisher 4, and heat preservation subassembly 5 includes:
a lifting table 6 arranged on one side of the carrying device 2;
the winding roller 7 is rotatably arranged on the lifting table 6, the lifting table 6 is used for driving the winding roller 7 to lift, and the rotation direction of the winding roller 7 is parallel to the axis of the steel pipe;
the first heat preservation Wen Ruancai is wound on the winding roller 7, and the first heat preservation soft material 8 is provided with a heating wire which is used for heating the steel pipe;
the magnetic pieces 9 are arranged on the first heat-preserving soft material 8 at intervals along the long sides of the first heat-preserving Wen Ruancai, and the magnetic pieces 9 are used for being adsorbed with the steel pipes.
In this embodiment, the feeding device 1 loads two steel pipes onto the receiving device 2, the two steel pipes are spaced from each other just before being polished by the polisher 4, rust and other impurities on the steel pipes are polished by the polisher 4, then the winding roller 7 releases the first protector Wen Ruancai, the first protector Wen Ruancai is adsorbed onto the steel pipes by the magnetic piece 9, then the steel pipes and the winding roller 7 rotate simultaneously, the first protector Wen Ruancai 8 is wound onto the steel pipes, and heat required by heating the steel pipes by the heating wires can be reduced because heat is generated during polishing by the polisher 4, and the steel pipes are heated in a heat-preserving manner by the heating wires, so that the preheating of the steel pipes is realized, and the hydrogen content is reduced; after a period of heat preservation and heating, the winding roller 7 and the steel pipe rotate, the rotation direction is opposite to the rotation direction, so that the first protector Wen Ruancai is driven to wind on the winding roller 7, then the two steel pipes are pushed to be butted together through the feeding device 1, the welding machine 3 welds, after the welding is completed, the first protector Wen Ruancai is wound on the steel pipe, the energy required by heating the heating wire is reduced because the welding heat is particularly high, the heat preservation is carried out through the first protector Wen Ruancai 8, the welding position of the steel pipe is a reasonable temperature, the hydrogen content is reduced, and therefore the occurrence of cold cracks is reduced. The winding position of the first protector Wen Ruancai is the welding position of the steel pipe, so that the steel pipe is in a high-temperature state, and the probability of delayed crack generation is reduced. The heat loss in the steel pipe welding process is avoided, and the probability of delayed crack generation is also reduced. Both the sander 4 and the welder 3 are known in the art.
Further, the receiving device 2 includes:
the rack 201 is arranged at the tail end of the feeding direction of the feeding device 1;
the bearing table 202 is arranged on the stand 201, the bearing table 202 is arc-shaped, and a plurality of through holes 203 are formed in the bottom of the bearing table 202;
the riding wheel device 204 is arranged on the frame 201, the riding wheel device 204 penetrates through the through hole 203, and the riding wheel device 204 is used for driving the steel pipe to rotate.
In this embodiment, the structure of the bearing device 2 is described, the bearing table 202 bears the steel pipe, and the riding wheel device 204 drives the steel pipe to rotate, so that the problem of rotation of the steel pipe is solved.
Further, the receiving device 2 further includes:
a first driving member 205 provided on the frame 201;
a support 206 disposed on the frame 201, the support 206 being located above the receiving table 202;
the driving rod 209 is arranged at the output end of the first driving piece 205, and the driving rod 209 is rotatably arranged in the supporting piece 206;
the expanding component 208 is arranged on the supporting piece 206, the driving rod 209 is connected with the expanding component 208, and the driving rod 209 is used for driving the expanding component 208 to expand;
the second heat-preserving soft material 207 is arranged on the opening assembly 208, and the opening assembly 208 is used for opening the second heat-preserving soft material 207, and the second heat-preserving soft material 207 is propped against the inner wall of the steel pipe after being opened.
In this embodiment, the structure of the receiving device 2 is further described, specifically: the second heat-insulating soft material 207 is abutted with the inner wall of the steel pipe, so that a heat-insulating space is formed by the first heat-insulating soft material Wen Ruancai, the steel pipe and the second heat-insulating soft material 207, and heat loss is reduced. After the steel pipe gets into the supporting bench, strut the subassembly 208 and be located the steel pipe, strut the subassembly 208 both ends and be located two steel pipes respectively, first driving piece 205 drive actuating lever 209 action, actuating lever 209 drives and struts the subassembly 208 and strut, strut the subassembly 208 and drive the second and keep warm soft material 207 and butt two steel pipes respectively, after first Wen Ruancai parcel steel pipe, will form a heat preservation space, two steel pipes need welded one end all be located the heat preservation space to the loss of heat has been reduced, the consumption of the energy has been reduced. Preferably, the magnetic piece 9 is also arranged on the expanding assembly 208, and the magnetic piece 9 on the expanding assembly 208 and the magnetic piece 9 on the first heat-preserving soft material 8 are attracted mutually, so that the first heat-preserving Wen Ruancai 8 is wound on the outer wall of the steel pipe, and the situation that part of the magnetic piece 9 cannot be adsorbed on part of the steel pipe is avoided.
Further, the distractor assembly 208 includes:
the movable seat 2081 is arranged on the supporting piece 206 in a sliding manner, and the movable seat 2081 is in threaded connection with the driving rod 209;
the first guiding blocks 2082 are provided with a plurality of guiding blocks and are rotatably arranged on the supporting piece 206;
the second guide blocks 2083 are provided with a plurality of guide blocks, are rotatably arranged on the movable seat 2081, and the first guide blocks 2082 and the second guide blocks 2083 are different in height;
the connecting rods 2084 are provided with a plurality of connecting rods 2084, the plurality of connecting rods 2084 are circumferentially distributed around the supporting piece 206, one connecting rod 2084 penetrates through one first guiding block 2082 and one second guiding block 2083, one first guiding block 2082 and one second guiding block 2083 only allow one connecting rod 2084 to penetrate through, the second heat-preserving soft material 207 is provided with two connecting rods, and one end of the same side of each connecting rod 2084 is connected to the same second heat-preserving soft material 207.
In this embodiment, the structure of the opening assembly 208 is described in detail, specifically: the first driving piece 205 drives the driving rod 209 to rotate, the driving rod 209 drives the movable seat 2081 to move through threads, and when the movable seat 2081 moves, the distance between the first guide block 2082 and the second guide block 2083 in the longitudinal direction is unchanged, but the transverse distance is reduced, and the first guide block 2082 and the second guide block 2083 can rotate, so that the connecting rod 2084 can swing, that is, the distance between the two ends of the connecting rod 2084 and the axis of the steel pipe can be gradually increased, and one end of the second heat-insulation soft material 207 can be driven to be gradually close to the inner wall of the steel pipe; because there are a plurality of connecting rods 2084, and around support piece 206 circumference distribution, so paste second heat preservation soft material 207 on the steel pipe inner wall, preferred second heat preservation soft material 207 is circular, just second heat preservation soft material 207 forms a division spare, cut apart steel pipe inside, the inside of two steel pipes is cut apart into three parts to the second heat preservation soft material 207 of connecting rod 2084 both ends, the one end that the steel pipe needs welded all is located between two second heat preservation soft materials 207 to form the heat preservation space with first heat preservation soft material 8, reduced the loss of heat. In addition, because some steel pipes that need to be welded are very long, so support piece 206 and actuating lever 209 are all very long, can form downwarping in the one end that keeps away from first actuating piece 205, and connecting rod 2084 circumference sets up, and connecting rod 2084 one end below can make the second heat preservation soft material 207 butt steel pipe inner wall earlier to promote bracing piece and actuating lever 209 and rise, thereby resume the level, form the corrective action. After the second heat-insulating soft material 207 abuts against the inner wall of the steel tube, supporting and limiting effects are also formed, so that the two steel tubes are prevented from rotating or relatively displacing. The purpose of adopting the first guide block 2082 and the second guide block 2083 is to realize that the opening assembly 208 can be reduced to the minimum diameter under the condition of not using the second heat-insulation soft material 207 under the premise of automatically opening the second heat-insulation soft material 207, so that the steel pipe with a wide range of diameters can be adapted.
Further, the distractor assembly 208 may also include:
the arc-shaped reset piece 2085 is provided with a plurality of arc-shaped reset pieces, the arc-shaped reset pieces are arranged at two ends of the connecting rods 2084, the second heat-insulation soft material 207 is arranged on the arc-shaped reset piece 2085, and the arc-shaped reset piece 2085 is a deformable reset arc-shaped piece.
In this embodiment, in order to adapt to the steel pipe of different diameters, set up on connecting rod 2084 and reset arc piece 2085, reset arc piece 2085 diameter is the maximum diameter that the connection can support, when the steel pipe of small diameter needs adaptation, after reset arc piece 2085 drove second heat preservation soft material 207 butt steel pipe inner wall, connecting rod 2084 can continue to give the open power of reset arc piece 2085 to make reset arc piece 2085 warp, thereby adapt to the steel pipe of current diameter. Preferably, all the connecting rods are projected onto the driving rod 209 at different positions, so that interference can be avoided when the plurality of reset arc-shaped pieces 2085 adapt to small-diameter steel pipes.
Further, the riding wheel device 204 includes a plurality of riding wheel sets 2041, a transmission rod 2042 and a second driving member 2043, the plurality of riding wheel sets 2041 are disposed on the frame 201 at intervals, the riding wheel sets 2041 pass through the through holes 203, the transmission rod 2042 is used for connecting the plurality of riding wheel sets 2041, the second driving member 2043 is disposed on the frame 201, the second driving member 2043 is used for driving the transmission rod 2042 to rotate, and the riding wheel sets 2041 include:
a base 10 provided on the frame 201;
a driven wheel 11 rotatably provided on the base 10;
the driving wheel 12 is rotatably arranged on the base 10, the driving wheel 12 is used for driving the driven wheel 11 to rotate, the driven wheel 11 is used for driving the steel pipe to rotate, the transmission rod 2042 is connected with the driving wheel 12, and the transmission rod 2042 is used for driving the driving wheel 12 to rotate.
In this embodiment, the structure of the riding wheel device 204 is described in detail, specifically: after entering the bearing table 202, the steel pipe abuts against the driven wheel 11, and the second driving piece 2043 drives the driving wheel 12 to rotate, so that the driven wheel 11 is driven to rotate, and the steel pipe is driven to rotate when the driven wheel 11 is driven to rotate.
Further, the method further comprises the following steps:
a telescopic member 13 provided on the frame 201, the telescopic member 13 being vertically telescopic;
the lifting plate 14 is arranged on the telescopic end of the telescopic piece 13, and the base 10 is arranged on the lifting plate 14.
In this embodiment, in order to prevent the driven wheel 11 from interfering with the conveying of the steel pipe, the supporting wheel set 2041 is driven to lift by the telescopic member 13, when the steel pipe is conveyed, the supporting wheel set 2041 is located below the supporting table, the driven wheel 11 is not abutted with the steel pipe, after the steel pipe is fed, the telescopic member 13 lifts, the driven wheel 11 is abutted with the steel pipe and stops, and when the steel pipe is required to rotate, the second driving member 2043 drives the driving wheel 12 to rotate, so that the driven wheel 11 drives the steel pipe to rotate. Preferably, the driven wheel 11 and the driving wheel 12 are made of a material with high friction.
Further, the base 10 is rotatably provided on the lifter plate 14, and the base 10 is rotated around the rotation center of the driving wheel 12.
In this embodiment, in order to make the supporting roller set 2041 adapt to steel pipes with different diameters, the base 10 is rotatably disposed on the lifting plate 14, and when the telescopic member 13 drives the supporting roller set 2041 to rise, the driven wheel 11 will abut against the steel pipes, and since the base 10 can rotate, the driven wheel 11 can automatically adjust the angle, so as to adapt to steel pipes with different diameters. Preferably, the driven wheels 11 are arranged symmetrically at two sides of the driving wheel 12. Preferably, in order to accommodate steel pipes of different lengths, a moving plate 211 is slidably provided on the receiving base 202, the screw 212 is driven to rotate by a third driving member 210, and the moving plate 211 is screwed with the screw 212, so that the moving plate 211 slides along the receiving base 202, the steel pipe abuts against the moving plate 211, and the distance between the moving plate 211 and the welding machine 3 is the length of the steel pipe, so that the steel pipes of different lengths can be accommodated by adjusting the position of the moving plate 211.
Further, the loading attachment 1 includes:
a support frame 101;
a first conveying member 102 provided on the support frame 101;
the second conveying member 103 is arranged on the supporting frame 101 in a vertically sliding manner, a conveying space 104 is formed between the first conveying member 102 and the second conveying member 103, a plurality of circular arc-shaped members 105 are arranged on the first conveying member 102 and the second conveying member 103 at intervals, the circular arc-shaped members 105 rotate along with the first conveying member 102 or the second conveying member 103 in a circulating manner, and when the circular arc-shaped members 105 are positioned in the conveying space 104, openings of the upper circular arc-shaped members 105 and the lower circular arc-shaped members 105 are close to each other;
the lifting driving member 106 is disposed on the supporting frame 101, and the lifting driving member 106 is used for driving the second conveying member 103 to lift up and down.
In this embodiment, in order to ensure smooth and convenient steel pipe feeding and rotation, a conveying space 104 is formed between the first conveying member 102 and the second conveying member 103, and the conveying space 104 is used for conveying the steel pipe, when the steel pipe needs to rotate, only the second conveying member 103 is required to rise, so that interference with the steel pipe can be avoided.
The steel pipe welding method comprises the following steps:
s1, feeding: the feeding device 1 firstly feeds a first steel pipe to the bearing table 202, then feeds a second steel pipe, the second steel pipe is pushed to advance after being abutted with the first steel pipe, when the first steel pipe is abutted with the moving plate 211, the second steel pipe is retracted for a certain distance, a gap is reserved between the second steel pipe and the first steel pipe, and after the feeding is completed, the lifting driving piece 106 drives the second conveying piece 103 to ascend;
s2, polishing: the telescopic piece 13 drives the supporting wheel group 2041 to ascend, the driven wheel 11 is abutted with two steel pipes, the grinding machine 4 is close to the position where the steel pipes need to be welded, the second driving piece 2043 drives the driven wheel 11 to rotate through the driving wheel 12, the two steel pipes rotate, and the grinding machine 4 performs grinding and derusting, groove polishing and the like on the steel pipes, so that the processes of derusting, impurity removing and the like are realized;
s3, heat preservation and heating: after polishing, the lifting table 6 descends, the magnetic piece 9 can be adsorbed on the outer wall of the steel pipe, then the supporting wheel group 2041 drives the steel pipe to rotate, the winding roller 7 releases the first protector Wen Ruancai, the first protector Wen Ruancai can rotate along with the steel pipe, and the first protector Wen Ruancai 8 is wound on the steel pipe; after winding is completed, the first driving piece 205 drives the movable seat 2081 to move towards the direction approaching to the first driving piece 205, at this time, the two ends of the connecting rod 2084 are respectively far away from the supporting piece 206 under the action of the first guiding block 2082 and the second guiding block 2083, so that the second heat-preserving soft material 207 is spread, the second heat-preserving soft material 207 is abutted with the steel pipe, the first protection Wen Ruancai, the steel pipe and the second heat-preserving soft material 207 form a heat-preserving layer, and the heating wire starts to heat and preserve heat; if the steel pipe is made of a material which is not absorbed by the magnetic piece 9, the connecting rod 2084 or the second heat-preserving soft material 207 is provided with the magnetic piece 9, the second heat-preserving soft material 207 is firstly close to the inner wall of the steel pipe, and the first heat-preserving soft material Wen Ruancai and the magnetic piece 9 on the second heat-preserving soft material 207 are attracted to each other, so that the first heat-preserving soft material Wen Ruancai is wound on the steel pipe; the supporting component 208 and the lifting platform 6 are used for adapting to steel pipes with different diameters, when encountering steel pipes with small diameters, the lifting platform 6 descends, so that the distance between the winding roller 7 and the steel pipes is reduced, more first protections Wen Ruancai are wound on the steel pipes, and the heat preservation effect is improved;
s4, welding: after a certain period of heat preservation, the first driving piece 205 drives the movable seat 2081 to be far away from the first driving piece 205, the second heat-preserving soft material 207 is extruded, the second heat-preserving soft material 207 is far away from the steel pipe, then the winding roller 7 and the riding wheel group 2041 rotate simultaneously, the first protector Wen Ruancai is wound on the winding roller 7, the welding machine 3 starts to weld, and the riding wheel group 2041 drives the steel pipe to rotate;
s5, heat preservation: repeating the step S3, and preserving heat for a period of time;
s6, blanking: the first driving member 205 drives the moving seat 2081 away from the first driving member 205, the second heat-insulating soft material 207 is extruded, the second heat-insulating soft material 207 leaves the steel pipe, then the winding roller 7 and the riding wheel group 2041 rotate simultaneously, the first protector Wen Ruancai is wound on the winding roller 7, the lifting driving member 106 drives the second conveying member 103 to descend, and then the steel pipe is conveyed away through the first conveying member 102 and the second conveying member 103.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (10)
1. A high temperature steel pipe welding apparatus for preventing delayed cracking, comprising:
a feeding device (1);
the bearing device (2) is arranged at the tail end of the feeding direction of the feeding device (1), and the bearing device (2) is used for bearing the high-temperature steel pipe;
the welding machine (3) is arranged at one side of the bearing device (2);
the grinding machine (4) is arranged on one side of the bearing device (2), and the grinding machine (4) and the welding machine (3) are positioned on the opposite side;
the heat preservation subassembly (5) is in adapting device (2) one side, heat preservation subassembly (5) with polisher (4) are located the homonymy, heat preservation subassembly (5) include:
a lifting table (6) arranged at one side of the bearing device (2);
the winding roller (7) is rotatably arranged on the lifting table (6), the lifting table (6) is used for driving the winding roller (7) to lift, and the rotation direction of the winding roller (7) is parallel to the axis of the steel pipe;
a first protector Wen Ruancai (8) wound on the winding roller (7), wherein the first protector Wen Ruancai (8) is provided with a heating wire for heating the steel pipe;
and the magnetic pieces (9) are arranged on the first protector Wen Ruancai (8) at intervals along the long sides of the first protector Wen Ruancai (8), and the magnetic pieces (9) are used for being adsorbed with the steel pipe.
2. A high temperature steel pipe welding apparatus for preventing delayed cracking according to claim 1, wherein said receiving means (2) comprises:
the rack (201) is arranged at the tail end of the feeding direction of the feeding device (1);
the bearing table (202) is arranged on the rack (201), the bearing table (202) is arc-shaped, and a plurality of through holes (203) are formed in the bottom of the bearing table (202);
the riding wheel device (204) is arranged on the frame (201), the riding wheel device (204) penetrates through the through hole (203), and the riding wheel device (204) is used for driving the steel pipe to rotate.
3. A high temperature steel pipe welding apparatus for preventing delayed cracking according to claim 2, wherein said receiving means (2) further comprises:
a first driving member (205) provided on the frame (201);
a support (206) disposed on the frame (201), the support (206) being located above the receiving table (202);
a driving rod (209) arranged at the output end of the first driving piece (205), wherein the driving rod (209) is rotatably arranged in the supporting piece (206);
the supporting piece (206) is provided with a supporting component (208), the supporting component (208) is connected with the driving rod (209), and the driving rod (209) is used for driving the supporting component (208) to support;
the second heat-preserving soft material (207) is arranged on the stretching assembly (208), the stretching assembly (208) is used for stretching the second heat-preserving soft material (207), and the second heat-preserving soft material (207) is propped against the inner wall of the steel pipe after being stretched.
4. A high temperature steel pipe welding apparatus for preventing delayed cracking according to claim 3, wherein said spreader assembly (208) comprises:
a moving seat (2081) slidably disposed on the support (206), the moving seat (2081) being threadedly connected to the driving rod (209);
a first guide block (2082) provided in a plurality and rotatably disposed on the support member (206);
the second guide blocks (2083) are provided with a plurality of rotating blocks and are arranged on the movable seat (2081), and the first guide blocks (2082) and the second guide blocks (2083) are arranged in an up-and-down layering mode;
connecting rod (2084), have a plurality of, a plurality of connecting rod (2084) are around support piece (206) circumference distributes, one connecting rod (2084) pass one in proper order first guide block (2082) and one second guide block (2083), and one first guide block (2082) and one second guide block (2083) only allow one connecting rod (2084) to pass, second heat preservation soft material (207) have two, a plurality of connecting rod (2084) homonymy one end is connected on same piece second heat preservation soft material (207).
5. A delayed crack preventing high temperature steel pipe welding apparatus as defined in claim 4 wherein said spreader assembly (208) further comprises:
the arc-shaped reset piece (2085) is provided with a plurality of connecting rods (2084), the second heat-insulation soft material (207) is arranged on the arc-shaped reset piece (2085), and the arc-shaped reset piece (2085) is a deformable reset arc-shaped piece.
6. The high temperature steel pipe welding apparatus for preventing delayed cracking according to claim 5, wherein said riding wheel device (204) comprises a plurality of riding wheel groups (2041), a transmission rod (2042) and a second driving member (2043), said plurality of riding wheel groups (2041) are arranged on said frame (201) at intervals, said riding wheel groups (2041) pass through said through holes (203), said transmission rod (2042) is used for connecting said plurality of riding wheel groups (2041), said second driving member (2043) is arranged on said frame (201), said second driving member (2043) is used for driving said transmission rod (2042) to rotate, said riding wheel groups (2041) comprise:
a base (10) disposed on the frame (201);
the driven wheel (11) is rotatably arranged on the base (10);
the driving wheel (12) is rotatably arranged on the base (10), the driving wheel (12) is used for driving the driven wheel (11) to rotate, the driven wheel (11) is used for driving the steel pipe to rotate, the transmission rod (2042) is connected with the driving wheel (12), and the transmission rod (2042) is used for driving the driving wheel (12) to rotate.
7. A high temperature steel pipe welding apparatus for preventing delayed cracking as recited in claim 6 further comprising:
the telescopic piece (13) is arranged on the frame (201), and the telescopic piece (13) stretches vertically;
the lifting plate (14) is arranged on the telescopic end of the telescopic piece (13), and the base (10) is arranged on the lifting plate (14).
8. A high temperature steel pipe welding apparatus for preventing delayed cracking according to claim 7, wherein said base (10) is rotatably provided on said elevation plate (14), and said base (10) is rotated around the rotation center of said driving wheel (12).
9. A high temperature steel pipe welding apparatus for preventing delayed cracking according to claim 8, wherein said feeding means (1) comprises:
a support (101);
a first conveying member (102) provided on the support frame (101);
the second conveying piece (103) is arranged on the supporting frame (101) in a vertical sliding mode and is located above the first conveying piece (102), a conveying space (104) is formed between the first conveying piece (102) and the second conveying piece (103), a plurality of circular arc-shaped pieces (105) are arranged on the first conveying piece (102) and the second conveying piece (103) at intervals, the circular arc-shaped pieces (105) rotate in a circulating mode along with the first conveying piece (102) or the second conveying piece (103), and when the circular arc-shaped pieces (105) are located in the conveying space (104), openings of the circular arc-shaped pieces (105) are close to each other;
and the lifting driving piece (106) is arranged on the supporting frame (101), and the lifting driving piece (106) is used for driving the second conveying piece (103) to lift up and down.
10. A method for welding a high temperature steel pipe for preventing delayed cracking, using a high temperature steel pipe welding apparatus for preventing delayed cracking according to claim 9, comprising the steps of:
s1, feeding: the feeding device (1) firstly feeds a first steel pipe to the bearing table (202), then feeds a second steel pipe, a gap is reserved between the second steel pipe and the first steel pipe, and after feeding is completed, the lifting driving piece (106) drives the second conveying piece (103) to lift;
s2, polishing: the telescopic part (13) drives the riding wheel group (2041) to ascend, the driven wheel (11) is abutted against two steel pipes, the grinding machine (4) is close to a position where the steel pipes need to be welded, the second driving part (2043) drives the driven wheel (11) to rotate through the driving wheel (12), the two steel pipes rotate, and the grinding machine (4) performs grinding rust removal and groove grinding on the steel pipes;
s3, heat preservation and heating: after polishing, the lifting table (6) descends, the magnetic piece (9) is adsorbed on the outer wall of the steel pipe, then the riding wheel set (2041) drives the steel pipe to rotate, the winding roller (7) releases the first protector Wen Ruancai (8), the first protector Wen Ruancai (8) can rotate along with the steel pipe, and the first protector Wen Ruancai (8) is wound on the steel pipe; then the first driving piece (205) drives the movable seat (2081) to move towards the direction close to the first driving piece (205), at the moment, the two ends of the connecting rod (2084) are respectively far away from the supporting piece (206) under the action of the first guide block (2082) and the second guide block (2083), so that the second heat-preserving soft material (207) is spread, the second heat-preserving soft material (207) is abutted with the steel pipe, the first heat-preserving Wen Ruancai (8), the steel pipe and the second heat-preserving soft material (207) form a heat-preserving layer, and the heating wire starts to heat and preserve heat;
s4, welding: after a certain period of heat preservation, the first driving piece (205) drives the movable seat (2081) to be far away from the first driving piece (205), the second heat-preservation soft material (207) is extruded, the second heat-preservation soft material (207) leaves the steel pipe, then the winding roller (7) and the riding wheel group (2041) rotate simultaneously, the first protector (Wen Ruancai) is wound on the winding roller (7), the welding machine (3) starts to weld, and the riding wheel group (2041) drives the steel pipe to rotate;
s5, heat preservation: repeating the step S3, and preserving heat for a period of time;
s6, blanking: the first driving piece (205) drives the movable seat (2081) to be far away from the first driving piece (205), the second heat-preserving soft material (207) is extruded, the second heat-preserving soft material (207) leaves the steel pipe, then the winding roller (7) and the riding wheel set (2041) rotate simultaneously, the first protection Wen Ruancai (8) is wound on the winding roller (7), the lifting driving piece (106) drives the second conveying piece (103) to descend, and then the steel pipe is conveyed away through the first conveying piece (102) and the second conveying piece (103).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310511387.6A CN116214176B (en) | 2023-05-09 | 2023-05-09 | High-temperature steel pipe welding equipment and welding method for preventing delayed cracking |
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| CN202310511387.6A CN116214176B (en) | 2023-05-09 | 2023-05-09 | High-temperature steel pipe welding equipment and welding method for preventing delayed cracking |
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| CN116214176B CN116214176B (en) | 2023-07-18 |
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|---|---|---|---|---|
| US5022150A (en) * | 1989-10-27 | 1991-06-11 | General Electric Company | Method for producing heat transfer tube with insitu heater |
| WO2002021962A1 (en) * | 2000-06-07 | 2002-03-21 | Trent West | Method of manufacturing composite articles including wear resistant jewelry |
| CN111571216A (en) * | 2020-05-27 | 2020-08-25 | 重庆工商大学 | Process centralized production line capable of improving rolling quality of pipeline steel |
| KR102473779B1 (en) * | 2022-06-17 | 2022-12-05 | 김지훈 | Manufacturing method of high pressure fuel pipe |
-
2023
- 2023-05-09 CN CN202310511387.6A patent/CN116214176B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5022150A (en) * | 1989-10-27 | 1991-06-11 | General Electric Company | Method for producing heat transfer tube with insitu heater |
| WO2002021962A1 (en) * | 2000-06-07 | 2002-03-21 | Trent West | Method of manufacturing composite articles including wear resistant jewelry |
| CN111571216A (en) * | 2020-05-27 | 2020-08-25 | 重庆工商大学 | Process centralized production line capable of improving rolling quality of pipeline steel |
| KR102473779B1 (en) * | 2022-06-17 | 2022-12-05 | 김지훈 | Manufacturing method of high pressure fuel pipe |
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Denomination of invention: A high-temperature steel pipe welding equipment and welding method for preventing delayed cracks Granted publication date: 20230718 Pledgee: Industrial and Commercial Bank of China Limited Qingxian Branch Pledgor: BAO RUI TONG PIPE INDUSTRY CO.,LTD. Registration number: Y2024980020557 |