CN110919490B - Welding post-treatment process for laying connection of long-distance oil pipeline system - Google Patents
Welding post-treatment process for laying connection of long-distance oil pipeline system Download PDFInfo
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- CN110919490B CN110919490B CN201911248892.6A CN201911248892A CN110919490B CN 110919490 B CN110919490 B CN 110919490B CN 201911248892 A CN201911248892 A CN 201911248892A CN 110919490 B CN110919490 B CN 110919490B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
- B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
- B24B9/04—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of metal, e.g. skate blades
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/08—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for flash removal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/02—Frames; Beds; Carriages
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
- B24B41/067—Work supports, e.g. adjustable steadies radially supporting workpieces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/02—Drives or gearings; Equipment therefor for performing a reciprocating movement of carriages or work- tables
- B24B47/08—Drives or gearings; Equipment therefor for performing a reciprocating movement of carriages or work- tables by mechanical gearing combined with fluid systems
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The invention belongs to the technical field of oil pipelines, and particularly relates to a welding post-treatment process for a laying connection part of a long-distance oil pipeline system, which comprises the following specific steps: step one, passivation treatment: passivating the welding seam at the laying connection position of the oil pipeline system by using an acid pickling passivation solution; step two, removing welding beading: the first mounting frame and the second mounting frame are clamped on the outer side wall of the joint of the oil pipeline, the first sliding strip and the second sliding strip are driven to rotate through the first motor, the beating mechanism is further driven to beat the welding line at the joint of the pipeline, and the grinding mechanism is driven to grind the beaten welding line; step three, spraying paint: and spraying anticorrosive paint on the laying connection of the oil pipeline system. The oil pipeline welding line polishing device can polish oil pipeline welding lines with different diameters. According to the invention, the beating mechanism is arranged, and the beating block repeatedly beats the welding beading on the welding seam of the oil pipeline, so that the polishing mechanism runs smoothly, and the polishing effect is improved.
Description
Technical Field
The invention belongs to the technical field of pipelines, and particularly relates to a welding post-treatment process for a laying connection part of a long-distance oil pipeline system.
Background
An oil pipeline system, namely a pipeline system for conveying petroleum, mainly comprises an oil pipeline, an oil station and other auxiliary related equipment, is one of main equipment in the petroleum storage and transportation industry, and is also the most main conveying equipment for crude oil and petroleum products. Compared with the railway and road oil transportation which belongs to the land transportation mode, the pipeline oil transportation has the characteristics of large transportation volume, good tightness, low cost, high safety factor and the like. The pipes of the oil pipeline are generally steel pipes, and are connected into a long-distance pipeline by using connection modes such as welding, flanges and the like. After the two oil pipelines are welded together, the weld beading attached to the weld joint needs to be removed. The traditional welding beading removing mode is that sand paper is adopted for polishing manually, the consumed manpower is more, and the removing effect is poor.
Chinese utility model patent with application number CN201820241329.0 shows a welding seam grinding device for petroleum pipeline, including first pipeline, the first support frame of left side fixedly connected with of first pipeline surface, the right-hand member fixedly connected with second pipeline of first pipeline, the right side fixedly connected with second support frame of second pipeline surface, the right side cover that the surface of first pipeline just is located first support frame is equipped with first casing and second casing. The device uses through the cooperation of first casing, second casing, third casing, fourth casing, hasp, fly leaf, head rod, second connecting rod, gyro wheel, dead lever, motor, gear and pinion rack, has solved among the manual operation pipeline and can lead to the uneven problem of thickness because of the atress is uneven, and has improved the efficiency of polishing. However, the following problems still exist in the process of treating the welding position of the oil pipeline by using the device in practice: (1) the grinding block cannot be tightly attached to the outer side walls of oil pipelines with different diameters; (2) the oil pipeline axial movement can not be realized, and the wide welding line can not be fully polished.
Disclosure of Invention
Technical problem to be solved
The invention provides a welding post-treatment process for laying joints of a long-distance oil pipeline system, and aims to solve the following problems in the process of treating the oil pipeline welding joints by adopting the conventional device: (1) the grinding block cannot be tightly attached to the outer side walls of oil pipelines with different diameters; (2) the oil pipeline axial movement can not be realized, and the wide welding line can not be fully polished.
(II) technical scheme
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a long distance oil pipeline system lays junction welding aftertreatment technology, this treatment process adopts following long distance oil pipeline system to lay junction welding aftertreatment device cooperation and accomplishes, long distance oil pipeline system lays junction welding aftertreatment device and includes two semicircular first mounting brackets, and two first mounting brackets fixed connection and both ends position correspond. One end of each of the two first mounting frames is hinged to one end of each of the two semicircular second mounting frames, and the two second mounting frames are fixedly connected and correspond to the two ends of each of the two semicircular second mounting frames. The radii of the first and second mounts are the same. Semicircular first chutes are formed in the opposite side faces of the two first mounting frames, semicircular second chutes are formed in the opposite side faces of the two second mounting frames, the radii of the first chutes and the radii of the second chutes are the same, and the positions of the notches correspond to each other. Sliding fit has first slider in the first spout, and sliding fit has the second slider in the second spout, and fixed mounting has first slide bar between the first slider, and the length of first slide bar equals the distance between two first mounting brackets. A second sliding rod is fixedly installed between the second sliding blocks, and the length of the second sliding rod is the same as that of the first sliding rod. After the first mounting frame and the second mounting frame are butted into a circle, the first sliding groove and the second sliding groove are butted into a circular groove; the first sliding block, the second sliding block, the first sliding rod and the second sliding rod can slide in the circular grooves.
An arc-shaped first sliding strip is in sliding fit with the first sliding rod, and an arc-shaped second sliding strip is in sliding fit with the second sliding rod. A semicircular first rack is fixedly mounted on the outer arc surface of the first sliding strip, and two ends of the first rack correspond to two ends of the first mounting frame. And a semicircular second rack is fixedly arranged on the outer arc surface of the second sliding strip, and the two ends of the second rack correspond to the two ends of the second mounting frame. The first rack and the second rack have the same radius. One of the two first mounting frames is provided with a first motor, the other first mounting frame is provided with a bearing frame, and an output shaft of the first motor is parallel to the axial direction of the first mounting frame and is in running fit with the bearing frame. The output shaft of the first motor is externally fixedly sleeved with a gear column meshed with the first rack and the second rack. A plurality of first air cylinders are uniformly and fixedly installed on the inner arc surfaces of the first installation frame and the second installation frame, and rubber blocks are fixedly installed at the end portions of the first air cylinders. The first slide bar is provided with a polishing mechanism, and the second slide bar is provided with a beating mechanism. In the using process of the device, the first mounting frame and the second mounting frame are moved to two sides of a welding seam of an oil pipeline, and the first mounting frame and the second mounting frame are butted together; drive the rubber block extension through first cylinder, contradict defeated oil pipe surface until the rubber block, first mounting bracket, second mounting bracket stabilize and support on defeated oil pipe lateral wall. The first motor drives the gear post to rotate, and the gear post and the first rack are in an engaged state and fixedly connected with each other, so that the first sliding strip can only rotate along the directions of the first sliding groove and the second sliding groove under the limiting effect of the first sliding rod, and the gear post can drive the first rack to rotate. Because first mounting bracket and second mounting bracket butt joint become a circular back, first rack and second rack also constitute a circular, and the tip of the two is contradicted together, so can promote the synchronous rotation of second rack when first rack rotates. The first sliding strip and the second sliding strip are driven to rotate in the rotating process of the first rack and the second rack; and then drive and beat the mechanism and beat the breakage and get rid of along defeated oil pipe welding seam circumference to the weld beading, and grinding mechanism polishes the welding seam along defeated oil pipe welding seam circumference.
The treatment process comprises the following specific steps:
step one, passivation treatment: and passivating the welding seam at the laying joint of the oil pipeline system by using an acid pickling passivation solution.
Step two, removing welding beading: the first mounting frame and the second mounting frame are clamped on the outer side wall of the joint of the oil conveying pipeline, the first sliding strip and the second sliding strip are driven to rotate through the first motor, then the knocking mechanism is driven to knock a welding seam at the joint of the oil conveying pipeline, and meanwhile the polishing mechanism is driven to polish the knocked welding seam.
Step three, spraying paint: and spraying anticorrosive paint on the laying connection of the oil pipeline system.
As a preferred technical scheme of the invention, the polishing mechanism comprises a plurality of second air cylinders which are uniformly and fixedly arranged on the inner arc surface of the first slide bar, and the end parts of the second air cylinders are fixedly provided with polishing blocks. And the second cylinder drives the grinding block to extend until the grinding block is abutted to the surface of the welding seam of the oil delivery pipe. When the first sliding strip rotates, the polishing block is driven to polish the welding line along the circumferential direction of the oil conveying pipe.
As a preferable technical solution of the present invention, the polishing block is cylindrical, and an axis of the polishing block is parallel to an axis of the first mounting bracket. Through holes are uniformly arranged on the grinding block. In the process of polishing the welding seam by the polishing block, the polished welding slag passes through the through hole and enters the barrel of the polishing block and is thrown out along with the rotation of the polishing block, so that the influence of the adhesion of the welding slag on the welding seam on the polishing effect is avoided.
As a preferred technical scheme of the present invention, the inner arc surface of the first slide bar is provided with third sliding grooves at two sides of the second cylinder, and the third sliding grooves are slidably fitted with third sliding blocks. The third slider is hinged with one end of a supporting rod, and the other end of the supporting rod is hinged with the end part of a piston rod of the second cylinder. A first spring is fixedly installed between the third sliding block and the side wall of the third sliding groove. The frictional force that the in-process of polishing was polished the piece and is received transmits the piston rod for the second cylinder, transmits again for the third slider through the bracing piece, finally transmits for first spring. The bracing piece plays the supporting role to second cylinder piston rod all the time in the process of polishing, prevents that the second cylinder from receiving the damage.
As a preferred technical scheme of the present invention, the rapping mechanism includes a plurality of cylinder sleeves uniformly installed on the inner arc surface of the second slide bar, a third cylinder is fixedly installed in the cylinder sleeves, and the cylinder sleeves and the second slide bar are in radial sliding fit along the second slide bar. The end part of the third cylinder is fixedly provided with a conical beating block. A fourth sliding groove is formed in the second sliding strip along the radial direction of the second sliding strip, and an adjusting rod parallel to the axis of the second mounting frame is in sliding fit with the fourth sliding groove. The opposite side surfaces of the first mounting frame and the second mounting frame are provided with wave-shaped limiting grooves along the circumferential direction, and two ends of the adjusting rod penetrate through two sides of the second sliding strip and extend into the limiting grooves. The adjusting rod is fixedly connected with the bottom of the cylinder sleeve. And pushing the knocking block through a third cylinder until the knocking block is abutted to the welding seam of the oil conveying pipe. The second draw runner rotates the in-process, drives the regulation pole and rotates along the spacing groove of wave type, adjusts the pole simultaneously and produces along defeated oil pipe radial beat, adjusts the pole and drives cylinder jacket, third cylinder and beat the piece pivoted while production along defeated oil pipe radial beat to beat the breakage to the weld beading on the defeated oil pipe welding seam. After being broken, the weld beading falls freely under the action of gravity and is separated from the welding seam of the oil delivery pipe.
As a preferable technical solution of the present invention, the top of the cylinder liner extends outward to form a circular support plate, and a second spring is fixedly installed between the support plate and the inner arc surface of the second slider. The adjusting rod drives cylinder jacket, third cylinder and beats the piece and produce along defeated oil pipe radial in-process of beating, and the second spring plays the cushioning effect to the backup pad to reduce the vibration of third cylinder, prevent that the third cylinder from receiving the damage.
According to a preferable technical scheme of the invention, a slot is formed in the end face of the other end of the first mounting frame, and a rubber insert block in interference fit with the slot is fixedly mounted on the end face of the other end of the second mounting frame. When the first mounting frame and the second mounting frame are butted together, the rubber insert is inserted into the slot, so that the first mounting frame and the second mounting frame are firmly connected together.
As a preferred technical solution of the present invention, the first sliding rod and the second sliding rod are fixedly connected with two mounting plates, wherein one mounting plate is fixedly mounted with the second motor. And a screw rod parallel to the axis of the first mounting frame is fixedly mounted at the output end of the second motor. The screw rod penetrates through the first slide bar or the second slide bar and is in running fit with the first slide bar or the second slide bar. The end part of the lead screw is in running fit with the other mounting plate. The screw rod is driven to rotate by the second motor, and the first sliding strip and the second sliding strip are respectively limited by the first sliding rod and the second sliding rod, so that only the first sliding strip and the second sliding strip can slide along the first sliding rod and the second sliding rod, namely slide along the axis of the oil conveying pipe, and the wider welding seam is beaten and polished.
(III) advantageous effects
The invention has the following beneficial effects:
(1) in the process of treating the welding position of the oil pipeline by adopting the welding post-treatment process for the laying connection position of the long-distance oil pipeline system, the rubber block is driven by the first cylinder to radially extend and retract along the oil pipeline, so that the oil pipeline with different diameters is fixed; the second cylinder drives the polishing block to stretch out and draw back along the radial direction of the oil pipeline, so that the polishing block is tightly attached to the outer side wall of the oil pipeline with different diameters, and the welding seams of the oil pipeline with different diameters are polished.
(2) The processing device for welding the laying connection of the long-distance oil pipeline system is provided with the knocking mechanism, and the knocking block repeatedly knocks weld beading on the welding seam of the oil pipeline in the rotating process of the knocking mechanism driven by the first motor, so that the weld beading is broken and separated from the outer wall of the oil pipeline, impact force and resistance applied to the polishing mechanism in the polishing process are reduced, the polishing mechanism runs smoothly, and the polishing effect is improved; on the other hand, the grinding mechanism is prevented from being damaged.
(3) According to the welding post-processing device for the laying connection part of the long-distance oil pipeline system, the screw rod is driven to rotate through the second motor, the first sliding strip, the second sliding strip, the polishing mechanism and the beating mechanism are driven to axially slide along the oil pipeline, and the first motor can always provide driving force for the rotation of the polishing mechanism and the beating mechanism in the sliding process of the polishing mechanism and the beating mechanism, so that welding beading is fully crushed, and wider welding seams are fully polished.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic view of a first structure of a welding post-treatment of a laying connection of a long-distance oil pipeline system in an embodiment of the invention;
FIG. 2 is a schematic diagram of a second structure of a welding post-treatment of a laying connection of a long-distance oil pipeline system in the embodiment of the invention;
FIG. 3 is an enlarged view of the point A in the embodiment of the present invention;
FIG. 4 is an enlarged view of the point B in the embodiment of the present invention;
fig. 5 is a schematic view of the internal structure of the tapping mechanism in the embodiment of the present invention;
fig. 6 is a step diagram of a post-welding treatment process for a laying connection of a long-distance oil pipeline system in the embodiment of the invention.
In the figure: 1-a first mounting frame, 2-a second mounting frame, 3-a first sliding chute, 4-a second sliding chute, 5-a first sliding block, 6-a second sliding block, 7-a first sliding rod, 8-a second sliding rod, 9-a first sliding strip, 10-a second sliding strip, 11-a first rack, 12-a second rack, 13-a first motor, 14-a bearing frame, 15-a gear column, 16-a first cylinder, 17-a rubber block, 18-a grinding mechanism, 181-a second cylinder, 182-a grinding block, 183-a through hole, 184-a third sliding chute, 185-a third sliding block, 186-a supporting rod, 187-a first spring, 19-a beating mechanism, 191-a cylinder jacket, 192-a third cylinder, 193-a beating block, 194-a fourth sliding chute, 195-an adjusting rod, 196-a limiting groove, 197-a supporting plate, 198-a second spring, 20-a slot, 21-a rubber insert, 22-a mounting plate, 23-a second motor and 24-a lead screw.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
As shown in fig. 1 to 6, the present embodiment provides a welding post-treatment process for a laying joint of a long-distance oil pipeline system, which is completed by matching a welding post-treatment device for a laying joint of a long-distance oil pipeline system, where the welding post-treatment device for a laying joint of a long-distance oil pipeline system includes two semicircular first mounting frames 1, and the two first mounting frames 1 are fixedly connected and correspond to each other in two end positions. The one end of two first mounting brackets 1 articulates 2 one ends of two semi-circular second mounting brackets, and two 2 fixed connection of second mounting bracket and both ends position correspond. The radii of the first mount 1 and the second mount 2 are the same. Semicircular first chutes 3 are formed in the opposite side faces of the two first mounting frames 1, semicircular second chutes 4 are formed in the opposite side faces of the two second mounting frames 2, the radii of the first chutes 3 and the radii of the second chutes 4 are the same, and the positions of the notches correspond to each other. Sliding fit has first slider 5 in first spout 3, and sliding fit has second slider 6 in second spout 4, and fixed mounting has first slide bar 7 between the first slider 5, and the length of first slide bar 7 equals the distance between two first mounting brackets 1. A second sliding rod 8 is fixedly arranged between the second sliding blocks 6, and the length of the second sliding rod 8 is the same as that of the first sliding rod 7. After the first mounting frame 1 and the second mounting frame 2 are butted into a circle, the first sliding groove 3 and the second sliding groove 4 are butted into a circular groove; the first slider 5, the second slider 6, the first slide rod 7 and the second slide rod 8 are slidable in the circular grooves.
An arc-shaped first slide bar 9 is slidably matched on the first slide bar 7, and an arc-shaped second slide bar 10 is slidably matched on the second slide bar 8. A semicircular first rack 11 is fixedly installed on the outer arc surface of the first sliding strip 9, and two ends of the first rack 11 correspond to two ends of the first installation frame 1. A semicircular second rack 12 is fixedly installed on the outer arc surface of the second slide bar 10, and two ends of the second rack 12 correspond to two ends of the second installation frame 2. The first rack 11 and the second rack 12 have the same radius. One of the two first mounting frames 1 is provided with a first motor 13, the other first mounting frame 1 is provided with a bearing frame 14, and an output shaft of the first motor 13 is parallel to the axial direction of the first mounting frame 1 and is in running fit with the bearing frame 14. The output shaft of the first motor 13 is fixedly sleeved with a gear column 15 which is meshed with the first rack 11 and the second rack 12. A plurality of first air cylinders 16 are uniformly and fixedly installed on the inner arc surfaces of the first installation frame 1 and the second installation frame 2, and rubber blocks 17 are fixedly installed at the end parts of the first air cylinders 16. A grinding mechanism 18 is mounted on the first slide 9, and a tapping mechanism 19 is mounted on the second slide 10. In the using process of the device, the first mounting frame 1 and the second mounting frame 2 are moved to two sides of a welding seam of an oil pipeline, and the first mounting frame 1 and the second mounting frame 2 are butted together; drive the rubber block 17 extension through first cylinder 16, contradict defeated oil pipe surface until rubber block 17, first mounting bracket 1, second mounting bracket 2 stabilize and support on defeated oil pipe lateral wall. And then the first motor 13 drives the gear post 15 to rotate, and because the gear post 15 and the first rack 11 are in a meshed state and the first rack 11 and the first slide bar 9 are fixedly connected, the first slide bar 9 can only rotate along the directions of the first sliding groove 3 and the second sliding groove 4 under the limiting action of the first sliding rod 7, so the gear post 15 can drive the first rack 11 to rotate. After the first mounting frame 1 and the second mounting frame 2 are butted into a circle, the first rack 11 and the second rack 12 also form a circle, and the end parts of the first rack 11 and the second rack 12 are butted together, so that the first rack 11 can push the second rack 12 to synchronously rotate when rotating. The first sliding strip 9 and the second sliding strip 10 are driven to rotate in the rotating process of the first rack 11 and the second rack 12; and then drive and beat mechanism 19 and beat the breakage and get rid of along defeated oil pipe welding seam circumference to the weld beading, and grinding mechanism 18 polishes the welding seam along defeated oil pipe welding seam circumference.
The treatment process comprises the following specific steps:
step one, passivation treatment: and passivating the welding seam at the laying joint of the oil pipeline system by using an acid pickling passivation solution.
Step two, removing welding beading: the first mounting frame 1 and the second mounting frame 2 are clamped on the outer side wall of the joint of the oil pipeline, the first motor 13 drives the first slide bar 9 and the second slide bar 10 to rotate, the knocking mechanism 19 is further driven to knock the welding line of the joint of the pipeline, and meanwhile the polishing mechanism 18 is driven to polish the knocked welding line.
Step three, spraying paint: and spraying anticorrosive paint on the laying connection of the oil pipeline system.
In this embodiment, the grinding mechanism 18 includes a plurality of second cylinders 181 uniformly and fixedly mounted on the inner arc surface of the first slide bar 9, and the end portions of the second cylinders 181 are fixedly mounted with grinding blocks 182. The second cylinder 181 drives the polishing block 182 to extend until the polishing block 182 abuts against the surface of the weld of the oil delivery pipe. When the first sliding strip 9 rotates, the polishing block 182 is driven to polish the weld along the circumferential direction of the oil pipeline.
In the present embodiment, the sanding block 182 is cylindrical, and the axis of the sanding block 182 is parallel to the axis of the first mounting bracket 1. The polishing block 182 is uniformly provided with through holes 183. In the process of polishing the welding seam by the polishing block 182, the polished welding slag passes through the through hole 183 and enters the barrel of the polishing block 182, and is thrown out along with the rotation of the polishing block 182, so that the influence of the adhesion of the welding slag on the welding seam on the polishing effect is avoided.
In this embodiment, the inner arc surface of the first slide bar 9 is located at two sides of the second cylinder 181 and is provided with a third sliding slot 184, and a third sliding block 185 is slidably fitted in the third sliding slot 184. One end of a supporting rod 186 is hinged on the third sliding block 185, and the other end of the supporting rod 186 is hinged at the end of the piston rod of the second cylinder 181. A first spring 187 is fixedly installed between the third slider 185 and the side wall of the third sliding groove 184. In the grinding process, the friction force applied to the grinding block 182 is transferred to the piston rod of the second cylinder 181, then transferred to the third slider 185 through the support rod 186, and finally transferred to the first spring 187. The bracing piece 186 plays the supporting role to second cylinder 181 piston rod all the time in the process of polishing, prevents that second cylinder 181 from receiving the damage.
In this embodiment, the rapping mechanism 19 includes a plurality of cylinder sleeves 191 uniformly installed on the intrados of the second slide bar 10, a third cylinder 192 is fixedly installed in the cylinder sleeves 191, and the cylinder sleeves 191 and the second slide bar 10 are in sliding fit along the radial direction of the second slide bar 10. A conical striking block 193 is fixedly mounted to an end of the third cylinder 192. A fourth sliding slot 194 is formed in the second sliding strip 10 along the radial direction thereof, and an adjusting rod 195 parallel to the axis of the second mounting bracket 2 is slidably fitted in the fourth sliding slot 194. The opposite side surfaces of the first mounting frame 1 and the second mounting frame 2 are circumferentially provided with wave-shaped limiting grooves 196, and two ends of the adjusting rod 195 penetrate through two sides of the second slide bar 10 and extend into the limiting grooves 196. The adjusting rod 195 is fixedly connected with the bottom of the cylinder sleeve 191. And pushing the knocking block 193 through the third air cylinder 192 until the knocking block 193 collides with the oil pipeline welding seam. In the rotation process of the second slide bar 10, the adjusting rod 195 is driven to rotate along the wave-shaped limiting groove 196, the adjusting rod 195 jumps along the radial direction of the oil delivery pipe, and the adjusting rod 195 drives the cylinder sleeve 191, the third cylinder 192 and the beating block 193 to jump along the radial direction of the oil delivery pipe, so that the welding beading on the welding seam of the oil delivery pipe is beaten and broken. After being broken, the weld beading falls freely under the action of gravity and is separated from the welding seam of the oil delivery pipe.
In this embodiment, the top of the cylinder sleeve 191 extends outward to form a circular supporting plate 197, and a second spring 198 is fixedly mounted between the supporting plate 197 and the inner arc surface of the second slider 10. The adjusting rod 195 drives cylinder cover 191, third cylinder 192 and beats the piece and produce along defeated oil pipe radial beat in-process, and second spring 198 plays the cushioning effect to backup pad 197 to reduce the vibration of third cylinder 192, prevent that third cylinder 192 from receiving the damage.
In this embodiment, a slot 20 is provided on an end surface of the other end of the first mounting bracket 1, and a rubber insert 21 that is in interference fit with the slot 20 is fixedly mounted on an end surface of the other end of the second mounting bracket 2. When the first and second mounting frames 1 and 2 are butted together, the rubber insert 21 is inserted into the insertion groove 20, thereby firmly connecting the first and second mounting frames 1 and 2 together.
In this embodiment, two mounting plates 22 are fixedly connected to the first sliding rod 7 and the second sliding rod 8, and a second motor 23 is fixedly mounted on one of the mounting plates 22. The output end of the second motor 23 is fixedly provided with a screw rod 24 parallel to the axis of the first mounting frame 1. The screw 24 penetrates through the first slide bar 9 or the second slide bar 10 and is in rotating fit with the first slide bar 9 or the second slide bar 10. The end of the lead screw 24 is rotationally engaged with the other mounting plate 22. The screw rod 24 is driven to rotate by the second motor 23, and the first slide bar 9 and the second slide bar 10 are respectively limited by the first sliding rod 7 and the second sliding rod 8, so that the first slide bar 9 and the second slide bar 10 can only slide along the first sliding rod 7 and the second sliding rod 8, namely slide along the axis of the oil pipeline, and the wider welding seam is beaten and polished.
The working process in the second step of this embodiment is: firstly, moving a first mounting rack 1 and a second mounting rack 2 to two sides of a welding seam of an oil pipeline, and butting the first mounting rack 1 and the second mounting rack 2 together; drive the rubber block 17 extension through first cylinder 16, contradict defeated oil pipe surface until rubber block 17, first mounting bracket 1, second mounting bracket 2 stabilize and support on defeated oil pipe lateral wall. Then the first motor 13 drives the gear post 15 to rotate, and the gear post 15 drives the first rack 11 to rotate. When the first rack 11 rotates, the second rack 12 is pushed to rotate synchronously. The first rack 11 and the second rack 12 drive the first slide bar 9 and the second slide bar 10 to rotate in the rotating process. The second cylinder 181 drives the polishing block 182 to extend until the polishing block 182 abuts against the surface of the weld of the oil delivery pipe. When the first sliding strip 9 rotates, the polishing block 182 is driven to polish the weld along the circumferential direction of the oil pipeline. And pushing the knocking block 193 through the third air cylinder 192 until the knocking block 193 collides with the oil pipeline welding seam. In the rotation process of the second slide bar 10, the adjusting rod 195 is driven to rotate along the wave-shaped limiting groove 196, the adjusting rod 195 jumps along the radial direction of the oil delivery pipe, and the adjusting rod 195 drives the cylinder sleeve 191, the third cylinder 192 and the beating block 193 to jump along the radial direction of the oil delivery pipe, so that the welding beading on the welding seam of the oil delivery pipe is beaten and broken. After being broken, the weld beading falls freely under the action of gravity and is separated from the welding seam of the oil delivery pipe. The second motor 23 drives the screw rod 24 to rotate, and the first slide bar 9 and the second slide bar 10 slide along the axis of the oil pipeline, so that a wider welding seam is beaten and polished.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a long distance oil pipeline system lays junction welding aftertreatment technology, this treatment process adopts the following long distance oil pipeline system to lay junction welding aftertreatment device cooperation and accomplishes which characterized in that: the welding post-treatment device for the laying connection of the long-distance oil pipeline system comprises two semicircular first mounting frames (1), wherein the two first mounting frames (1) are fixedly connected and correspond to each other in position at two ends; one end of each of the two first mounting frames (1) is hinged with one end of each of the two semicircular second mounting frames (2), the two second mounting frames (2) are fixedly connected, and the positions of the two ends of each second mounting frame correspond to each other; the radiuses of the first mounting frame (1) and the second mounting frame (2) are the same; the opposite side surfaces of the two first mounting frames (1) are provided with semicircular first sliding grooves (3), the opposite side surfaces of the two second mounting frames (2) are provided with semicircular second sliding grooves (4), the radiuses of the first sliding grooves (3) and the second sliding grooves (4) are the same, and the positions of the notches correspond to each other; a first sliding block (5) is in sliding fit in the first sliding groove (3), a second sliding block (6) is in sliding fit in the second sliding groove (4), a first sliding rod (7) is fixedly installed between the first sliding blocks (5), and the length of the first sliding rod (7) is equal to the distance between the two first mounting frames (1); a second sliding rod (8) is fixedly arranged between the second sliding blocks (6), and the length of the second sliding rod (8) is the same as that of the first sliding rod (7);
an arc-shaped first sliding strip (9) is matched on the first sliding rod (7) in a sliding way, and an arc-shaped second sliding strip (10) is matched on the second sliding rod (8) in a sliding way; a semicircular first rack (11) is fixedly arranged on the outer arc surface of the first sliding strip (9), and two ends of the first rack (11) correspond to two ends of the first mounting frame (1); a semicircular second rack (12) is fixedly arranged on the outer arc surface of the second sliding strip (10), and two ends of the second rack (12) correspond to two ends of the second mounting frame (2); the radiuses of the first rack (11) and the second rack (12) are the same; one of the two first mounting frames (1) is provided with a first motor (13), the other first mounting frame (1) is provided with a bearing frame (14), and an output shaft of the first motor (13) is parallel to the axial direction of the first mounting frame (1) and is in running fit with the bearing frame (14); a gear column (15) meshed with the first rack (11) and the second rack (12) is fixedly sleeved outside an output shaft of the first motor (13); a plurality of first air cylinders (16) are uniformly and fixedly arranged on the inner arc surfaces of the first mounting frame (1) and the second mounting frame (2), and rubber blocks (17) are fixedly arranged at the end parts of the first air cylinders (16); a polishing mechanism (18) is arranged on the first slide bar (9), and a beating mechanism (19) is arranged on the second slide bar (10);
the treatment process comprises the following specific steps:
step one, passivation treatment: passivating the welding seam at the laying connection position of the oil pipeline system by using an acid pickling passivation solution;
step two, removing welding beading: the first mounting frame (1) and the second mounting frame (2) are clamped on the outer side wall of the oil pipeline joint, a first motor (13) drives a first sliding strip (9) and a second sliding strip (10) to rotate, a beating mechanism (19) is further driven to beat a welding seam at the pipeline joint, and a polishing mechanism (18) is driven to polish the beaten welding seam;
step three, spraying paint: and spraying anticorrosive paint on the laying connection of the oil pipeline system.
2. The welding post-treatment process for the laying connection of the long-distance oil pipeline system according to claim 1, which is characterized in that: the polishing mechanism (18) comprises a plurality of second air cylinders (181) which are uniformly and fixedly mounted on the inner arc surface of the first sliding strip (9), and polishing blocks (182) are fixedly mounted at the end parts of the second air cylinders (181).
3. The welding post-treatment process for the laying connection of the long-distance oil pipeline system according to claim 2, characterized in that: the polishing block (182) is cylindrical, and the axis of the polishing block (182) is parallel to the axis of the first mounting frame (1); through holes (183) are uniformly arranged on the polishing block (182).
4. The welding post-treatment process for the laying connection of the long-distance oil pipeline system according to claim 2, characterized in that: the inner arc surface of the first sliding strip (9) is positioned at two sides of the second cylinder (181) and is provided with a third sliding chute (184), and a third sliding block (185) is in sliding fit with the third sliding chute (184); one end of a supporting rod (186) is hinged to the third sliding block (185), and the other end of the supporting rod (186) is hinged to the end of a piston rod of the second air cylinder (181); a first spring (187) is fixedly arranged between the third slide block (185) and the side wall of the third sliding chute (184).
5. The welding post-treatment process for the laying connection of the long-distance oil pipeline system according to claim 1, which is characterized in that: the rapping mechanism (19) comprises a plurality of cylinder sleeves (191) which are uniformly arranged on the inner arc surface of the second slide bar (10), a third cylinder (192) is fixedly arranged in each cylinder sleeve (191), and each cylinder sleeve (191) is in radial sliding fit with the second slide bar (10) along the second slide bar (10); a conical beating block (193) is fixedly arranged at the end part of the third cylinder (192); a fourth sliding chute (194) is formed in the second sliding strip (10) along the radial direction of the second sliding strip, and an adjusting rod (195) parallel to the axis of the second mounting frame (2) is in sliding fit with the fourth sliding chute (194); the opposite side surfaces of the first mounting frame (1) and the second mounting frame (2) are circumferentially provided with wave-shaped limiting grooves (196), and two ends of the adjusting rod (195) penetrate through two sides of the second slide bar (10) and extend into the limiting grooves (196); the adjusting rod (195) is fixedly connected with the bottom of the cylinder sleeve (191).
6. The welding post-treatment process for the laying connection of the long-distance oil pipeline system according to claim 5, characterized in that: the top of the cylinder sleeve (191) extends outwards to form a circular supporting plate (197), and a second spring (198) is fixedly mounted between the supporting plate (197) and the inner arc surface of the second slide bar (10).
7. The welding post-treatment process for the laying connection of the long-distance oil pipeline system according to claim 1, which is characterized in that: the rubber mounting structure is characterized in that a slot (20) is formed in the end face of the other end of the first mounting frame (1), and a rubber insert block (21) in interference fit with the slot (20) is fixedly mounted on the end face of the other end of the second mounting frame (2).
8. The welding post-treatment process for the laying connection of the long-distance oil pipeline system according to claim 1, which is characterized in that: the first sliding rod (7) and the second sliding rod (8) are fixedly connected with two mounting plates (22), wherein one mounting plate (22) is fixedly provided with a second motor (23); the output end of the second motor (23) is fixedly provided with a screw rod (24) parallel to the axis of the first mounting frame (1); the screw rod (24) penetrates through the first sliding strip (9) or the second sliding strip (10) and is in running fit with the first sliding strip (9) or the second sliding strip (10); the end of the lead screw (24) is rotationally matched with the other mounting plate (22).
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| CN111469009B (en) * | 2020-04-16 | 2020-11-20 | 广州阳城机械设备有限公司 | Energy-concerving and environment-protective pipe welding seam grinding device |
| CN111469000B (en) * | 2020-05-29 | 2021-07-06 | 中北大学 | Mechanical mechanism of pipeline polishing robot and working method thereof |
| CN112475681A (en) * | 2020-11-23 | 2021-03-12 | 哈尔滨蜜国郎物业有限公司 | Pipeline welding system |
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| CN113458904B (en) * | 2021-09-06 | 2021-11-19 | 徐州威德金属制品有限公司 | Welding seam grinding device |
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| CN116329704B (en) * | 2023-05-29 | 2023-12-12 | 扬州瀚翔船舶工程技术有限公司 | Pipeline welding device for ship manufacturing |
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