CN110076486B - Roller deflection type liner device for pipeline welding - Google Patents
Roller deflection type liner device for pipeline welding Download PDFInfo
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- CN110076486B CN110076486B CN201910357296.5A CN201910357296A CN110076486B CN 110076486 B CN110076486 B CN 110076486B CN 201910357296 A CN201910357296 A CN 201910357296A CN 110076486 B CN110076486 B CN 110076486B
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- 238000003466 welding Methods 0.000 title claims abstract description 42
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 46
- 239000010959 steel Substances 0.000 claims abstract description 46
- 238000000926 separation method Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 6
- 238000005096 rolling process Methods 0.000 claims abstract description 4
- 230000000903 blocking effect Effects 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 description 3
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910002110 ceramic alloy Inorganic materials 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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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
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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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
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Abstract
A roller deflection type gasket device for pipeline welding. The main purpose is to provide a roller deflection type pipeline welding auxiliary tool used for improving the welding quality when welding small and medium-diameter pipelines. The method is characterized in that: comprises a cushion roller part, a supporting deflection part, a long cylinder rotating part and a retraction separation part; the gasket roller component comprises an annular gasket, a gasket barrel frame, a bearing and a retainer ring; the supporting deflector piece comprises: the three-leg frame, the ball seat barrel, the positioning pin, the steel ball, the small round cushion and the ball seat spring; the long cylinder rotating part includes: the positioning barrel, the long supporting barrel and the crank are used for driving the device to rotate; the retraction and release component comprises a retraction and release wheel carrier, a pin shaft, a supporting wheel, a wheel carrier spring, a pull rope and a pull ring, and is used for controlling the supporting form of the device and realizing that the annular gasket is attached to or separated from the pipe wall. The device utilizes the eccentric rolling of the annular gasket to tightly stick to the inner wall of the steel pipe to seal the welding groove, a slightly convex welding seam can be formed, and the bearing strength of the welding seam is high.
Description
Technical Field
The invention relates to an auxiliary tool for pipeline welding, in particular to a roller deflection type liner device used for improving welding quality during welding of medium and small-diameter pipelines.
Background
The use of a weld pad can greatly improve the quality of the weld. At present, pipeline welding mouth-aligning devices with gasket parts are developed at home and abroad, and the gasket technology is applied to the welding process of large-diameter pipelines. However, the medium and small caliber pipeline cannot be installed in a pipeline welding butt joint device with a complex structure due to the narrow radial space. In recent years, some simple devices for blocking a pipeline welding groove by splicing small blocky gaskets exist, but the blocky gaskets cannot be provided with shallow arc-shaped grooves, a formed welding seam is straight instead of a slightly convex shape, and the bearing strength of the welding seam is low. Therefore, the existing gasket device has some defects in the welding process of the medium and small caliber pipelines.
Disclosure of Invention
In order to solve the technical problems mentioned in the background technology, the invention provides a roller deflection type liner device for pipeline welding, which achieves the purpose of sealing a welding groove by utilizing an annular liner to eccentrically roll and tightly attach to the inner wall of a steel pipe, the annular liner is provided with a shallow arc-shaped groove, a slightly convex welding line can be formed, and the bearing strength of the welding line is high.
The technical scheme of the invention is as follows: the roller deflection type liner device for pipeline welding comprises a liner roller part, a supporting deflection part, a long cylinder rotating part and a retraction separation part; the method is characterized in that:
the liner roller component comprises an annular liner, a liner barrel frame, a bearing and a retainer ring; wherein,
the annular gasket is annular, and an arc-shaped shallow groove is formed in the middle of the outer wall of the gasket; the annular gasket is arranged on the gasket barrel frame and is used for pressing the radial top of the supporting deflection part to be attached to the inner wall of the steel pipe on the other side to seal off a section of welding groove; the gasket barrel frame is a short cylinder, the outer wall of the gasket barrel frame is used for mounting an annular gasket, an inner hole is used for mounting a bearing, and a threaded hole is processed in the end face of one side of the gasket barrel frame and used for mounting a check ring; the bearings are radial ball bearings, the two bearings are mounted on the long supporting cylinder in parallel, and the outer ring of the bearing is provided with a liner cylinder frame, so that the free rotation between the annular liner and the long supporting cylinder is realized; the retainer ring is a circle with a hole, is arranged on the end face of the liner cylinder frame through a bolt and is used for blocking the annular liner and the bearing outer ring;
the supporting deflector piece comprises: the three-leg frame, the ball seat barrel, the positioning pin, the steel ball, the small round cushion and the ball seat spring; the three-leg frame is formed by welding a short cylinder and three small cylinders together, and the short cylinder is sleeved on the long supporting cylinder and fixed by screws; the small cylinders are respectively welded on the outer wall of the short cylinder along three vertical directions and used for connecting the ball seat cylinder, and key slot holes are transversely drilled on the small cylinders and used for limiting the stroke of the positioning pins; the ball seat cylinder is a small cylinder and is sleeved on the small cylinder of the three-leg frame, and a steel ball, a small circular cushion and a ball seat spring are contained in the ball seat cylinder; the outlet hole at the outer side of the ball seat barrel is slightly contracted to prevent the steel ball from falling off, and a positioning pin is inserted into the side surface of the ball seat barrel; the positioning pin is a small cylinder and is inserted into the side hole of the ball seat cylinder and the small cylinder key slot hole of the three-leg frame to prevent the ball seat cylinder from falling off; the steel ball is arranged in the ball seat cylinder and used for reducing the friction resistance with the inner wall of the steel pipe; the small round pad is arranged in the ball seat cylinder and used for separating the steel ball from the ball seat spring; the ball seat spring is a small compression spring, is arranged in the ball seat barrel and is used for jacking the steel ball;
the two sets of supporting deflection top parts are respectively distributed on the front side and the rear side of the pad roller part and are used for supporting three radial directions in the front part of the device and applying radial top pressure to the fourth direction so that the annular pad is tightly attached to the inner wall of the steel pipe in the rolling process;
the long cylinder rotating part includes: the positioning barrel, the long supporting barrel and the crank are used for driving the device to rotate; the positioning cylinder is a short cylinder, is sleeved on the long supporting cylinder, is positioned between the front supporting deflection top part and the cushion roller part, and is used for positioning and preventing the bearing from moving; the long supporting cylinder is in a long and thin cylindrical shape and serves as a device main body for mounting other components on the long supporting cylinder and transmitting the rotation of the rear part to the front part; two threaded holes are processed at two positions of the front part of the long supporting cylinder, and the two three-leg frames are fixed on the long supporting cylinder through screws; a boss, a pair of large lugs and a small lug are machined or welded between two threaded holes of the long supporting cylinder, the boss is used for positioning a bearing, a groove is formed in the middle pipe wall of the pair of large lugs and used for installing a retractable wheel carrier, and the small lug is used for installing a wheel carrier spring; a gap and a small groove are processed at the tail part of the long supporting cylinder, the gap is used for loosening the pull ring, and the small groove is used for tightening the pull ring and then clamping the pull ring; the crank is formed by welding a short rod and a cylinder into an L shape, the short rod is welded at the tail part of the long supporting barrel, and the long supporting barrel is driven to rotate by shaking;
the retraction separation component comprises a retraction wheel carrier, a pin shaft, a support wheel, a wheel carrier spring, a pull rope and a pull ring, and is used for controlling the support form of the device in the fourth radial direction to realize that the annular gasket is attached to or separated from the pipe wall; the retracting wheel frame is a small oblique angle long slat, is arranged on a pair of large support lugs of the long support cylinder, and can swing around a shaft to realize the function of retracting the support wheel; four holes and a bulge are processed on the take-up and pay-off wheel carrier, and the small hole at the upper part is used for connecting a steel wire rope; the middle small hole is used for being mounted on the large lug through a pin shaft; the small hole at the right side of the lower part is used for connecting a wheel carrier spring; the left side of the lower part is provided with a small bulge which is used for propping against the liner barrel frame when being supported; the lowest small hole is used for mounting a pair of supporting wheels through a pin shaft; the supporting wheels are a pair of small wheels, are arranged in small holes in the lower part of the retractable wheel frame through pin shafts and are used for reducing the friction resistance when the device is placed into or taken out of a pipeline; the wheel frame spring is a small extension spring, is connected between a small hole on the right side of the lower part of the retractable wheel frame and a small support lug on the front part of the long support cylinder and is used for retracting the retractable wheel frame; the pull rope is a thin steel wire rope, and a small hole at the upper part of the retractable wheel frame at the front part of the connecting device and a pull ring at the tail part of the connecting device are used for controlling the swinging of the retractable wheel frame; the pull ring is a circular ring, the diameter of the pull ring is slightly larger than the inner diameter of the long supporting cylinder, and the pull ring is placed at the tail notch of the long supporting cylinder and used for pulling the pull rope.
The invention has the following beneficial effects: the invention has the beneficial effects that: 1. the radial size of the liner device is small, and the liner device is suitable for medium and small caliber pipelines; 2. the annular gasket is provided with an arc shallow groove, which is beneficial to forming the appearance of a slightly convex welding seam; 3. the material of the liner can be copper alloy or ceramic material; 4. the gasket device has a simple structure and is very convenient to operate.
Description of the drawings:
FIG. 1 is a cross-sectional view of a gasket device;
FIG. 2 is a cross-sectional view of the device with the liner detached from the tube wall;
FIG. 3 is a partial cross-sectional view of the liner as it is pulled away from the tube wall;
FIG. 4 is a cross-sectional view of the device with the liner against the tube wall;
FIG. 5 is a partial cross-sectional view of the liner against the wall of the pipe;
FIG. 6 is a cross-sectional view of the liner against the wall of the tube;
FIG. 7 is a cross-sectional view of the retracting wheel frame;
FIG. 8 is a cross-sectional view of an elongated support cylinder;
FIG. 9 is a cross-sectional view of an annular gasket;
FIG. 10 is a cross-sectional view of a gasket cartridge holder;
FIG. 11 is a cross-sectional view of a three-legged stand;
FIG. 12 is a partial cross-sectional view of the ball seat barrel portion;
FIG. 13 is a front view of the three leg stand;
FIG. 14 is a cut-away left side view of the three leg rack;
FIG. 15 is a cross-sectional view of the socket barrel;
FIG. 16 is a front view of the retraction wheel carriage;
fig. 17 is a front view of the crank.
In the figure: 1. a positioning cylinder; 2. a bearing; 3. a retainer ring; 4. an annular gasket; 5. a liner barrel stand; 6. a long support cylinder; 7. a three-legged frame; 8. positioning pins; 9. a steel ball; 10. a ball seat barrel; 11. a small round pad; 12. a ball seat spring; 13. pulling a rope; 14. a pull ring; 15. a crank; 16. a wheel carrier spring; 17. retracting and releasing the wheel carrier; 18. a support wheel; 19. a pin shaft; 20. a steel pipe; 21. and (7) welding seams.
The specific implementation mode is as follows:
the invention will be further described with reference to the accompanying drawings in which:
the technical scheme adopted by the invention for solving the technical problems is as follows: the device comprises the following components: the device comprises four parts, namely a cushion roller part, a supporting deflection part, a long cylinder rotating part and a storing and releasing separation part.
The pad roller unit includes: the annular gasket, the gasket barrel frame, the bearing and the retainer ring are used for sealing the welding groove by the gasket clinging to the inner wall of the steel pipe.
The annular gasket is made of ceramic or copper alloy materials, the gasket is circular, the outer diameter of the gasket is slightly smaller than the inner diameter of a steel pipe to be welded, and an arc-shaped shallow groove is formed in the middle of the outer wall of the gasket and used for forming the shape of a slightly-convex welding seam; the annular gasket is arranged on the gasket barrel frame, and is pressed against the inner wall of the steel pipe at the other side under the radial jacking pressure of the supporting deflection part to seal a section of welding groove.
The liner barrel frame is a short cylinder, the outer wall of the liner barrel frame is used for mounting an annular liner, the inner hole of the liner barrel frame is used for mounting a bearing, and a threaded hole is machined in the end face of one side of the liner barrel frame and used for mounting a check ring.
The bearing is a radial ball bearing, the two bearings are arranged on the long supporting cylinder in parallel, and the bearing outer ring is provided with a liner cylinder frame, so that the free rotation between the annular liner and the long supporting cylinder is realized.
The retainer ring is a circle with a hole, is arranged on the end face of the liner cylinder frame through a bolt and is used for blocking the annular liner and the bearing outer ring.
The supporting deflector piece comprises: three-leg rack, ball seat barrel, locating pin, steel ball, little round cushion, ball seat spring.
The three-leg frame is formed by welding a short cylinder and three small cylinders together, and the short cylinder is sleeved on the long supporting cylinder and fixed by screws; the small cylinders are respectively welded on the outer wall of the short cylinder along three vertical directions and used for connecting the ball seat cylinder, and key slot holes are transversely drilled on the small cylinders and used for limiting the stroke of the positioning pins.
The ball seat cylinder is a small cylinder and is sleeved on the small cylinder of the three-leg frame, and a steel ball, a small circular cushion and a ball seat spring are contained in the ball seat cylinder; the outlet hole at the outer side of the ball seat cylinder is slightly contracted, so that the steel ball is prevented from falling; the side surface of the ball seat barrel is provided with a hole, and a positioning pin is inserted.
The positioning pin is a small cylinder and is inserted into the side hole of the ball seat cylinder and the small cylinder key slot hole of the three-leg frame to prevent the ball seat cylinder from falling off.
The steel ball is arranged in the ball seat cylinder and used for reducing the friction resistance with the inner wall of the steel pipe.
The small round pad is arranged in the ball seat cylinder and used for separating the steel ball from the ball seat spring.
The ball seat spring is a small compression spring and is arranged in the ball seat barrel for jacking the steel ball.
The supporting deflection top parts are respectively distributed on the front side and the rear side of the cushion roller part and used for supporting three radial directions of the front part of the device and applying radial top pressure to the fourth direction, so that the annular cushion is tightly attached to the inner wall of the steel pipe in the rolling process.
The long cylinder rotating part includes: the positioning barrel, the long supporting barrel and the crank are used for driving the device to rotate.
The positioning cylinder is a short cylinder, is sleeved on the long supporting cylinder, is positioned between the front supporting deflection part and the cushion roller part, and is used for positioning and preventing the bearing from moving.
The long support cylinder is a long and thin cylinder shape, is slightly longer than a steel pipe, is used as a device main body for installing other components on the long support cylinder and transmits the rotation of the rear part to the front part. Two threaded holes are processed at two positions of the front part of the long supporting cylinder, and the two three-leg frames are fixed on the long supporting cylinder through screws; a boss, a pair of large lugs and a small lug are machined or welded between two threaded holes of the long supporting cylinder, the boss is used for positioning a bearing, a groove is formed in the middle pipe wall of the pair of large lugs and used for installing a retractable wheel carrier, and the small lug is used for installing a wheel carrier spring; a gap and a small groove are processed at the tail part of the long supporting cylinder, the gap is used for loosening the pull ring, and the small groove is used for tightening the pull ring and then clamping the pull ring.
The crank is welded into an L shape by a short rod and a cylinder, the short rod is welded at the tail part of the long supporting barrel, and the long supporting barrel is driven to rotate by shaking.
The retraction separation component comprises a retraction wheel carrier, a pin shaft, a support wheel, a wheel carrier spring, a pull rope and a pull ring, and is used for controlling the support form of the device in the fourth radial direction to realize that the annular gasket is attached to or separated from the pipe wall.
The retracting wheel frame is a small oblique angle long slat, is arranged on a pair of large support lugs of the long support cylinder, and can swing around a shaft to realize the function of retracting the support wheels. Four holes and a bulge are processed on the take-up and pay-off wheel carrier, and the small hole at the upper part is used for connecting a steel wire rope; the middle small hole is used for being mounted on the large lug through a pin shaft; the small hole at the right side of the lower part is used for connecting a wheel carrier spring; the left side of the lower part is provided with a small bulge which is used for propping against the liner barrel frame when being supported; the lowest small hole is used for mounting a pair of supporting wheels through a pin shaft.
The supporting wheels are a pair of small wheels and are arranged in small holes in the lower part of the retractable wheel frame through pin shafts, and the supporting wheels are used for reducing the friction resistance when the device is placed into or pulled out of a pipeline.
The wheel frame spring is a small extension spring, is connected between a small hole on the right side of the lower part of the retractable wheel frame and a small support lug on the front part of the long support cylinder, and is used for retracting the retractable wheel frame.
The pull rope is a thin steel wire rope, and a small hole in the upper part of the retractable wheel frame in the front of the connecting device and a pull ring at the tail of the device are connected for controlling the swinging of the retractable wheel frame.
The pull ring is a circular ring, the diameter of the pull ring is slightly larger than the inner diameter of the long supporting cylinder, and the pull ring is placed at the tail notch of the long supporting cylinder and used for pulling the pull rope.
The functional principle and the operation process of the device are as follows:
firstly, placing a liner device at an inlet of a steel pipe to be welded, pulling a pull ring to be hung and clamped at a small groove at the tail part of a long support cylinder, pulling a retraction wheel frame by a pull rope to swing clockwise to prop up a support wheel, wherein the whole support of the liner device in a pipeline is born by a steel ball supporting a deflection top part and the support wheel supporting a retraction separation part; then the liner device is pushed into the steel pipe, the supported supporting wheels protect the annular liner from contacting the inner wall of the steel pipe, and the annular liner is prevented from colliding with the pipe wall and being damaged (see fig. 2 and 3).
Secondly, moving an annular gasket to be installed to a welding groove of the steel pipe, pulling a pull ring to loosen the pull ring, then placing the annular gasket at a gap at the tail part of the long supporting cylinder, releasing the pulling force of a pull rope, stretching a retractable wheel frame by a wheel frame spring to retract a supporting wheel, and tightly attaching the annular gasket to the inner wall of the steel pipe under the jacking of a supporting deflection top part to seal a section of groove to be welded; and manually or automatically welding the outside of the pipeline, and simultaneously shaking a crank at the tail part of the device to rotate the gasket device in the same direction as welding so as to synchronize the plugging stroke of the eccentric rotation of the annular gasket with the external welding speed (see fig. 4, 5 and 6).
And thirdly, after the pipeline is welded, pulling the pull ring to enable the pull ring to be hung and clamped at the small groove at the tail part of the long support cylinder, pulling the retracting wheel frame by the pull rope to support the support wheel, separating the annular gasket from the pipeline welding line, and finally drawing out the gasket device from the pipeline.
Claims (1)
1. A roller deflection type liner device for pipeline welding comprises a liner roller part, a supporting deflection part, a long cylinder rotating part and a retraction separation part; the method is characterized in that:
the liner roller component comprises an annular liner, a liner barrel frame, a bearing and a retainer ring; wherein,
the annular gasket is annular, and an arc-shaped shallow groove is formed in the middle of the outer wall of the annular gasket; the annular gasket is arranged on the gasket barrel frame and is used for pressing the radial top of the supporting deflection part to be attached to the inner wall of the steel pipe on the other side to seal off a section of welding groove; the gasket barrel frame is a short cylinder, the outer wall of the gasket barrel frame is used for mounting an annular gasket, an inner hole is used for mounting a bearing, and a threaded hole is processed in the end face of one side of the gasket barrel frame and used for mounting a check ring; the bearings are radial ball bearings, the two bearings are mounted on the long supporting cylinder in parallel, and the outer ring of the bearing is provided with a liner cylinder frame, so that the free rotation between the annular liner and the long supporting cylinder is realized; the retainer ring is a circle with a hole, is arranged on the end face of the liner cylinder frame through a bolt and is used for blocking the annular liner and the bearing outer ring;
the supporting deflector piece comprises: the three-leg frame, the ball seat barrel, the positioning pin, the steel ball, the small round cushion and the ball seat spring; the three-leg frame is formed by welding a short cylinder and three small cylinders together, and the short cylinder is sleeved on the long supporting cylinder and fixed by screws; the small cylinders are respectively welded on the outer wall of the short cylinder along three vertical directions and used for connecting the ball seat cylinder, and key slot holes are transversely drilled on the small cylinders and used for limiting the stroke of the positioning pins; the ball seat cylinder is a small cylinder and is sleeved on the small cylinder of the three-leg frame, and a steel ball, a small circular cushion and a ball seat spring are contained in the ball seat cylinder; a hole is formed in the side surface of the ball seat barrel, and a positioning pin is inserted; the positioning pin is a small cylinder and is inserted into the side hole of the ball seat cylinder and the small cylinder key slot hole of the three-leg frame to prevent the ball seat cylinder from falling off; the steel ball is arranged in the ball seat cylinder and used for reducing the friction resistance with the inner wall of the steel pipe; the small round pad is arranged in the ball seat cylinder and used for separating the steel ball from the ball seat spring; the ball seat spring is a small compression spring, is arranged in the ball seat barrel and is used for jacking the steel ball;
the two sets of supporting deflection top parts are respectively distributed on the front side and the rear side of the pad roller part and are used for supporting three radial directions in the front part of the device and applying radial top pressure to the fourth direction so that the annular pad is tightly attached to the inner wall of the steel pipe in the rolling process;
the long cylinder rotating part includes: the positioning barrel, the long supporting barrel and the crank are used for driving the device to rotate; the positioning cylinder is a short cylinder, is sleeved on the long supporting cylinder, is positioned between the front supporting deflection top part and the cushion roller part, and is used for preventing the bearing from moving; the long supporting cylinder is in a long and thin cylindrical shape and serves as a device main body, and the rotation of the rear part is transmitted to the front part; two threaded holes are processed in the front part of the long supporting cylinder, and the two three-leg frames are fixed on the long supporting cylinder through screws; a boss, a pair of large lugs and a small lug are welded between two threaded holes of the long supporting cylinder, the boss is used for positioning a bearing, a groove is formed in the cylinder wall of the long supporting cylinder between the pair of large lugs and used for installing a retractable wheel carrier, and the small lug is used for installing a wheel carrier spring; a gap and a small groove are processed at the tail part of the long supporting cylinder, the gap is used for loosening the pull ring, and the small groove is used for tightening the pull ring and then clamping the pull ring; the crank is formed by welding a short rod and a cylinder into an L shape, the short rod is welded at the tail part of the long supporting barrel, and the long supporting barrel is driven to rotate by shaking the crank;
the retraction separation component comprises a retraction wheel carrier, a pin shaft, a support wheel, a wheel carrier spring, a pull rope and a pull ring, and is used for controlling the support form of the device in the fourth radial direction to realize that the annular gasket is attached to or separated from the pipe wall; the retractable wheel frame is a small oblique angle long slat and is arranged on a pair of large lugs of the long supporting cylinder; four small holes and a small bulge are processed on the take-up and pay-off wheel carrier, and the small hole at the upper part is used for connecting a steel wire rope; the middle small hole is used for being mounted on the large lug through a pin shaft; the small hole at the right side of the lower part is used for connecting a wheel carrier spring; the left side of the lower part is provided with a small bulge which is used for propping against the liner barrel frame when being supported; the lowest small hole is used for mounting a pair of supporting wheels through a pin shaft; the supporting wheels are a pair of small wheels, are arranged in the small holes at the lowest part of the retractable wheel frame through pin shafts and are used for reducing the friction resistance when the device is placed into or pulled out of a pipeline; the wheel frame spring is a small extension spring, is connected between a small hole on the right side of the lower part of the retractable wheel frame and a small support lug on the front part of the long support cylinder and is used for retracting the retractable wheel frame; the pull rope is a thin steel wire rope, and a small hole at the upper part of the retractable wheel frame at the front part of the connecting device and a pull ring at the tail part of the connecting device are used for controlling the swinging of the retractable wheel frame; the pull ring is a circular ring, the diameter of the pull ring is slightly larger than the inner diameter of the long supporting cylinder, and the pull ring is placed at the tail notch of the long supporting cylinder and used for pulling the pull rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910357296.5A CN110076486B (en) | 2019-04-29 | 2019-04-29 | Roller deflection type liner device for pipeline welding |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910357296.5A CN110076486B (en) | 2019-04-29 | 2019-04-29 | Roller deflection type liner device for pipeline welding |
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| CN110076486A CN110076486A (en) | 2019-08-02 |
| CN110076486B true CN110076486B (en) | 2021-02-05 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113042946A (en) * | 2021-04-07 | 2021-06-29 | 刘大宇 | Pipeline welding device capable of reducing influence of gravity on welding seam |
| CN113714726B (en) * | 2021-08-25 | 2022-12-16 | 中国一冶集团有限公司 | Steel pipe welding liner installation auxiliary device |
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| US3806020A (en) * | 1972-05-12 | 1974-04-23 | Exxon Research Engineering Co | Apparatus for welding of pipe by use of explosives |
| CN2033724U (en) * | 1988-05-12 | 1989-03-08 | 机械工业委员会哈尔滨焊接研究所 | Retrievable padding means for butt-welded pipes |
| US5323950A (en) * | 1993-07-29 | 1994-06-28 | General Dynamics Corporation, Space Systems | Flexible, adjustable welding backup mandrel |
| JPH07314187A (en) * | 1994-05-26 | 1995-12-05 | Teikoku Chuck Kk | Centering/straightening device for welding circular pipe |
| CN107825059A (en) * | 2017-11-02 | 2018-03-23 | 东北石油大学 | Pipeline welding arc cushion device |
-
2019
- 2019-04-29 CN CN201910357296.5A patent/CN110076486B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3806020A (en) * | 1972-05-12 | 1974-04-23 | Exxon Research Engineering Co | Apparatus for welding of pipe by use of explosives |
| CN2033724U (en) * | 1988-05-12 | 1989-03-08 | 机械工业委员会哈尔滨焊接研究所 | Retrievable padding means for butt-welded pipes |
| US5323950A (en) * | 1993-07-29 | 1994-06-28 | General Dynamics Corporation, Space Systems | Flexible, adjustable welding backup mandrel |
| JPH07314187A (en) * | 1994-05-26 | 1995-12-05 | Teikoku Chuck Kk | Centering/straightening device for welding circular pipe |
| CN107825059A (en) * | 2017-11-02 | 2018-03-23 | 东北石油大学 | Pipeline welding arc cushion device |
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