CN112881277A - Electromagnetic fixed type steel pipe local cutting test device - Google Patents
Electromagnetic fixed type steel pipe local cutting test device Download PDFInfo
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- CN112881277A CN112881277A CN202110083734.0A CN202110083734A CN112881277A CN 112881277 A CN112881277 A CN 112881277A CN 202110083734 A CN202110083734 A CN 202110083734A CN 112881277 A CN112881277 A CN 112881277A
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- motor
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- main frame
- electromagnetic
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
- G01N2001/2873—Cutting or cleaving
Abstract
The invention relates to an electromagnetic fixed type steel pipe local cutting test device, which comprises a main frame (1), an electromagnetic fixed system, a sliding rod system, a motor lifting system and a control console, wherein the electromagnetic fixed system comprises: a fixing clamp (5), a fixing clamp torsion bar (10) and an electromagnetic generator; the fixing clamp torsion bar (10) comprises a screw cap (11), a screw (12) and a round joint (13), a bolt hole is formed in the main frame (1), the external thread of the screw (12) of the fixing clamp torsion bar (10) is matched with the bolt hole of the main frame (1), the fixing clamp torsion bar (10) is assembled with the main frame (1) through threads, and the fixing clamp (5) is rotatably connected to the lower portion of the screw (12) through the round joint (13); the electromagnetic generator is fixed on the main frame (1).
Description
The technical field is as follows:
the embodiment of the invention relates to the technical field of ocean engineering, in particular to an electromagnetic fixed type steel pipe local cutting test device.
Background art:
in recent years, the exploration and development of marine resources become a hot problem, and abundant marine resources are important energy sources of the country. The exploitation and transportation of deep sea resources are an extremely important link, and at the present stage, the main transportation mode depends on a submarine pipeline. The submarine pipeline has many advantages, the transportation volume is large, the submarine pipeline is reliable and stable, the submarine pipeline is not influenced by weather, and the like, however, the leakage damage accidents of the submarine pipeline are not rare, and the loss and the damage to the environment are difficult to measure. In order to improve the reliability of submarine pipeline transportation and avoid the loss caused by accidents, the buckling test of the submarine pipeline is indispensable.
The steel pipeline is inevitably corroded in seawater, and the thinning of the pipe wall is one of the biggest hidden trouble factors. In the bending failure research test of the submarine pipeline, the local corrosion defect is an important research content. The existing test technology is mainly to polish and thin by a manual grinding wheel to realize the corrosion defect of the steel pipe. Has certain human errors, is not scientific and precise enough, and is inconvenient to operate. To accommodate research needs, the local ablation thinning work requires new test methods to support.
The invention content is as follows:
in view of the above, in order to solve the technical defects of the existing research, the invention provides an electromagnetic fixed type steel pipe local cutting test device. The invention can be applied to the processing of the corrosion defect of the steel pipe in the buckling and crushing test of the submarine pipeline, and the technical scheme is as follows:
an electromagnetic fixed type steel pipe local cutting test method adopts a device comprising a main frame 1, an electromagnetic fixed system, a slide bar system, a motor lifting system and a control console, wherein,
the electromagnetic fixing system includes: a fixing clamp 5, a fixing clamp torsion bar 10 and an electromagnetic generator; the fixing clamp torsion bar 10 comprises a screw cap 11, a screw 12 and a round joint 13, a bolt hole is formed in the main frame 1, the external thread of the screw 12 of the fixing clamp torsion bar 10 is matched with the bolt hole of the main frame 1, the fixing clamp torsion bar 10 is assembled with the main frame 1 through threads, and the fixing clamp 5 is rotatably connected to the lower portion of the screw 12 through the round joint 13; the electromagnetic generator is fixed on the main frame 1.
The motor lifting system comprises: the cutting machine comprises a cutting motor 8, a cutting tool bit 27, a lifting gear 29, a vertical fixing plate 7, a vertical displacement sensor 32, a lifting motor 33 and an arc-shaped fixing plate 37, wherein the cutting motor 8 is fixedly connected with the arc-shaped fixing plate 37; the vertical fixing plate 7 comprises a T-shaped clamping groove 31, a motor supporting plate 34 and a straight tooth groove 36, and a T-shaped clamping pin 28 matched with the T-shaped clamping groove 31 is arranged at the end part of an arc-shaped fixing plate 37; the lifting motor 33 is fixed on the arc-shaped fixing plate 37, and the lifting motor 33 is engaged with the straight tooth groove 36 fixed on the motor supporting plate 34 through the lifting gear 29.
Preferably, the slide bar system comprises: the device comprises a main frame 1, a longitudinal sliding rod 2, a longitudinal sliding end column 3-1, a transverse sliding end column 3-2, a transverse sliding rod 4, a tooth groove 20, a moving gear 22, a fixing piece 23, a longitudinal moving motor 24-1, a transverse moving motor 24-2, a longitudinal sliding block 25-1, a transverse sliding block 25-2, a transverse displacement sensor and a longitudinal displacement sensor, wherein the longitudinal sliding rod 2 is arranged in parallel with the main frame 1; the sliding end columns 3-1 and 3-2 respectively penetrate through the longitudinal sliding rod 2 and the transverse sliding rod 4 and can slide; the transverse sliding rod 4 is arranged perpendicular to the longitudinal sliding rod 2 and is assembled on the longitudinal sliding rod 2 by means of a longitudinal sliding end column 3-1; tooth sockets 20 are respectively arranged on the longitudinal slide bar 2 and the transverse slide bar 4; the longitudinal moving motor 24-1 is connected with the longitudinal sliding end post 3-1 through a longitudinal sliding block 25-1, and the transverse moving motor 24-2 is connected with the transverse sliding end post 3-2 through a transverse sliding block 25-2; a displacement sensor 46 is arranged on each of the two sliding blocks; the longitudinal moving motor 24-1 and the lateral moving motor 24-2 are engaged with the corresponding tooth grooves 20 through the moving gear 22, respectively.
Preferably, an arc-shaped gasket 14 is attached to the lower surface of the fixing clip 5.
Preferably, a rubber gasket 15 is provided on the bottom surface of the main frame 1 at the position where the electromagnetic fixing system is installed.
Preferably, the device further comprises a longitudinal support bar 21 and a longitudinal support bar 45, wherein the longitudinal support bar 21 is used for connecting and fixing the transverse sliding end posts 3-2, and the transverse support bar 45 is used for connecting and fixing each longitudinal sliding end post 3-1.
The invention has the following advantages:
the electromagnetic fixing system is matched with the fixing clamp to firmly fix the device, so that the operation is simple and convenient;
the cutting area and the depth are preset in advance, so that human errors can be reduced, and the method is safe and reliable.
Description of the drawings:
in order to better illustrate the solution according to the invention, the following detailed description of the figures is given for the description of the device in which:
FIG. 1 is a schematic overall structure diagram of an electromagnetic fixed steel pipe local cutting test method according to the present invention;
FIG. 2 is a schematic structural view of an electromagnetic fastening system of the present invention;
FIG. 3 is a schematic structural view of a sliding bar system according to the present invention;
FIG. 4 is a cross-sectional view of a slider of the present invention;
FIG. 5 is a schematic structural view of a motor lift system of the present invention;
FIG. 6 is a schematic view of a console according to the present invention;
the reference numbers in the figures illustrate: 1-a main frame; 2-longitudinal slide bar; 3-1-longitudinally sliding end posts; 3-2-sliding end posts laterally; 4-a transverse slide bar; 5-fixing the clamp; 6-an electromagnetic generator; 7-vertical fixing plate; 8-cutting the motor; 9-a protective sleeve; 10-fixation clamp torsion bar; 11-screw cap; 12-a screw; 13-round joint; 14-arc shaped gasket; 15-rubber gasket; 16-iron cylinder; 17-a coil; 18-a top cover; 19-a protective shell; 20-gullet; 21-longitudinal support bar; 22-moving gear; 23-a fixing member; 24-1-a longitudinal movement motor; 24-2-a lateral movement motor; 25-1-longitudinal slide; 25-2-transverse slide block; 26-rubber gasket; 27-a cutting insert; 28-T type clamping feet; 29-lifting gear; 30-lower sealing plate; 31-T type card slot; 32-a displacement sensor; 33-a lifting motor; 34-a motor support plate; 35-an upper sealing plate; 36-a straight gullet; 37-arc-shaped fixing plates; 38-an electromagnetic fixed switch; 39-a keyboard; 40-a console; 41-manual lifting switch; 42-a manual movement switch; 43-a display screen; 44-fixed diagonal rods; 45-transverse support bars; 46-displacement sensor.
The specific implementation mode is as follows:
in order to more clearly illustrate the present invention, the technical solution will be described in more detail and fully with reference to the accompanying drawings.
The device comprises an electromagnetic fixing system, a sliding rod system, a motor lifting system and a control console.
The electromagnetic fixing system includes: the fixing clamp comprises a fixing clamp 5, a fixing clamp torsion bar 10 (comprising a screw cap 11, a screw 12 and a round joint 13), an arc gasket 14, a rubber gasket 15 and an electromagnetic generator (comprising an iron cylinder 16, a coil 17, a top cover 18 and a protective shell 19). The screw 12 is assembled with the main frame 1 through threads; the round joint 13 is assembled with the fixing clamp 5, so that large-angle rotation can be realized; the arc gasket 14 is tightly attached to the fixing clamp 5; the coil 17 is arranged around the iron cylinder 16 and is surrounded by a top cover 18 and a protective shell 19; the rubber gasket 15 is tightly attached to the bottom surface of the main frame 1.
The slider bar system includes: the device comprises a main frame 1, a longitudinal sliding rod 2, a longitudinal sliding end column 3-1, a transverse sliding end column 3-2, a transverse sliding rod 4, a protective sleeve 9, a tooth groove 20, a longitudinal supporting rod 21, a moving gear 22, a fixing piece 23, a longitudinal moving motor 24-1, a transverse moving motor 24-2, a longitudinal sliding block 25-1, a transverse sliding block 25-2, a rubber pad 26, a transverse supporting rod 45 and a displacement sensor 46. The longitudinal slide bar 2 is arranged in parallel with the main frame 1; the sliding end columns 3-1 and 3-2 respectively penetrate through the longitudinal sliding rod 2 and the transverse sliding rod 4 and can slide; the transverse sliding rod 4 is arranged perpendicular to the longitudinal sliding rod 2 and is assembled on the longitudinal sliding rod 2 by means of a longitudinal sliding end column 3-1; the longitudinal support rod 21 and the transverse support rod 45 are connected and used for fixing the transverse sliding end post 3-2; the tooth grooves 20 are arranged on the longitudinal sliding rods 2 and the transverse sliding rods 4, and the moving gear 22 is meshed with the tooth grooves; the fixed part 23 fixes the moving motors 24-1 and 24-2 on the longitudinal slide block 25-1 and the transverse slide block 25-2 respectively; the longitudinal sliding block 25-1 is connected with the longitudinal sliding end column 3-1; the transverse sliding block 25-2 is connected with the transverse sliding end column 3-2; the two sliding blocks have the same structure, the middle part is hollow, and the lower part is provided with a displacement sensor 46; rubber pads 26 are passed through the lateral slide bars 4 to prevent excessive displacement of the lateral slide end posts 3-2.
The motor lifting system comprises: the cutting machine comprises a cutting motor 8, a cutting tool bit 27, a T-shaped clamping pin 28, a lifting gear 29, a vertical fixing plate 7 (comprising a lower sealing plate 30, a T-shaped clamping groove 31, a motor supporting plate 34, an upper sealing plate 35 and a straight tooth groove 36), a displacement sensor 32, a lifting motor 33 and an arc-shaped fixing plate 37. The cutting motor 8 is welded with the arc-shaped fixing plate 37; the lifting gear 29 is meshed with the straight tooth groove 36; the T-shaped clamping pin 28 is matched with the T-shaped clamping groove 31, and the T-shaped clamping groove 31 is sealed by the lower sealing plate 30 and the upper sealing plate 35; the elevating motor 33 is fixed on the arc-shaped fixing plate 37.
The console includes: electromagnetic fixed switch 38, keyboard 39, console 40, manual lift switch 41, manual travel switch 42, display screen 43. The console is a small computer, can be programmed to operate automatically, and can also be manually operated through a switch and a button.
Fig. 1 is a schematic structural diagram of an electromagnetic fixed steel pipe partial cutting technical scheme provided by the present invention. In the preparation working stage, the equipment is placed on the steel pipe, the electromagnetic fixing switch 38 is turned on after the position is adjusted, the electromagnetic generator 6 is adsorbed on the steel pipe, and the fixing clamp 5 is pushed to be tightly attached to the outer wall of the steel pipe through the fixing clamp torsion bar 10; the fixed inclined rod 44 and the vertical fixed plate 7 are used for fixing the cutting motor 8, and the cutting motor can move along the longitudinal sliding rod 2 and the transverse sliding rod 4 to realize local area cutting; the protective jacket 9 prevents excessive displacement of the longitudinally sliding end post 3-1.
Fig. 2 is a schematic structural diagram of an electromagnetic fixing system according to the present invention. The coil 17 is spirally wound on the iron cylinder 16, and can generate a magnetic field after being electrified, so that the coil is adsorbed on the steel pipe; the top cover 18 and the protective shell 19 isolate the coil 17 and play a role in protection; the rubber gasket 15 prevents the device from being in hard contact with the steel pipe, so that local deformation is avoided, and meanwhile, the friction force is increased, so that the electromagnetic adsorption is more stable; the screw cap 11, the screw 12 and the round joint 13 are integrated to form a fixing clamp torsion bar 10, and the fixing clamp 5 can rotate around the round joint 13 to be convenient for being attached to a steel pipe; the fixing clamp 5 has a large radian and a radius of 30cm, is suitable for the lamination of various steel pipes, and the radius range of the corresponding steel pipe is 15-30 cm; wherein, arc gasket 14 is the rubber gasket, guarantees with steel pipe soft contact, increases frictional force and stability.
Fig. 3 and 4 are a schematic structural diagram and a cross-sectional view of a slider of a sliding rod system according to the present invention. Tooth grooves 20 are uniformly arranged in the middle area of the longitudinal sliding rod 2 and the transverse sliding rod 4, and moving motors 24-1 and 24-2 are matched with moving gears 22 which are meshed with the tooth grooves 20; wherein, the moving motors 24-1 and 24-2 are matched with the longitudinal slide block 25-1 and the transverse slide block 25-2, and the position of the slide blocks is monitored by the displacement sensor 46, so that the movement of the vertical fixing plate 7 is controlled, and the horizontal displacement of the cutting motor 8 is controlled; the rubber grommet 26 prevents the lateral sliding end post 3-2 from being excessively displaced. In the sectional view of the slider, the longitudinal slider 25-1 is shown in a hollow structure which can pass through the longitudinal support bar 21, and a fixed displacement sensor 46 is provided at the lower part thereof for monitoring the displacement of the slider, and the slider 25-1 and the slider 25-2 have the same structure.
Fig. 5 is a schematic structural diagram of a motor lifting system according to the present invention. The cutting motor 8 is connected with the arc-shaped fixing plate 37, and the cutting motor 8 can move up and down along the T-shaped clamping groove 31 by means of the T-shaped clamping pin 28 and the T-shaped clamping groove 31 on the motor supporting plate 34; the lifting motor 33 is fixed on the arc-shaped fixing plate 37, and the lifting gear 29 is meshed with the straight tooth groove 36, so that the lifting of the cutting motor 8 is controlled; the spiral tooth grooves of the cutter head 27 are cut, so that the local cutting and thinning of the steel pipe are facilitated; the displacement sensor 32 monitors the position of the lifting motor 33, so that the cutting motor 8 is monitored; the upper and lower closure plates 35, 30 ensure that the effective area of movement of the T-tag 28 is within the T-tag slot.
Fig. 6 is a schematic structural diagram of a console provided in the present invention. The control console 40 can realize automatic control of the cutting motor 8; the keyboard 39 is used for parameter setting and control of the console in the test; the electromagnetic fixed switch 38 can realize the control of the electromagnetic generator 6; the manual movement switch 42 can realize the movement of the manual control cutting motor 8; the manual lifting switch 41 can realize the lifting control of the cutting motor 8; the display screen 43 can display position coordinate information of the cutting motor 8, a cutting depth, a simulated cutting area, and the like.
Claims (5)
1. An electromagnetic fixed type steel pipe local cutting test device comprises a main frame (1), an electromagnetic fixed system, a slide bar system, a motor lifting system with a cutting motor (8) and a cutting tool bit (27) and a control console, wherein the slide bar system is used for realizing the horizontal movement and displacement monitoring of the cutting motor (8); the motor lifting system is used for realizing the lifting and vertical displacement monitoring of the cutting motor (8) and is characterized in that,
the electromagnetic fixing system includes: a fixing clamp (5), a fixing clamp torsion bar (10) and an electromagnetic generator; the fixing clamp torsion bar (10) comprises a screw cap (11), a screw (12) and a round joint (13), a bolt hole is formed in the main frame (1), the external thread of the screw (12) of the fixing clamp torsion bar (10) is matched with the bolt hole of the main frame (1), the fixing clamp torsion bar (10) is assembled with the main frame (1) through threads, and the fixing clamp (5) is rotatably connected to the lower portion of the screw (12) through the round joint (13); the electromagnetic generator is fixed on the main frame (1).
The motor lifting system comprises: the cutting machine comprises a cutting motor (8), a cutting tool bit (27), a lifting gear (29), a vertical fixing plate (7), a vertical displacement sensor (32), a lifting motor (33) and an arc-shaped fixing plate (37), wherein the cutting motor (8) is fixedly connected with the arc-shaped fixing plate (37); the vertical fixing plate (7) comprises a T-shaped clamping groove (31), a motor supporting plate (34) and a straight tooth groove (36), and a T-shaped clamping pin (28) matched with the T-shaped clamping groove (31) is arranged at the end part of the arc-shaped fixing plate (37); the lifting motor (33) is fixed on the arc-shaped fixing plate (37), and the lifting motor (33) is meshed with a straight tooth groove (36) fixed on the motor supporting plate (34) through a lifting gear (29).
2. The test device of claim 1, wherein the slide bar system comprises: the device comprises a main frame (1), a longitudinal sliding rod (2), a longitudinal sliding end column (3-1), a transverse sliding end column (3-2), a transverse sliding rod (4), a tooth groove (20), a moving gear (22), a fixing piece (23), a longitudinal moving motor (24-1), a transverse moving motor (24-2), a longitudinal sliding block (25-1), a transverse sliding block (25-2), a transverse displacement sensor and a longitudinal displacement sensor, wherein the longitudinal sliding rod (2) is arranged in parallel with the main frame (1); the sliding end columns (3-1) and (3-2) respectively penetrate through the longitudinal sliding rod (2) and the transverse sliding rod (4) and can slide; the transverse sliding rod (4) is arranged perpendicular to the longitudinal sliding rod (2) and is assembled on the longitudinal sliding rod (2) by means of a longitudinal sliding end column (3-1); tooth grooves (20) are uniformly distributed on the longitudinal sliding rod (2) and the transverse sliding rod (4); the longitudinal moving motor (24-1) is connected with the longitudinal sliding end post (3-1) through a longitudinal sliding block (25-1), and the transverse moving motor (24-2) is connected with the transverse sliding end post (3-2) through a transverse sliding block (25-2); a displacement sensor (46) is arranged on each of the two sliding blocks; the longitudinal moving motor (24-1) and the transverse moving motor (24-2) are respectively meshed with the corresponding tooth grooves (20) through the moving gear (22).
3. Test device according to claim 1, characterized in that an arc-shaped shim (14) is applied to the lower surface of the retaining clip (5).
4. Testing device according to claim 1, characterized in that a rubber gasket (15) is provided on the bottom surface of the main frame (1) where the electromagnetic fixing system is mounted.
5. Test rig according to claim 1, characterized in that the rig further comprises a longitudinal support bar (21) and a longitudinal support bar (45), the longitudinal support bar (21) being adapted to connect and secure the transverse sliding end posts (3-2) and the transverse support bar (45) being adapted to connect and secure the respective longitudinal sliding end posts (3-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110083734.0A CN112881277B (en) | 2021-01-21 | 2021-01-21 | Electromagnetic fixed type steel pipe local cutting test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110083734.0A CN112881277B (en) | 2021-01-21 | 2021-01-21 | Electromagnetic fixed type steel pipe local cutting test device |
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| Publication Number | Publication Date |
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| CN112881277A true CN112881277A (en) | 2021-06-01 |
| CN112881277B CN112881277B (en) | 2021-12-31 |
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Citations (6)
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|---|---|---|---|---|
| KR20150092461A (en) * | 2014-02-05 | 2015-08-13 | 오수정 | Sample tube cutting machine for soil samples |
| CN105742942A (en) * | 2016-04-29 | 2016-07-06 | 国网山东省电力公司汶上县供电公司 | Portable cutting apparatus and method for cable sheath |
| CN108284247A (en) * | 2018-01-17 | 2018-07-17 | 郑东亮 | One kind being convenient for fixed steel pipe cutting device |
| CN108788283A (en) * | 2018-07-02 | 2018-11-13 | 南京海晨霞工程科技有限公司 | A kind of steel pipe cutting device that bridge construction stability is good |
| CN210232423U (en) * | 2019-06-14 | 2020-04-03 | 常州市海杰工具有限公司 | Positioning device for metal cutting tool |
| CN212321220U (en) * | 2020-05-08 | 2021-01-08 | 中国科学院金属研究所 | Quantitative circumferential scratching device for tubular sample |
-
2021
- 2021-01-21 CN CN202110083734.0A patent/CN112881277B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150092461A (en) * | 2014-02-05 | 2015-08-13 | 오수정 | Sample tube cutting machine for soil samples |
| CN105742942A (en) * | 2016-04-29 | 2016-07-06 | 国网山东省电力公司汶上县供电公司 | Portable cutting apparatus and method for cable sheath |
| CN108284247A (en) * | 2018-01-17 | 2018-07-17 | 郑东亮 | One kind being convenient for fixed steel pipe cutting device |
| CN108788283A (en) * | 2018-07-02 | 2018-11-13 | 南京海晨霞工程科技有限公司 | A kind of steel pipe cutting device that bridge construction stability is good |
| CN210232423U (en) * | 2019-06-14 | 2020-04-03 | 常州市海杰工具有限公司 | Positioning device for metal cutting tool |
| CN212321220U (en) * | 2020-05-08 | 2021-01-08 | 中国科学院金属研究所 | Quantitative circumferential scratching device for tubular sample |
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| CN112881277B (en) | 2021-12-31 |
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