CN106290009B - A kind of radial buckling test research device of spiral wound steel wire - Google Patents
A kind of radial buckling test research device of spiral wound steel wire Download PDFInfo
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- CN106290009B CN106290009B CN201610881731.0A CN201610881731A CN106290009B CN 106290009 B CN106290009 B CN 106290009B CN 201610881731 A CN201610881731 A CN 201610881731A CN 106290009 B CN106290009 B CN 106290009B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/26—Investigating twisting or coiling properties
Abstract
The invention discloses a kind of radial buckling test research devices of spiral wound steel wire, including two cylinder support frames, the cylinder on cylinder support frame, actuator and the secondary station for keeping the outbound course of actuator coaxial with cylinder, one end of cylinder is equipped with multiple groove Is, the other end of cylinder is equipped with groove II corresponding with groove I, each parallel to the axis of cylinder, research device further includes star-like frame I and star-like frame II for groove I and groove II.Steel wire grip slide of the invention can be locked in suitable position according to different drum diameters, and threaded hole of steel is suitble to lock the steel wire of various cross sectional shapes (round or rectangle)；Cylinder both ends are provided with groove, ensure that the sliding space of steel wire grip slide, to keep whole spiral wire tangent with cylinder in non-load phase, it is ensured that the accuracy of experiment；It is pushed by actuator, star-like frame II can be slided along groove II and axis, it is ensured that radial buckling occurs in groove II length range inside spin steel wire.
Description
Technical field
The present invention relates to test research device, the radial buckling experiment of specifically a kind of spiral wound steel wire is ground
Study carefully device.
Background technique
Spiral winding structure is widely used in industry, such as sea cable, umbilical cables and the flexible duct in ocean engineering
Deng and civil engineering in wirerope and steel strand wires.Sea cable, which is mainly responsible for, provides electric energy, umbilical cables master for seabed production equipment
Correlation functions, the flexible ducts such as electric power between water floating body and subsea equipment, signal transmission is provided to be mainly responsible between equipment
Oil-gas transportation.Wirerope is mainly used in crane as traction equipment, and steel strand wires are typically used as holdfast in earthwork engineering.
The common trait of above structure is that outer layer has the spiral wound steel wire armouring for promoting stretch resistance, which can guarantee to stretch
The flexibility of structure is improved while ability.But in special circumstances, the work of the axially compressed load of spiral winding armor
With steel wire is easy to happen the Buckling modes of two kinds of forms at this time: radial buckling and lateral buckling.Radial camptodactylia armouring wire edge
Radially projecting, shape is similar " birdcage ", therefore also referred to as " birdcage phenomenon "；Lateral buckling refers to that armouring wire is laterally sent out along periphery
Raw offset slide torsional deformation.At present for the buckling of both forms mainly pass through theoretical, numerical value and three kinds of methods of experiment into
Row research.Compared to remaining two kinds of research method, the result that experimental study obtains has more practical directive significance.In order to comprehensive
Ground is furtherd investigate by the buckling failure mode of spiral wound steel wire, it is necessary to which a single and more spiral wound steel wire is bent
Bent mechanism carries out experimental study, and this patent fails mainly for radial buckling carries out the design of experimental provision.
Summary of the invention
According to technical problem set forth above, a kind of radial buckling experimental study dress of spiral wound steel wire is provided
It sets.Whether the wirerope in ocean engineering flexible pipe cable or civil engineering, structure type and geometric dimension have obviously
Difference.It is spiral wound steel wire in view of apparatus of the present invention are mainly used for experimental subjects, therefore, by steel wire winding internal component
It is equivalent to cylindrical core.Usually a certain section of umbilical in Practical Project, wirerope or steel strand wires by compression load, therefore, experiment
Device can a certain specific length spiral wound steel wire of simulated implementation internal cylindrical radial constraint under be compressed axially behavior.Together
When, experimental provision it can be considered that different-diameter, different spiral winding angle and different length application operating condition, above-mentioned factor pair
The buckling of spiral wound steel wire significantly affects.Moreover, according to literature survey, not yet find at present system to spiral
The experimental provision that steel wire radial direction buckling is studied.According to the studies above target, designed radial direction buckling experiment dress
Setting should include pressure driving device and guarantee steel wire not along the restraint device of cylindrical core center movement.In addition to this, it tested
Journey needs to configure measuring device, such as foil gauge and pressure sensor are to extract steel wire deformation process relevant parameter and spiral steel
The reaction force of silk.Radial buckling experiment flow is usually in accordance with following steps: sampling, fixation, pieces of cloth, load, measurement and rear place
Manage mode expansion.Experiment will formulate corresponding testing scheme before starting and choose to spiral wire, then by spiral shell to be tested
Fixation with steel wire is revolved in the both ends of cylinder (effect is similar to cylindrical core), and draws the steel wire position line, steel wire after being used for and testing
Position compares.The arrangement of foil gauge and pressure sensor is carried out in test position according to requirement of experiment, and is coupled with
Data acquisition equipment.Ensure the errorless rear start-up loading equipment of aforesaid operations, while acquiring related data in real time.Finally, to gained
Data are analyzed and processed and form perfect laboratory report.The technological means that the present invention uses is as follows:
A kind of radial buckling test research device of spiral wound steel wire, which is characterized in that including two cylinder branch
Support, the cylinder on the cylinder support frame, actuator and keep the outbound course of the actuator and the cylinder coaxial
Secondary station,
One end of the cylinder be equipped with it is multiple using the axis of the cylinder as the equally distributed groove I of axis, the cylinder
The other end is equipped with groove II corresponding with the groove I, the groove I and the groove II each parallel to the axis of the cylinder
Line,
The research device further includes star-like frame I and star-like frame II,
The strut of the star-like frame I matches with the groove I and is fixedly connected by the groove I with the cylinder,
The center of the star-like frame I is fixedly connected with an axis, and the axis is fixedly connected by the star-like frame I with the cylinder, described
The strut of star-like frame I is equipped with steel wire and clamps slider I, and the steel wire clamping slider I, which has to slide with the strut of the star-like frame I, to be connected
The connecting hole I connect, the steel wire clamp slider I and are equipped with bolt I, the bolt I pass through the hole wall of the connecting hole I with it is described
The strut of star-like frame I connects, and the steel wire clamps the threaded hole of steel I that connection steel wire is additionally provided in slider I, and the threaded hole of steel I is in institute
State the cross section of cylinder orthographic projection in the plane and the cross section it is circumscribed, the steel wire clamps slider I and is equipped with bolt
II, the bolt II passes through the hole wall of the threaded hole of steel I for the fixation with steel wire in the threaded hole of steel I.
The strut of the star-like frame II and the groove II match and are connected by the groove II and cylinder sliding
It connects, the center of the star-like frame II and axis connection and can slide along the axis, the strut of the star-like frame II is equipped with steel wire clamping
Sliding block II, the steel wire grip slide II have the connecting hole II being slidably connected with the strut of the star-like frame II, the steel wire
Grip slide II is equipped with bolt III, and the strut of hole wall and the star-like frame II that the bolt III passes through the connecting hole II connects
It connects, the threaded hole of steel II of connection steel wire is additionally provided on the steel wire grip slide II, the threaded hole of steel II is where the cross section
Orthographic projection and the cross section in plane is circumscribed, and the steel wire grip slide II is equipped with bolt IV, and the bolt IV passes through
The hole wall of the threaded hole of steel IV by the fixation with steel wire in the threaded hole of steel IV,
The output end of the actuator is set on the auxiliary sleeve by assisting sleeve to be fixedly connected with the star-like frame II
The hole for thering is the axis to pass through.
The cross section of the groove I and the groove II is in reversed convex type.
The cylinder is externally provided with the cylindrical sleeve coaxial, isometric with the cylinder, the both ends of the cylindrical sleeve be respectively equipped with
The groove I and the corresponding groove III of the groove II and groove IV.
The invention has the following advantages that
(1) outer diameter of cylinder and length can need to be configured according to research, by the position for adjusting the sliding block on star-like frame
Investigation and comparison can be carried out to the spiral wire radial direction buckling of various outer diameter and winding angle by setting.
(2) single, two and more steel wires radial bucklings experiments can be achieved in the star-like frame in the present apparatus, and can be to it
As a result it compares and analyzes.
(3) the present apparatus supports the major part of rack supporting device by two cylinders, and the application of cylinder support frame ensure that
What is loaded is convenient.
(4) the steel wire grip slide on the star-like frame of can be locked in suitable position, and steel according to different drum diameters
Wire hole is suitble to lock the steel wire of various cross sectional shapes (round or rectangle).
(5) cylinder both ends are provided with groove, ensure that the sliding space of steel wire grip slide, to make whole spiral steel
Silk is tangent with cylinder in non-load phase, it is ensured that the accuracy of experiment.
(6) is pushed by actuator, and star-like frame II can be slided along groove II and axis, it is ensured that in groove II length range
Radial buckling occurs for inside spin steel wire.
(7) the device can be covered in except spiral wire by the way that the cylindrical sleeve coaxial, isometric with cylinder is arranged, so as to
Lateral buckling is studied in realization.The present invention can be widely popularized in fields such as test research devices based on the above reasons.
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a kind of sky of the radial buckling test research device of spiral wound steel wire in the embodiment of the present invention 1
Between structural schematic diagram.
Fig. 2 is a kind of master of the radial buckling test research device of spiral wound steel wire in the embodiment of the present invention 1
View.
Fig. 3 is the main view of cylinder in the embodiment of the present invention 1.
Fig. 4 is the side view of cylinder in the embodiment of the present invention 1.
Fig. 5 is the space structure schematic diagram of 1 culminant star type frame I (star-like frame II) of the embodiment of the present invention.
Fig. 6 is the space structure schematic diagram that steel wire clamps slider I (steel wire grip slide II) in the embodiment of the present invention 1.
Fig. 7 is a kind of sky of the radial buckling test research device of spiral wound steel wire in the embodiment of the present invention 2
Between structural schematic diagram.
Fig. 8 is the main view of cylindrical sleeve in the embodiment of the present invention 2.
Fig. 9 is the side view of cylindrical sleeve in the embodiment of the present invention 2.
Specific embodiment
Embodiment 1
As shown in figs 1 to 6, the radial buckling test research device of a kind of spiral wound steel wire, including two cylinders
Support frame 1, the cylinder 2 on the cylinder support frame 1, actuator 3 and the outbound course and the circle that make the actuator 3
2 coaxial secondary stations 4 of cylinder,
One end of the cylinder 2 is equipped with multiple using the axis of the cylinder 2 as the equally distributed groove I 5 of axis, the cylinder
2 other end is equipped with groove II 6 corresponding with the groove I 5, and the groove I 5 and the groove II 6 are each parallel to described
The axis of cylinder 2,
The research device further includes star-like frame I 7 and star-like frame II 8,
The strut of the star-like frame I 7 and the groove I 5 match and by the groove Is 5 and the fixed company of the cylinder 2
It connecing, one axis of center of the star-like frame I 7 is fixedly connected, and the axis is fixedly connected by the star-like frame I 7 with the cylinder 2,
The strut of the star-like frame I 7 is equipped with steel wire and clamps slider I 9, and the steel wire clamps slider I 9 with the branch with the star-like frame I 7
The connecting hole I 10 that bar is slidably connected, the steel wire clamp slider I 9 and are equipped with bolt I 11, and the bolt I 11 passes through the connection
The hole wall in hole I 10 is connect with the strut of the star-like frame I 7, and the steel wire clamps the steel that connection steel wire 12 is additionally provided in slider I 9
Wire hole I 13, the threaded hole of steel I 13 the cross section of the cylinder 2 orthographic projection in the plane and the cross section it is circumscribed, institute
It states steel wire and clamps slider I 9 and be equipped with bolt II 14, the bolt II 14 passes through the hole wall of the threaded hole of steel I 13 for the steel wire
Steel wire 12 in hole I 13 is fixed,
The strut of the star-like frame II 8 and the groove II 6 match and are slided by the groove II 6 with the cylinder 2
It moves connection, the center of the star-like frame II 8 and the axis connection and can be slided along the axis, the strut of the star-like frame II 8 is set
There is steel wire grip slide II 15, the steel wire grip slide II 15 has the company being slidably connected with the strut of the star-like frame II 8
Hole II 16 is connect, the steel wire grip slide II 15 is equipped with bolt III 17, and the bolt III 17 passes through the connecting hole II 16
Hole wall is connect with the strut of the star-like frame II 8, and the threaded hole of steel of connection steel wire 12 is additionally provided on the steel wire grip slide II 15
II 18, the threaded hole of steel II 18 the cross section orthographic projection in the plane and the cross section it is circumscribed, the wire clip
Tight sliding block II 15 is equipped with bolt IV 19, and the bolt IV 19 passes through the hole wall of the threaded hole of steel IV 18 for the threaded hole of steel IV 18
Interior steel wire 12 is fixed,
The output end of the actuator 3 is by assisting sleeve 20 to be fixedly connected with the star-like frame II 8, the auxiliary sleeve
20 are equipped with the hole that the axis passes through.
The cross section of the groove I 5 and the groove II 6 is in reversed convex type.
Embodiment 2
As shown in figs. 7 to 9, the radial buckling test research device of a kind of spiral wound steel wire, with embodiment 1
The distinguishing characteristics of the radial buckling test research device of disclosed a kind of spiral wound steel wire are as follows: the cylinder 2 is externally provided with
Coaxial, the isometric cylindrical sleeve 21 with the cylinder 2, the both ends of the cylindrical sleeve 21 are respectively equipped with and the groove I 5 and described recessed
The corresponding groove III 22 of slot II 6 and groove IV 23.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (3)
1. a kind of radial buckling test research device of spiral wound steel wire, which is characterized in that supported including two cylinders
Frame, the cylinder on the cylinder support frame, actuator and keep the outbound course of the actuator and the cylinder coaxial
Secondary station,
One end of the cylinder be equipped with it is multiple using the axis of the cylinder as the equally distributed groove I of axis, the cylinder it is another
The axis equipped with groove II corresponding with the groove I, the groove I and the groove II each parallel to the cylinder is held,
The research device further includes star-like frame I and star-like frame II,
The strut of the star-like frame I matches with the groove I and is fixedly connected by the groove I with the cylinder, described
The center of star-like frame I is fixedly connected with an axis, and the axis is fixedly connected by the star-like frame I with the cylinder, described star-like
The strut of frame I is equipped with steel wire and clamps slider I, and it is sliding by the strut of connecting hole I and the star-like frame I that the steel wire clamps slider I
Dynamic connection, the steel wire clamp slider I and are equipped with bolt I, the bolt I pass through the hole wall of the connecting hole I with it is described star-like
The strut of frame I connects, and the steel wire clamps the threaded hole of steel I that connection steel wire is additionally provided in slider I, and the threaded hole of steel I is in the circle
Cross section institute's orthographic projection in the plane of cylinder and the cross section are circumscribed, and the steel wire clamping slider I is equipped with bolt II, institute
Bolt II is stated across the hole wall of the threaded hole of steel I by the fixation with steel wire in the threaded hole of steel I,
The strut of the star-like frame II matches with the groove II and is slidably connected by the groove II and the cylinder, institute
It states the center of star-like frame II and the axis connection and can slide along the axis, the strut of the star-like frame II is equipped with steel wire and clamps cunning
Block II, the steel wire grip slide II are slidably connected by connecting hole II and the strut of the star-like frame II, and the steel wire clamps
Sliding block II is equipped with bolt III, and the hole wall that the bolt III passes through the connecting hole II is connect with the strut of the star-like frame II,
The threaded hole of steel II of connection steel wire is additionally provided on the steel wire grip slide II, the threaded hole of steel II is in plane where the cross section
On orthographic projection and the cross section it is circumscribed, the steel wire grip slide II is equipped with bolt IV, and the bolt IV passes through described
The hole wall of threaded hole of steel IV by the fixation with steel wire in the threaded hole of steel IV,
For the output end of the actuator by assisting sleeve to be fixedly connected with the star-like frame II, the auxiliary sleeve is equipped with institute
State the hole that axis passes through.
2. a kind of radial buckling test research device of spiral wound steel wire according to claim 1, feature exist
In: the cross section of the groove I and the groove II is in reversed convex type.
3. a kind of radial buckling test research device of spiral wound steel wire according to claim 1 or 2, feature
Be: the cylinder is externally provided with the cylindrical sleeve coaxial, isometric with the cylinder, the both ends of the cylindrical sleeve be respectively equipped with it is described
Groove I and the corresponding groove III of the groove II and groove IV.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610881731.0A CN106290009B (en) | 2016-10-09 | 2016-10-09 | A kind of radial buckling test research device of spiral wound steel wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610881731.0A CN106290009B (en) | 2016-10-09 | 2016-10-09 | A kind of radial buckling test research device of spiral wound steel wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106290009A CN106290009A (en) | 2017-01-04 |
| CN106290009B true CN106290009B (en) | 2019-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610881731.0A Active CN106290009B (en) | 2016-10-09 | 2016-10-09 | A kind of radial buckling test research device of spiral wound steel wire |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110579408B (en) * | 2019-09-16 | 2022-03-08 | 哈尔滨工程大学 | Arbitrary curvature bending and sliding experimental device and testing method for spirally winding armored steel wires of marine flexible pipe cable |
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| US7296480B2 (en) * | 2002-09-18 | 2007-11-20 | Technip France | Method and device for monitoring a flexible pipe |
| CN201130126Y (en) * | 2007-12-18 | 2008-10-08 | 中国电子科技集团公司第二十三研究所 | Helical cable stretching compression force automatic test equipment |
| CN104089810A (en) * | 2014-07-08 | 2014-10-08 | 天津大学 | Device for testing thermal buckling of thin-wall pipeline under different embedding conditions |
| CN204008334U (en) * | 2014-08-04 | 2014-12-10 | 常熟市环境试验设备有限公司 | Optical cable steel wire torsion test unit |
| CN105890972A (en) * | 2014-12-09 | 2016-08-24 | 徐金楼 | Fixture for steel wire rope |
-
2016
- 2016-10-09 CN CN201610881731.0A patent/CN106290009B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7296480B2 (en) * | 2002-09-18 | 2007-11-20 | Technip France | Method and device for monitoring a flexible pipe |
| CN201130126Y (en) * | 2007-12-18 | 2008-10-08 | 中国电子科技集团公司第二十三研究所 | Helical cable stretching compression force automatic test equipment |
| CN104089810A (en) * | 2014-07-08 | 2014-10-08 | 天津大学 | Device for testing thermal buckling of thin-wall pipeline under different embedding conditions |
| CN204008334U (en) * | 2014-08-04 | 2014-12-10 | 常熟市环境试验设备有限公司 | Optical cable steel wire torsion test unit |
| CN105890972A (en) * | 2014-12-09 | 2016-08-24 | 徐金楼 | Fixture for steel wire rope |
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| Title |
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| Niels Højen Østergaard a.On modelling of lateral buckling failure in flexible pipe.《Marine Structures》.2012,全文. |
| Otávio Sertãetc..PREDICTIONS OF ARMOUR WIRE BUCKLING FOR A FLEXIBLE PIPE UNDER.《Proceedings of the 27th International Conference on Offshore Mechanics and Arctic Engineering》.2012,全文. |
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| 深水柔性立管及附件设计的关键力学问题研究;汤明刚;《中国博士学位论文全文数据库基础科学辑》;20160331;全文 |
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