CN106092751A - A kind of high-pressure hose fatigue machine - Google Patents
A kind of high-pressure hose fatigue machine Download PDFInfo
- Publication number
- CN106092751A CN106092751A CN201610465209.4A CN201610465209A CN106092751A CN 106092751 A CN106092751 A CN 106092751A CN 201610465209 A CN201610465209 A CN 201610465209A CN 106092751 A CN106092751 A CN 106092751A
- Authority
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- China
- Prior art keywords
- support
- centering block
- flange
- oil cylinder
- platform
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
-
- 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
- G01N3/02—Details
-
- 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
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
-
- 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
- G01N3/20—Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces
Abstract
nullThe present invention relates to a kind of high-pressure hose fatigue machine，Including support，Support is fixed on ground，It is provided with top work platforms at the top of support，Top work platforms is provided with operation room，Electric winch it is provided with in operation room，It is provided with centering block below the work platforms of top，Centering block is connected with support the first bearing pin,The lower end of centering block is connected by four the second bearing pins four centering block oil cylinders，The lower end of centering block oil cylinder is connected with cylinder support by the 3rd bearing pin，Cylinder support is fixed on the corner of support，It is provided with abutted flange on the top of centering block，Abutted flange docks with the flange of test flexible pipe，It is provided with four platforms oil cylinder in frame bottom，The lower end of platform oil cylinder is connected on support by the 4th bearing pin，The upper end of platform oil cylinder is connected with bottom platform by the 5th bearing pin，Bottom platform is provided with flange，Flange docks with bottom test flexible pipe.The present invention has simple to operate, and work efficiency is high, and range is wide, safe and reliable, and automaticity is high, the advantage consuming hand labor low cost.
Description
Technical field
The present invention relates to a kind of flexible pipe fatigue experimental device, particularly to high-pressure hose fatigue machine.
Background technology
At present, high-pressure hose is widely used, it is especially useful in large-scale engineering machinery, such as loop wheel machine, the hydraulic tube of excavator, dredges
Ship drag head high pressure water pipe, jack-up unit spud leg flush pipe etc..During high-pressure hose work, 2 points are often fixed at pipe two ends,
When 2 distances are big, during use, meeting tension stretch and tendency power effect, in order to ensure fatigue strength and the service life of flexible pipe, need
To test before dispatching from the factory its fatigue strength and life-span.
Existing technology has problems:
1, current domestic testing machine has pulling-out force testing machine, siphon pressure testing machine etc., can only the tension of single test pipe strong
Degree.Cannot simulate simultaneously by temperature, stretch, the multiple force status such as bending, it is impossible to reach the fatigue of composite measurement high-pressure hose
Intensity and life-span.
2, testing machine is generally Horizontal small assay device, can only meet the test length of 1-6 rice, it is impossible to realize in 12 meters
Fatigue test under the operating mode of the flexural oscillations of the high-pressure hose of length.
3, current testing machine is generally fixed structure, when pipe stress docking secure component with high-pressure hose two ends
Time, secure component is unable to reach constant bed knife, and the result of test is inaccurate, it is impossible to simulate actually used operating mode.
Summary of the invention
Present invention aim to address the weak point of above-mentioned technical problem, it is provided that a kind of high-pressure hose fatigue machine,
Simulation various working under to high-pressure hose stretching and bending wave situation, meet certain length high-pressure hose at constant fastening force
Under effect, by tendency power and the test requirements document of tensile force.
The purpose of the present invention is achieved through the following technical solutions: a kind of high-pressure hose fatigue machine, including support, institute
State support and be fixed on ground, be provided with top work platforms at the top of described support, described top work platforms is provided with behaviour
Between work, being provided with electric winch in described operation room, be provided with centering block below the work platforms of described top, described centering block is by the
One bearing pin is connected with support, and the lower end of described centering block is connected by four the second bearing pins four centering block oil cylinders, described centering block oil
The lower end of cylinder is connected by the 3rd bearing pin and is connected with cylinder support, and cylinder support is fixed on the corner of support, at described centering block
Top is provided with abutted flange, and abutted flange docks with the flange of test flexible pipe, is provided with four platforms oil cylinder in described frame bottom,
The lower end of described platform oil cylinder is connected on support by the 4th bearing pin, and the 5th bearing pin and the end was passed through in the upper end of described platform oil cylinder
Portion's platform is connected, and is provided with flange in described bottom platform, and flange docks with bottom test flexible pipe, is provided with hydraulic pressure on support 1 side
Pumping plant group and test OPS, hydraulic power unit group provides power for oil cylinder.
Further improvement of the present invention is: be provided with cat ladder on the bracket.
Further improvement of the present invention is: be provided with suspension cable in four sides of described support.
Further improvement of the present invention is: be provided with centering block flange docking platform on the bracket.
The present invention compared with prior art has the advantage that
1, having simple to operate, work efficiency is high, and range is wide, safe and reliable, and automaticity is high, consumes hand labor
Low cost.There is certain economic and practical.
2, testing machine is vertical structure, is made up of truss welding, simple in construction, takes up room little, can long period (the 1-2 month)
Work continuously, support height reaches 18 meters, it is provided that 9-12 rice high-pressure hose is tested.
3, centering block is with centering block bearing pin for a spot wobble under oil cylinder pushing, and maximum left and right luffing reaches 34 degree, error ± 0.5 °
Within, pendulum angle speed is up to 2 °-10 ° per second, it is achieved simulate amplitude of fluctuation big, precision operating mode high, fireballing.
4, centering block structure is embedded, and the abutted flange of flexible pipe is embedded in inside centering block, and centering block bearing pin is positioned at abutted flange
Bottom, when centering block swings, reduces the stroke of centering block oil cylinder.Flexible pipe luffing amount reduces simultaneously, shortens the row of bottom platform oil cylinder
Journey, improves system stability, it is ensured that the service life of oil cylinder.
5, root bottom part platform oil cylinder in bottom 4 uses trapezium structure to connect bottom platform, it is ensured that the stability of bottom platform,
Under the effect of pumping plant group, four root bottom part platform oil cylinders keep bottom platform to provide constant pressure, when high-pressure hose is bending right and left
During swing, bottom platform can be moved when compensating hose bending length change therewith, keeps the constant of pulling force simultaneously.
When 6, using flange to dock with high-pressure hose on testing machine centering block, use counter flange docking, counter flange length
Adjustable, it is ensured that to be positioned at below centering block at maximum deflection during flexible pipe experiment, adjust different length hose test simultaneously, 9-12 can be met
The hose test of rice.
7, testing machine top is provided with electric winch, can easy of rise high-pressure hose, automaticity is high.
8, testing machine is equipped with temperature sensor, uses computerized control system, with color laser printer one, uses meter
Calculation machine software records data record and the system of analysis, flexure operation computer software records flexible pipe medium temperature, soft automatically each time
Pipe internal pressure, tensile force, moment of flexure, the pivot angle of centering block, the number of times of swing, the data such as test period, intelligence degree is high.
Accompanying drawing illustrates:
Fig. 1 is present configuration structural representation；
Fig. 2 is that the B of Fig. 1 is to schematic diagram；
1-support, 2-top work platforms, 3-operation room, 4-electric winch, 5-centering block, 6-1-the first bearing pin, 6-2-second sell
Axle, 6-3-the 3rd bearing pin, 6-4-the 4th bearing pin, 6-5-the 5th bearing pin, 7-centering block oil cylinder, 8-cylinder support, 9-centering block flange pair
Connect platform, 10-platform oil cylinder, 11-bottom platform, 12-cat ladder, 13-suspension cable.
Detailed description of the invention:
In order to deepen the understanding of the present invention, below in conjunction with embodiment and accompanying drawing, the invention will be further described, this enforcement
Example is only used for explaining the present invention, is not intended that limiting the scope of the present invention.
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below will be in the embodiment of the present invention
Technical scheme be clearly and completely described, it is clear that described embodiment be a part of embodiment of the present invention rather than
Whole embodiments.The element described in one embodiment of the invention and feature can with one or more other real
Execute the element shown in mode and feature combines.It should be noted that, for purposes of clarity, explanation eliminates with the present invention without
That close, parts known to persons of ordinary skill in the art and the expression of process and description.Based on the embodiment in the present invention, ability
The every other embodiment that territory those of ordinary skill is obtained on the premise of not paying creative work, broadly falls into the present invention
The scope of protection.
As Fig. 1-2 shows the embodiment of the present invention a kind of high-pressure hose fatigue machine: include support 1, support 1 by
Truss welding forms, and described support 1 is fixed on ground, is provided with top work platforms 2 at the top of described support 1, on described top
Portion's work platforms 2 is provided with operation room 3, is provided with electric winch 4 in described operation room 3, facilitates personnel's folding and unfolding high-pressure hose,
Being provided with centering block 5 below described top work platforms 2, described centering block 5 is connected with support 1 by the first bearing pin 6-1, described centering block 5
Lower end by four second bearing pin 6-2 connect have four centering block oil cylinders 7, the lower end of described centering block oil cylinder 7 pass through the 3rd bearing pin
6-3 connects and is connected with cylinder support 8, and cylinder support 8 is fixed on the corner of support 1, is provided with rendezvous method on the top of described centering block 5
Orchid, abutted flange docks with the flange of test flexible pipe, is provided with four platforms oil cylinder 10, described platform oil bottom described support 1
The lower end of cylinder 10 is connected on support 1 by the 4th bearing pin 6-4, the upper end of described platform oil cylinder 10 by the 5th bearing pin 6-5 with
Bottom platform 11 is connected, and is provided with flange in described bottom platform 11, and flange docks, at described support 1 with bottom test flexible pipe
It is provided with cat ladder 12, facilitates personnel's carrier parts, be provided with suspension cable 13 in four sides of described support 1, it is ensured that the stability of support,
Described support 1 is provided with centering block flange docking platform 9, facilitates personnel to dock flexible pipe, support 1 other be provided with hydraulic power unit group and
Test OPS, hydraulic power unit group provides power for oil cylinder.
Specific works process:
1, high-pressure hose pressurization: high-pressure hose one end seal plug seals, other end hydraulic pamp injects water under high pressure, maximum pressure
Power is up to 70MPa, and after reaching pressure, plug seals.Ensure the internal pressure of high-pressure hose.
2, high-pressure hose one end connecting steel wire ropes, is connected by the steel wire rope of electric winch, electric winch lifting flexible pipe, treats
When flexible pipe upper flanges contacts with centering block upper flange, staff to centering block platform carries out flange docking, simultaneously flange in the bottom with
End flanges docking under flexible pipe.Then untiing steel wire rope, flexible pipe is fixed on testing machine.
3, pumping plant work, top centering block oil cylinder contractile motion under system pressure effect, side the pushing away at oil cylinder of centering block
Start to swing with the centering block bearing pin at middle part for fulcrum under Dong, swing speed variable-angle per second 2 °-10 °, the maximum luffing of centering block
Up to 35 °.It is connected to the high-pressure hose of centering block flange bend right and left under the effect of centering block swing, bottom 4 root bottom part platform
Oil cylinder common contiguous base platform is maintained at constant pressure (maximum pressure is up to 60 tons) along with motion, the fortune of bottom platform simultaneously
The dynamic variation length compensating hose bending.
4, the OPS of testing machine sets a test period (the 1-2 month), computer synchronous recording related data, analyzes
The fatigue strength of flexible pipe and life-span.
The present invention has simple to operate, and work efficiency is high, and range is wide, safe and reliable, and automaticity is high, consumes
Hand labor low cost, has certain economic and practical；Testing machine is vertical structure, is made up of truss welding, and simple in construction accounts for
Little with space, can work continuously by long period (the 1-2 month), support height reaches 18 meters, it is provided that 9-12 rice high-pressure hose tries
Test；Centering block is with centering block bearing pin for a spot wobble under oil cylinder pushing, and maximum left and right luffing reaches 34 degree, within error ± 0.5 °, and pendulum
Dynamic angle rates is up to 2 °-10 ° per second, it is achieved simulate amplitude of fluctuation big, precision operating mode high, fireballing；Centering block structure is
Embedded, the abutted flange of flexible pipe is embedded in inside centering block, and centering block bearing pin is positioned at the bottom of abutted flange, when centering block swings, reduces
The stroke of centering block oil cylinder.Flexible pipe luffing amount reduces simultaneously, shortens the stroke of bottom platform oil cylinder, improves system stability, protects
Demonstrate,prove the service life of oil cylinder；Bottom 4 root bottom part platform oil cylinder uses trapezium structure to connect bottom platform, it is ensured that bottom platform
Stability, under the effect of pumping plant group, four root bottom part platform oil cylinders keep bottom platform to provide constant pressure, when high-pressure hose exists
Bend right and left swing time, bottom platform can be moved when compensating hose bending length change therewith, keeps the constant of pulling force simultaneously；
When using flange to dock with high-pressure hose on testing machine centering block, use counter flange docking, counter flange adjustable length, it is ensured that soft
It is positioned at below centering block at maximum deflection during pipe experiment, adjusts different length hose test simultaneously, the flexible pipe examination of 9-12 rice can be met
Test；Testing machine top is provided with electric winch, can easy of rise high-pressure hose, automaticity is high；Testing machine is equipped with temperature sensing
Device, uses computerized control system, with color laser printer one, uses computer software record data record and analyzes system
System, flexure operation computer software records flexible pipe medium temperature, inside hose pressure, tensile force automatically each time, moment of flexure, centering block
Pivot angle, the number of times of swing, the data such as test period, intelligence degree is high.
Although it is last it is noted that the present invention and advantage thereof have been described in detail above it should be appreciated that not
Beyond can carry out in the case of the spirit and scope of the present invention that are defined by the claims appended hereto various change, replacement and
Conversion.And, the scope of the present invention is not limited only to the concrete reality of the process described by description, equipment, means, method and steps
Execute example.
One of ordinary skilled in the art will readily appreciate that from the disclosure, can use according to the present invention
Perform the function essentially identical to corresponding embodiment described herein or obtain the result essentially identical with it, existing and general
Carry out process, equipment, means, method or step to be developed.Therefore, appended claim is directed in the range of them
Including such process, equipment, means, method or step.
Claims (4)
1. a high-pressure hose fatigue machine, including support (1), it is characterised in that: described support (1) is fixed on ground,
The top of described support (1) is provided with top work platforms (2), is provided with operation room (3) on described top work platforms (2),
It is provided with electric winch (4) in described operation room (3), is provided with centering block (5), described centering block in lower section, described top work platforms (2)
(5) being connected with support (1) by the first bearing pin (6-1), the lower end of described centering block (5) is connected by four the second bearing pins (6-2)
Having four centering block oil cylinders (7), the lower end of described centering block oil cylinder (7) connects cylinder support (8), oil cylinder by the 3rd bearing pin (6-3)
Bearing (8) is fixed on the corner of support (1), is provided with abutted flange, abutted flange and test flexible pipe on the top of described centering block (5)
Flange docking, be provided with four platforms oil cylinder (10) in described support (1) bottom, the lower end of described platform oil cylinder (10) is by the
Four bearing pins (6-4) are connected on support (1), and the 5th bearing pin (6-5) and bottom platform is passed through in the upper end of described platform oil cylinder (10)
(11) being connected, be provided with flange in described bottom platform (11), flange docks with bottom test flexible pipe.
High-pressure hose fatigue machine the most according to claim 1, it is characterised in that: on described support (1), it is provided with cat ladder
(12).
High-pressure hose fatigue machine the most according to claim 1, it is characterised in that: it is provided with in four sides of described support (1)
Suspension cable (13).
High-pressure hose fatigue machine the most according to claim 1, it is characterised in that: on described support (1), it is provided with centering block
Flange docking platform (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610465209.4A CN106092751A (en) | 2016-06-24 | 2016-06-24 | A kind of high-pressure hose fatigue machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610465209.4A CN106092751A (en) | 2016-06-24 | 2016-06-24 | A kind of high-pressure hose fatigue machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106092751A true CN106092751A (en) | 2016-11-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610465209.4A Pending CN106092751A (en) | 2016-06-24 | 2016-06-24 | A kind of high-pressure hose fatigue machine |
Country Status (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113624501A (en) * | 2021-08-13 | 2021-11-09 | 中国船舶重工集团公司第七O三研究所无锡分部 | Gas turbine advances exhaust test bench |
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