CN109612856A - A kind of hydraulic steel pipe detection device - Google Patents
A kind of hydraulic steel pipe detection device Download PDFInfo
- Publication number
- CN109612856A CN109612856A CN201811523460.7A CN201811523460A CN109612856A CN 109612856 A CN109612856 A CN 109612856A CN 201811523460 A CN201811523460 A CN 201811523460A CN 109612856 A CN109612856 A CN 109612856A
- Authority
- CN
- China
- Prior art keywords
- lead screw
- turntable
- driving motor
- steel pipe
- test specimen
- 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.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 18
- 239000010959 steel Substances 0.000 title claims abstract description 18
- 238000001514 detection method Methods 0.000 title claims abstract description 12
- 238000012360 testing method Methods 0.000 claims abstract description 39
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 239000011888 foil Substances 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 abstract description 6
- 238000006073 displacement reaction Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 4
- 239000000523 sample Substances 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 abstract description 2
- 238000005452 bending Methods 0.000 description 6
- 230000005611 electricity Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000003679 aging effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- 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
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
- G01N3/36—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by pneumatic or hydraulic 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
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0005—Repeated or cyclic
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0021—Torsional
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0023—Bending
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0073—Fatigue
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0274—Tubular or ring-shaped specimens
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0682—Spatial dimension, e.g. length, area, angle
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A kind of hydraulic steel pipe detection device, is related to hydraulic steel pipe detection field.Testing machine, it is rotated including servo motor and drives eccentric turntable rotation, turntable center displacement is adjusted using the two motor cooperations of bias-adjusted driving motor and lead screw driving motor, control the strain that the biasing displacement of test specimen generates, it is possible to reduce due to the factors bring measurement error such as test specimen size is different, material is uneven.Dynamic torque and speed probe are utilized simultaneously, the change in torque of entire transmission system during implementation record and monitoring test, therefore the either influence of spherical center bearing or transmission shaft, when torque value is more than alarm threshold value, equipment will be automatically stopped, and it is uncertain to greatly reduce test macro bring in this way.
Description
Technical field
The present invention relates to hydraulic steel pipe detection field, in particular to a kind of hydraulic steel pipe detection device.
Background technique
No matter in aerospace or nuclear power engineering, the bending torsion fatigue behaviour of hydraulic steel pipe and component all be will affect
The reliability and safety of whole system, in previous fatigue behaviour detection, mostly yaw displacement is calculated as test
Parameter, but since the disturbing factors such as material property difference, material unevenness, dimensional discrepancy influence the accuracy of test；It is trying simultaneously
The failure of test macro vulnerable part causes the increase of torque that will also have an impact to the service life of test specimen during testing.In conclusion
Connector and steel pipe bending life test machine feature are carried out at present are as follows: it is only able to achieve single Bit andits control, command displacement is precisely low,
Testing result generally differs very big with theoretical value.
Summary of the invention
In view of the deficienciess of the prior art, the object of the present invention is to provide a kind of hydraulic steel pipe detection devices.
The technical scheme adopted by the invention is that: a kind of hydraulic steel pipe detection device, including bedframe and bedframe
The lower platform of connection and the upper mounting plate being connect by column with lower platform, are characterized in that, further include servo motor, servo electricity
Machine is fixedly connected on bedframe；The output axis connection of eccentric turntable, eccentric turntable and servo motor, eccentric turntable with watch
It takes and is also connected with torque and angular sensor on the output shaft of motor connection, eccentric turntable is equipped with lead screw fixed rack, silk
Turntable is connected on thick stick fixed rack and drives lead screw, connects spherical center bearing on turntable driving lead screw；Gap bloom is arranged in centre of sphere axis
For being connect with test specimen one end in holding；Bias-adjusted driving motor connects separable axis on bias-adjusted driving motor, can
Separation shaft connect with the turntable driving lead screw being located on eccentric turntable and drives turntable driving lead screw rotation；Horizontal slide rail, setting
On lower platform surface, bias-adjusted driving motor is arranged on horizontal slide rail；Lead screw driving motor, lead screw driving motor and lead screw
It connects, the nut on lead screw is connect with horizontal slide rail；
Lower end locking member connects pressurizing adaptor on the locking member of lower end and is fixed on upper mounting plate；Upper end locking part is mounted on flat
Cooperate on platform with lower end locking member and fixes the other end of test specimen；Gas driving hydraulic pump is connect by hydraulic power transmission pipe with pressurization
Head connection.
Preferably, earthquake washer is additionally provided in the connecting portion of upper end locking part and lower end locking member.
Preferably, in the other end of test specimen and upper end locking part by being nearby additionally provided with foil gauge.
The beneficial effects of the present invention are: the bending life test machine for monitoring hydraulic steel pipe rotation status, including servo
Motor rotation drives eccentric turntable rotation, drives electricity using bias-adjusted driving motor and lead screw using bias-adjusted driving motor
Machine two motors cooperation is to adjust turntable center displacement, it is possible to reduce due to test specimen size is different, material is uneven etc. because
Plain bring measurement error.Dynamic torque and speed probe, hydraulic steel during implementation record and monitoring test are utilized simultaneously
The aging effects of the change in torque of pipe, either spherical center bearing or transmission shaft, wherein the increase of torque all can warning note, this
The significantly less test macro bring of sample is uncertain.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Other attached drawings.
Fig. 1 is in the embodiment of the present invention for monitoring the structural representation of the bending life test machine of hydraulic steel pipe rotation status
Figure；
Fig. 2 be in Fig. 1 A to enlarged diagram；
Fig. 3 be in Fig. 1 B to enlarged diagram；
Number explanation is as follows in figure: 1 bedframe, 2 Gas driving hydraulic pumps, 3 servo motors, 4 torques and angular sensor, 5
Lower platform, 6 transmission shafts, 7 eccentric turntables, 8 turntables drive lead screw, 9 lead screw fixed racks, 10 spherical center bearings, 11 gap blooms, 12
Separable axis, 13 lead screws, 14 lead screw driving motors, 15 horizontal slide rails, 16 bias-adjusted driving motors, 17 test specimens, 18 are answered
Become piece, 19 lower end locking members, 20 upper mounting plates, 21 upper end locking parts, 22 earthquake washers, 23 columns, 24 hydraulic power transmission pipes, 25 controls
And acquisition computer.
Specific embodiment
Keep the above objects, features and advantages of the present invention more obvious and easy to understand, with reference to the accompanying drawing 1~Fig. 3 and tool
The present invention is described in further detail for body embodiment.
In the present embodiment for monitoring the bending life test machine of hydraulic steel pipe rotation status, including bedframe 1, with
It is lower platform 5 that bedframe 1 connects, the upper mounting plate 20 being connect with lower platform 5 by column 23, servo motor 3, transmission shaft 6, inclined
Heart turntable 7, turntable driving lead screw 8, lead screw fixed rack 9, spherical center bearing 10, gap bloom 11, separable axis 12, lead screw 13,
Lead screw driving motor 14, horizontal slide rail 15, bias-adjusted driving motor 16, lower end locking member 19 and upper end locking part 21.Servo
Motor 3 is fixedly connected on bedframe 1, the output axis connection bias turntable 7 of servo motor 3, in eccentric turntable 7 and servo electricity
Torque and angular sensor 4 are also connected on the output shaft that machine 3 connects.Eccentric turntable 7 is equipped with lead screw fixed rack 9, silk
Turntable is connected on thick stick fixed rack 9 and drives lead screw 8, and turntable, which drives, connects spherical center bearing 10 on lead screw 8；It is set in spherical center bearing 10
There is gap bloom 11, the sealing end end of test specimen 17 is connect with gap bloom 11.Connection can divide on bias-adjusted driving motor 16
Off-axis 12, separable axis 12 connect with the turntable driving lead screw 8 being located on eccentric turntable 7 and turntable driving lead screw 8 is driven to rotate.
It is equipped with horizontal slide rail 15 on 5 surface of lower platform, bias-adjusted driving motor 16 is arranged on horizontal slide rail 15, lead screw driving motor
14 connect with lead screw 13, and the nut on lead screw 13 is connect with horizontal slide rail 15.
Pressurizing adaptor is connected on lower end locking member 19 in the present embodiment and is fixed on upper mounting plate 20.Upper end locking part 21
Be mounted on upper mounting plate 20 to cooperate with lower end locking member 19 and fix the other end of test specimen 19, close to test specimen 19 with
The junction of upper end locking part 21 is equipped with foil gauge 18.It is additionally provided in the connecting portion of upper end locking part 21 and test specimen 19 anti-
Shake washer 22.Gas driving hydraulic pump 2 is arranged on bedframe 1, and is connect by hydraulic power transmission pipe 24 with pressurizing adaptor.
Control and acquisition computer 25 respectively with servo motor 3, lead screw driving motor 14, bias-adjusted driving motor 16, turn round
Square and angular sensor 4 connect.
The course of work of bending life test machine in the present embodiment for monitoring hydraulic steel pipe rotation status is as follows:
Firstly, first the closure of test specimen 17 end is mounted in the gap bloom 11 inside spherical center bearing 10.Tested
17 other end of part pastes foil gauge 18.
Secondly, lead screw driving motor 14 rotates forward, lead screw driving motor 14 drives lead screw 3 to rotate, and makes the spiral shell being located on lead screw 3
Master tape moves bias-adjusted driving motor 16 and moves on horizontal slide rail 15, and separable axis 12 and turntable driving lead screw 8 are connected to
Together, start bias-adjusted driving motor 16, drive eccentric turntable lead screw rotation, while observing and pasting strain on test specimen 17
The reading strain of piece 19 stops bias-adjusted driving motor 16, makes lead screw driving motor 14 when strain reaches required value several times
Reversion drives and adjusts driving motor 16 to driving the direction of lead screw 8 mobile far from turntable, separable axis 12 is driven silk with turntable
Thick stick 8 separates.
Finally, Gas driving hydraulic pump 2 pressurizes to tested test specimen 17 using hydraulic power transmission pipe 24, while controlling and acquiring electricity
Whether 25 pressure of brain is stable, and servo motor 3 is opened after stablizing, and rotation speed is slowly increased to 3000r/min, and observation is turned round when operating
Square sensor and the variation of pressure sensor indicating value, after when the revolving speed not up to required, torque reaches alarming value, equipment is stopped automatically
Only, test specimen and system mode are checked, continues to rotate if causing torque increase because of test specimen 17, such as because system accessories cause to turn round
Square increases, then replaces accessory and continue to rotate, such as test specimen leaks in rotary course, then determines that test specimen does not conform to
Lattice；Test specimen has no leakage after the number of revolutions for reaching standard requirements, then it is assumed that test specimen is qualified.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (3)
1. a kind of hydraulic steel pipe detection device, including bedframe, the lower platform being connect with bedframe and by column under
The upper mounting plate of platform connection, which is characterized in that further include servo motor, servo motor is fixedly connected on bedframe；It is eccentric
The output axis connection of turntable, eccentric turntable and servo motor, is also connected on the output shaft that eccentric turntable is connect with servo motor
Torque and angular sensor, eccentric turntable are equipped with lead screw fixed rack, and connection turntable drives silk on lead screw fixed rack
Thick stick, turntable drive and connect spherical center bearing on lead screw；Gap bloom is arranged in spherical center bearing for connecting with test specimen one end
It connects；Bias-adjusted driving motor connects separable axis on bias-adjusted driving motor, separates axis and is located on eccentric turntable
Turntable driving lead screw connects and drives turntable driving lead screw rotation；Horizontal slide rail, setting is in lower platform surface, bias-adjusted driving
Motor is arranged on horizontal slide rail；Lead screw driving motor, lead screw driving motor are connect with lead screw, and the nut on lead screw and level are sliding
Rail connection；
Lower end locking member connects pressurizing adaptor on the locking member of lower end and is fixed on upper mounting plate；Upper end locking part is mounted on flat
Cooperate on platform with lower end locking member and fixes the other end of test specimen；Gas driving hydraulic pump is connect by hydraulic power transmission pipe with pressurization
Head connection.
2. hydraulic steel pipe detection device as described in claim 1, which is characterized in that in upper end locking part and lower end locking member
Connecting portion is additionally provided with earthquake washer.
3. hydraulic steel pipe detection device as described in claim 1, which is characterized in that locked in the other end of test specimen and upper end
Tight part is by being nearby additionally provided with foil gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811523460.7A CN109612856B (en) | 2018-12-13 | 2018-12-13 | Hydraulic steel pipe detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811523460.7A CN109612856B (en) | 2018-12-13 | 2018-12-13 | Hydraulic steel pipe detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109612856A true CN109612856A (en) | 2019-04-12 |
| CN109612856B CN109612856B (en) | 2023-11-24 |
Family
ID=66008482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811523460.7A Active CN109612856B (en) | 2018-12-13 | 2018-12-13 | Hydraulic steel pipe detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109612856B (en) |
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| SU467254A1 (en) * | 1972-07-21 | 1975-04-15 | Ленинградский институт текстильной и легкой промышленности им. С.М. Кирова | Vibrorelaxometer |
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|---|---|
| CN109612856B (en) | 2023-11-24 |
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