CN107271288B - 10,000 tons load testing machine moving beam lifting system - Google Patents
10,000 tons load testing machine moving beam lifting system Download PDFInfo
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- CN107271288B CN107271288B CN201710312310.0A CN201710312310A CN107271288B CN 107271288 B CN107271288 B CN 107271288B CN 201710312310 A CN201710312310 A CN 201710312310A CN 107271288 B CN107271288 B CN 107271288B
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- moving beam
- beam lifting
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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
- G01N3/12—Pressure testing
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Abstract
The invention discloses a kind of 10,000 tons load testing machine moving beam lifting system, moving beam lifting system includes: four moving beam lifting hydraulic cylinders and fluid power system；The cylinder barrel of moving beam lifting hydraulic cylinder is connect by cylinder barrel fixing piece with top beam, and the lower end of piston rod is connected by the bottom of piston joint element for bar and moving beam；The cavity for accommodating cylinder barrel is equipped on moving beam；Every group of moving beam lifting hydraulic cylinder is mounted on displacement sensor and pressure sensor；Fluid power system is for driving moving beam lifting hydraulic cylinder to run.10,000 tons load testing machine moving beam lifting system provided by the invention, can be realized that vertically move continuous stepless in space adjustable.Whole system is easy to operate, high degree of automation；Overload protection, Hydraulic Elements energy lubricating by oneself, system long service life are easily realized in hydraulic drive.Since Hydraulic Elements realize seriation, standardization and generalization, manufacture, use and maintenance are all more convenient.
Description
Technical field
The invention belongs to large-scale building components and rubber test piece pressure testing device technical field, more particularly to one kind ten thousand
Tonne load testing machine moving beam lifting system.
Background technique
With the development of urban construction, skyscraper increases increasingly, for the side such as rigidity, intensity and antidetonation of building structure
Face requirement is higher and higher, urgently needs the testing equipment of super-heavy load, extra space structure.Moving beam and column, pedestal and
Together, form one may be implemented continuously adjustable load height space to weighted platform, can satisfy the test specimen institute of various sizes
The optimum test space needed.When carrying out test specimen static state and dynamic loading test, need one kind that moving beam can be driven perpendicular
Histogram is moved to quick, smoothly a wide range of, is connected within the scope of force self-balanced mechanical framework height space including realization moving beam
Continue adjustable lifting system.Synchronous control system is as follows in moving beam lifting process at present.
Multiple hydraulic cylinders are connected realization using mechanical constraint component rigidly and synchronized by mechanical synchronization control system.
Its advantage is that structure is simple, high reliablity；The disadvantage is that in the case where unbalance loading is too big, it may appear that stuck phenomenon.
Hydraulically balanced valve synchronous control system, the fuel supply flow rate of each oil cylinder is controlled by hydraulically balanced valve, to realize
Multiple hydraulic cylinders synchronization action, synchronization accuracy depend primarily on the correlated performance of related Hydraulic Elements and oil liquid, due to using
Opened loop control, so hydraulically balanced valve synchronous control system is mainly used in the less high occasion of synchronization accuracy requirement.Currently,
Hydraulically balanced valve synchronous control technique, which is generallyd use, in domestic and international Material Testing Machine realizes moving beam lifting system.
Summary of the invention
The object of the present invention is to provide a kind of 10,000 tons load testing machine moving beam lifting systems.
The technical scheme to solve the above technical problems is that a kind of 10,000 tons load testing machine moving beam mentions
The system of liter, the bracket loading test platform include that pedestal, four columns, top beam, moving beam, moving beam lifting system and load are flat
Platform；The column is fixedly connected with pedestal respectively, and the top beam is fixed on the top of the column；The weighted platform is fixed on
On the pedestal, the moving beam is located at the top of weighted platform；Moving beam lifting system is used to drive in vertical direction
Moving beam is mobile；
Moving beam lifting system includes: four moving beam lifting hydraulic cylinders and fluid power system；It is described mobile horizontal
The cylinder barrel of beam lifting hydraulic cylinder is connect by cylinder barrel fixing piece with top beam, and the lower end of piston rod passes through piston joint element for bar and movement
The bottom of crossbeam connects；The cavity for accommodating cylinder barrel is equipped on moving beam；Every group of moving beam lifting hydraulic cylinder is pacified
Equipped with displacement sensor and pressure sensor；The fluid power system is for driving moving beam lifting hydraulic cylinder to run.
Present invention 10,000 tons load testing machine moving beam lifting system as described above, further, the cylinder barrel are solid
Determining part includes ball ring and anti-pivoted frame, and the cylinder barrel of moving beam lifting hydraulic cylinder is equipped with shoulder and trunnion；In the middle part of the ball ring
For the mounting hole passed through for cylinder barrel, ball ring is connect with top beam, and the top of ball ring is arranged in shoulder；Anti- pivoted frame is fixed with top beam
Connection, the trunnion are placed in the U-lag of anti-pivoted frame.
Present invention 10,000 tons load testing machine moving beam lifting system as described above, further, the piston rod
Connector includes lifting plate, pull rod, thrust articulated bearing, pressing plate, locking nut, stop nut；The middle part of lifting plate, which is equipped with, to be used
In the counterbore of installation piston rod, lifting plate is connect by pull rod with moving beam；Thrust articulated bearing is mounted in the counterbore,
Pressing plate fixing joint bearing outer ring limits piston rod axial displacement；Locking nut pre-tightens thrust by piston rod end external screw thread
Oscillating bearing, stop nut are tightened on the outside of locking nut.
Present invention 10,000 tons load testing machine moving beam lifting system as described above, further, the hydraulic drive
Dynamic system includes the synchronous hydraulic motor, balanced valve and the first check valve being sequentially communicated by the first petroleum pipeline, by the second petroleum pipeline
The servo valve and second one-way valve being sequentially communicated；Two-bit triplet reversal valve and oil inlet pipe, flowline, the first petroleum pipeline oil inlet end
It is connected to the oil inlet end of the second petroleum pipeline；The oil outlet of first petroleum pipeline and the oil outlet of the second petroleum pipeline and moving beam are promoted
Hydraulic cylinder connection.
Present invention 10,000 tons load testing machine moving beam lifting system as described above, further, the hydraulic drive
Dynamic system further includes multiple degrees of freedom coordinated control system, and the multiple degrees of freedom coordinated control system and displacement sensor, pressure pass
Sensor is connected with fluid power system signal.
Present invention 10,000 tons load testing machine moving beam lifting system as described above, further, the hydraulic drive
Dynamic system further includes overflow valve, and the overflow valve is connected to the overflow port of moving beam lifting hydraulic cylinder.
The beneficial effects of the present invention are:
10,000 tons load testing machine moving beam lifting system provided by the invention, can be realized and vertically move in space
Continuous stepless is adjustable.Four hydraulic cylinders are driven by synchronous drive motor, single cylinder design has electrohydraulic servo system compensation
The movement inconsistency of four hydraulic cylinders；Multiple degrees of freedom coordinated control system can coordinate the interior couple of force between lifting hydraulic cylinder
It closes, guarantees that moving beam is steady in column guide rail, quickly and safely moves.Whole system is easy to operate, the degree of automation
It is high；Overload protection, Hydraulic Elements energy lubricating by oneself, system long service life are easily realized in hydraulic drive.Since Hydraulic Elements are realized
Seriation, standardization and generalization, manufacture, use and maintenance are all more convenient.
Detailed description of the invention
It will be become by made detailed description, above-mentioned and/or otherwise advantage of the invention in conjunction with the following drawings
It becomes apparent from and is easier to understand, these attached drawings are only schematical, are not intended to limit the present invention, in which:
Fig. 1 is the 10,000 tons load testing machine schematic diagram of an embodiment of the present invention；
Fig. 2 is the moving beam lifting hydraulic cylinder schematic diagram of an embodiment of the present invention；
Fig. 3 is the cylinder barrel fixing piece schematic diagram of an embodiment of the present invention；
Fig. 4 is the piston joint element for bar schematic diagram of an embodiment of the present invention；
Fig. 5 is the high limit position schematic diagram of moving beam lifting system；
Fig. 6 is the lowest limit position view of moving beam lifting system；
Fig. 7 is the fluid power system schematic diagram of an embodiment of the present invention；
Fig. 8 is the multiple degrees of freedom coordinated control system schematic diagram of an embodiment of the present invention.
In attached drawing, parts list represented by the reference numerals are as follows:
1, pedestal, 2, column, 3, top beam, 4, moving beam, 5, moving beam lifting system, 6, weighted platform, 41, be used for
Accommodate the cavity of cylinder barrel, 51, moving beam lifting hydraulic cylinder, 52, cylinder barrel fixing piece, 53, fluid power system, 54, piston rod
Connector, 511, cylinder barrel, 512, piston rod, 521, ball ring, 522, anti-pivoted frame, the 531, first petroleum pipeline, 532, synchronous hydraulic
Motor, 533, balanced valve, the 534, first check valve, the 535, second petroleum pipeline, 536, servo valve, 537, second one-way valve, 538,
Two-bit triplet reversal valve, 541, lifting plate, 542, pull rod, 543, thrust articulated bearing, 544, pressing plate, 545, locking nut,
546, stop nut.
Specific embodiment
Hereinafter, the reality of 10,000 tons load testing machine moving beam lifting system of the invention is described with reference to the accompanying drawings
Apply example.
The embodiment recorded herein is specific specific embodiment of the invention, for illustrating design of the invention,
Be it is explanatory and illustrative, should not be construed as the limitation to embodiment of the present invention and the scope of the invention.Except what is recorded herein
Outside embodiment, those skilled in the art can also based on the claim of this application book and specification disclosure of that using aobvious and
The other technical solutions being clear to, these technical solutions include using any obvious to making for the embodiment recorded herein
The technical solution of substitutions and modifications.
The attached drawing of this specification is schematic diagram, aids in illustrating design of the invention, it is schematically indicated the shape of each section
And its correlation.It note that for the ease of clearly showing the structure of each component of the embodiment of the present invention, between each attached drawing
Do not drawn according to identical ratio.Identical reference marker is for indicating identical part.
Fig. 1 shows a kind of 10,000 tons load testing machine of embodiment, and load testing machine includes pedestal 1, four columns
2, top beam 3, moving beam 4, moving beam lifting system 5 and weighted platform 6；Column 2 is fixedly connected with pedestal 1 respectively, top beam 3
It is fixed on the top of column 2；Weighted platform 6 is fixed on pedestal 1, and moving beam 4 is located at the top of weighted platform 6；It is mobile horizontal
Beam lifting system 5 is used to drive moving beam 4 mobile in vertical direction.Pedestal, column, top beam, moving beam and weighted platform
Collectively form a set of closed internal force self equilibrium systems.Test specimen is placed between weighted platform and moving beam when test, mobile
Crossbeam can be moved on a large scale along column guide rail vertical, and different height of specimen is suitable for.
As illustrated in figs. 2-7, moving beam lifting system 5 includes: four moving beam lifting hydraulic cylinders 51 and hydraulic-driven
System 53；The cylinder barrel 511 of moving beam lifting hydraulic cylinder 51 is connect by cylinder barrel fixing piece 52 with top beam 3, under piston rod 512
End is connect by piston joint element for bar 54 with the bottom of moving beam 4；The cavity for accommodating cylinder barrel is equipped on moving beam 4
41；Every group of moving beam lifting hydraulic cylinder 51 is mounted on displacement sensor and pressure sensor；Fluid power system 53 is used for
Moving beam lifting hydraulic cylinder 51 is driven to run.
Fig. 5 and Fig. 6 is moving beam lifting system extreme position schematic diagram.Moving beam lowest spatial position promotes liquid
10 meters of travel positions of cylinder pressure, piston rod all stretch out.Moving beam highest spatial position, that is, lifting hydraulic cylinder zero stroke position, it is living
Stopper rod is fully retracted into, and cylinder barrel head a part is located within moving beam connection raised position reserved space, thus real
Show the lifting hydraulic cylinder in extra space and disposably just completes lifting process.
In embodiment as shown in Figure 3, cylinder barrel fixing piece 52 includes ball ring 521 and anti-pivoted frame 522, and moving beam mentions
The cylinder barrel 511 for rising hydraulic cylinder 51 is equipped with shoulder and trunnion；It is the mounting hole passed through for cylinder barrel 511, ball ring in the middle part of ball ring 521
521 connect with top beam 3, and the top of ball ring 521 is arranged in shoulder；Anti- pivoted frame 522 is fixedly connected with top beam 3, and trunnion is placed in anti-
In the U-lag of pivoted frame 522, the circumferential movement of cylinder body is limited.
In embodiment as shown in Figure 4, piston joint element for bar 54 includes lifting plate 541, pull rod 542, thrust joint shaft
Hold 543, pressing plate 544, locking nut 545, stop nut 546；The middle part of lifting plate 541 is equipped with for installing piston rod 512
Counterbore, lifting plate 541 are connect by pull rod 542 with moving beam 4；Thrust articulated bearing 543 is mounted in counterbore, pressing plate 544
Fixing joint bearing outer ring limits 512 axial displacement of piston rod, and inner ring can be slided globally, allows the swing of equipment low-angle；
Locking nut 545 pre-tightens thrust articulated bearing 543 by 512 end external screw thread of piston rod, and stop nut 546 is tightened on locking screw
545 outside of mother.
Consider the limitation of vertical direction mobile space, moving beam lifting hydraulic cylinder is using single rod unsymmetrical knot configuration
Formula saves space.Cylinder interior sealing then uses combination sealing form, meets heavy duty requirements.Lifting hydraulic cylinder is using super
Big stroke hydraulic cylinder, the lifting plate of piston rod connection is located at the lower part of moving beam, it can be achieved that moving beam is from lowest empty meta position
The functional requirement that highest spatial position is moved on a large scale is set, when moving beam position is located at room for promotion top, promotes liquid
A part of cylinder pressure cylinder barrel is located within moving beam reserved space and (is located in the cavity 41 for accommodating cylinder barrel), in this way may be used
Lifting process is disposably completed in extra space to realize, avoids the trouble of secondary replacement raised position, as shown in Figure 5.
Four lifting hydraulic cylinders are equipped with four displacement sensors and four pressure sensors altogether, provide position and the pressure of moving beam in real time
Difference provides live signal for the movement and dynamic regime of system detection moving beam.
In embodiment as shown in Figure 7, fluid power system 53 includes the synchronization being sequentially communicated by the first petroleum pipeline 531
Hydraulic motor 532, balanced valve 533 and the first check valve 534, the servo valve 536 and second being sequentially communicated by the second petroleum pipeline 535
Check valve 537；Two-bit triplet reversal valve 538 and oil inlet pipe, flowline, the first petroleum pipeline 531 oil inlet end and the second petroleum pipeline
535 oil inlet end connection；The oil outlet of first petroleum pipeline 531 and the oil outlet of the second petroleum pipeline 535 and moving beam promote liquid
Cylinder pressure 51 is connected to.
The fluid power system of above-described embodiment have the function of following connection relationship and: 1, moving beam rise when, it is hydraulic
The synchronized motor of oil distributes to four lifting hydraulic cylinders.It is controlled by the shunting function of syncmotor and distributes to four lift cylinders
Flow it is identical, so that it is guaranteed that lift cylinder promoted speed sync.2, the decline of moving beam is realized by the gravity of itself, mobile
When crossbeam declines, balanced valve gives lift cylinder cavity of resorption one upward reaction force, to slow down decrease speed.3, overflow valve plays peace
Full guard effect, prevents hydraulic system from overloading.4, when moving beam moves, by detecting the respective displacement signal of lift cylinder to shifting
Dynamic crossbeam position is finely adjusted, and servo valve individually carries out servo closed control to each lifting hydraulic cylinder.5, no matter syncmotor
Oil circuit or servo valve control oil circuit are controlled, hydraulic control one-way valve is designed with, the check valve for two control oil circuits in addition to cutting
Outside changing, lifting hydraulic cylinder can also be reliably locked at current location.6, two-bit triplet reversal valve is mentioned for lifting hydraulic cylinder
It rises and descending motion switches.After moving beam is adjusted, hydraulic locking is may be implemented in check valve 5, guarantees that moving beam can
That leans on is locked at current location.
In embodiment as shown in Figure 8, fluid power system 53 further includes multiple degrees of freedom coordinated control system, mostly freely
Degree coordinated control system is connect with displacement sensor, pressure sensor and 53 signal of fluid power system.Further preferred
In embodiment, fluid power system 53 further includes overflow valve, and overflow valve is connected to the overflow port of moving beam lifting hydraulic cylinder 51.
The multiple degrees of freedom coordinated control system of above-described embodiment have the function of following connection type and: 1, freedom degree decompose square
For battle array for converting four lifting hydraulic cylinder pressure controling signals for two position error signals of moving beam, driving is corresponding
Lifting motion.2, freedom degree composite matrix is used to turn the feedback signal (position, velocity and acceleration) of four lifting hydraulic cylinders
Turn to the feedback signal of two freedom degrees.3, single cylinder velocity composite module passes through anti-to the differential and acceleration that are displaced feedback signal
The integral aggregate velocity signal of feedback signal.4, the effect of pressure stability controller is in the value weakening system by adjusting control amount
Internal force coupling between each lifting hydraulic cylinder, reduces energy internal friction.The basic principle is that taking the pressure difference of each lifting hydraulic cylinder for feedback
Amount, calculates the internal force coupling value of each hydraulic cylinder, then be added to each hydraulic cylinder according to a certain percentage after this value is negated and control back
The inner ring on road.Final strict control moving beam along the translational motion of Z-direction guarantees that movement interference does not occur with column guide rail.
Each technical characteristic of above-mentioned disclosure is not limited to disclosed and other feature combination, and those skilled in the art are also
Can carry out other combinations between each technical characteristic according to the purpose of invention, be subject to realize the present invention purpose.
Claims (6)
1. a kind of 10,000 tons load testing machine moving beam lifting system, which is characterized in that the 10,000 tons load test dress
It sets including pedestal, four columns, top beam, moving beam, moving beam lifting system and weighted platform；The column respectively with base
Seat is fixedly connected, and the top beam is fixed on the top of the column；The weighted platform is fixed on the pedestal, the movement
Crossbeam is located at the top of weighted platform；Moving beam lifting system is used to drive moving beam mobile in vertical direction；It is mobile horizontal
Beam lifting system includes: four moving beam lifting hydraulic cylinders and fluid power system；The moving beam lifting hydraulic cylinder
Cylinder barrel is connect by cylinder barrel fixing piece with top beam, and the lower end of piston rod is connected by the bottom of piston joint element for bar and moving beam
It connects；The cavity for accommodating cylinder barrel is equipped on moving beam；Every group of moving beam lifting hydraulic cylinder is mounted on displacement sensing
Device and pressure sensor；The fluid power system is for driving moving beam lifting hydraulic cylinder to run；
The cylinder barrel fixing piece includes ball ring and anti-pivoted frame, and the cylinder barrel of moving beam lifting hydraulic cylinder is equipped with shoulder and trunnion；
It is the mounting hole passed through for cylinder barrel in the middle part of the ball ring, ball ring is connect with top beam, and the top of ball ring is arranged in shoulder；It is anti-
Pivoted frame is fixedly connected with top beam, and the trunnion is placed in the U-lag of anti-pivoted frame.
2. 10,000 tons load testing machine moving beam lifting system according to claim 1, which is characterized in that the work
Stopper rod connector includes lifting plate, pull rod, thrust articulated bearing, pressing plate, locking nut, stop nut；It is set in the middle part of lifting plate
There is the counterbore for installing piston rod, lifting plate is connect by pull rod with moving beam；Thrust articulated bearing is mounted on described heavy
In hole, pressing plate fixing joint bearing outer ring limits piston rod axial displacement；Locking nut is pre-tightened by piston rod end external screw thread
Thrust articulated bearing, stop nut are tightened on the outside of locking nut.
3. 10,000 tons load testing machine moving beam lifting system according to claim 1 or 2, which is characterized in that institute
Stating fluid power system includes the synchronous hydraulic motor, balanced valve and the first check valve being sequentially communicated by the first petroleum pipeline, by
The servo valve and second one-way valve that two petroleum pipelines are sequentially communicated；Two-bit triplet reversal valve and oil inlet pipe, flowline, the first petroleum pipeline
Oil inlet end and the second petroleum pipeline oil inlet end connection；The oil outlet and movement of the oil outlet of first petroleum pipeline and the second petroleum pipeline
The connection of crossbeam lifting hydraulic cylinder.
4. 10,000 tons load testing machine moving beam lifting system according to claim 3, which is characterized in that the liquid
Pressing drive system further includes multiple degrees of freedom coordinated control system, the multiple degrees of freedom coordinated control system and displacement sensor, pressure
Force snesor is connected with fluid power system signal.
5. 10,000 tons load testing machine moving beam lifting system according to claim 3, which is characterized in that the liquid
Pressing drive system further includes overflow valve, and the overflow valve is connected to the overflow port of moving beam lifting hydraulic cylinder.
6. 10,000 tons load testing machine moving beam lifting system according to claim 5, which is characterized in that the liquid
Pressing drive system further includes multiple degrees of freedom coordinated control system, the multiple degrees of freedom coordinated control system and displacement sensor, pressure
Force snesor is connected with fluid power system signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710312310.0A CN107271288B (en) | 2017-05-05 | 2017-05-05 | 10,000 tons load testing machine moving beam lifting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710312310.0A CN107271288B (en) | 2017-05-05 | 2017-05-05 | 10,000 tons load testing machine moving beam lifting system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107271288A CN107271288A (en) | 2017-10-20 |
| CN107271288B true CN107271288B (en) | 2019-08-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710312310.0A Active CN107271288B (en) | 2017-05-05 | 2017-05-05 | 10,000 tons load testing machine moving beam lifting system |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112284911B (en) * | 2020-10-14 | 2023-10-10 | 中建工程试验检测(北京)有限公司 | Multi-functional test system of ten thousand tons level |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216485A (en) * | 2013-04-09 | 2013-07-24 | 西安交通大学 | Piston cylinder for driving movable transverse beam to ascend and descend and supplying oil to hydraulic cylinder in transverse beam |
| CN105257614A (en) * | 2015-11-25 | 2016-01-20 | 上海电气液压气动有限公司 | Hydraulic oil cylinder high-precision synchronous control complete device of ultralarge heavy equipment |
| CN105424483A (en) * | 2015-11-05 | 2016-03-23 | 中国建筑股份有限公司 | Buckling-restrained brace self-balancing vertical loading test system and method thereof |
| CN205170290U (en) * | 2015-12-02 | 2016-04-20 | 招商局重工(深圳)有限公司 | Hoisting device |
-
2017
- 2017-05-05 CN CN201710312310.0A patent/CN107271288B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216485A (en) * | 2013-04-09 | 2013-07-24 | 西安交通大学 | Piston cylinder for driving movable transverse beam to ascend and descend and supplying oil to hydraulic cylinder in transverse beam |
| CN105424483A (en) * | 2015-11-05 | 2016-03-23 | 中国建筑股份有限公司 | Buckling-restrained brace self-balancing vertical loading test system and method thereof |
| CN105257614A (en) * | 2015-11-25 | 2016-01-20 | 上海电气液压气动有限公司 | Hydraulic oil cylinder high-precision synchronous control complete device of ultralarge heavy equipment |
| CN205170290U (en) * | 2015-12-02 | 2016-04-20 | 招商局重工(深圳)有限公司 | Hoisting device |
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